@article{ 
author = {SAREMIM.,  and MOTAGHIGOLSHANB.,},  
title = {ELECTRODEPOSITION OF NANO SIZE HYDROXYAPATITE COATING ON TI ALLOY}, 
abstract ={A film of osteoconductive and biocompatible material on biomedical metallic implants can create bioactivity of the implant and shorten healing time. Hydroxyapatite, that is the most important mineral part of human bone, was coated on Ti6Al4V using cathodic electrode position process. Pulse electrode position technique was used and the effects of different parameters such as potential, duty cycle (on time/ (on time+ off time)), temperature and current density on the morphology of the deposits were examined. Nano size deposits were formed under controlled temperature and optimization of voltage and current density.},  
Keywords = {HYDROXYAPATITE, ELECTRODEPOSITION, PULSE ELECTRODE POSITION, MORPHOLOGY},
volume = {3},
Number = {3}, 
pages = {1-5}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-69-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-69-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2006}  
}

@article{ 
author = {OPREAG.,},  
title = {FAILURE MECHANISMS OF REFRACTORY LININGS FOR NONFERROUS FLASH SMELTING FURNACES}, 
abstract ={Although the flash smelting technologies use different furnace designs, the refractory linings are exposed to very similar aggressive environments and, as a result, the corrosion analysis results on one type of furnace could be generally applied to other furnaces of similar high temperature processes. Particularities regarding the different chemistries of the pyrometallurgical process and operating parameters of these furnaces could also bring particular aspects to be considered when analyzing the refractory ware and final failure in use. This paper presents a review of the existent experimental. data of corrosion analyses on refractory linings used in two particular flash furnaces for zinc-lead and respectively nickel-copper smelting. Although various modern water cooling systems are generally used to protect the refractory wall linings against corrosion by molten slag and matte, the performance of the refractory roof lining, usually used without water cooling, represents a permanent concern and the object of research studies to extend their life in service. The failure mechanisms analysed in this study are based on postmortem analyses and laboratory corrosion experiments with magnesite-chrome bricks of different chemical and mineralogical compositions. The gaseous atmosphere, usually rich in SO2 and/or CO and various metal fumes, produces irreversible microstructural changes which could shorten the life in service of the refractory lining. The experimental data proved that thermal cycling in SO2/SO3 atmospheres could bring more damage than a continuous use at relatively constant temperature, due to the magnesium and calcium sulphate formation. The laboratory experiments and postmortem analyses showed that that metal fumes at various partial pressure of oxygen would condense as oxides and react inside the pores and at the grain boundaries, contributing to the continuous deterioration of the ceramic matrix of the refractory brick lining. The mechanisms of corrosion, discussed based on laboratory experiments, were confirmed by the postmortem analyses on brick samples used in the industrial flash smelting furnaces.},  
Keywords = {REFRACTORY, MECHANICAL PROPERTIES, FAILURE, SMELTING FURNACE, MAGNESITE,CHROME},
volume = {3},
Number = {3}, 
pages = {9-15}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-75-en.html},  
eprint = {},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2006}  
}

@article{ 
author = {BABAEIR.,  and SHAHINFARS.,  and HOMAYONIFARP.,  and DADASHZADEHM.,  and DAVAMIP.,},  
title = {THREE DIMENSIONAL MODELING OF TURBULENT FLOW WITH FREE SURFACE IN MOLD FILLING}, 
abstract ={In the present study a Finite Difference Method has been developed to model the transient incompressible turbulent free surface fluid flow. A single fluid has been selected for modeling of mold filling and The SOLA VOF 3D technique was modified to increase the accuracy of simulation of filling phenomena for shape castings. For modeling the turbulence phenomena k-e standard model was used. In order to achieve an accurate model, solving domain was discrete to three regions includes: laminar sub layer, boundary layer and internal region. This model was applied to experimental models such as a driven cavity, Campbell benchmark [1] and top filled cavity. The results show that the suggested model yield favorable predictions of turbulence flow and have a good consistency in comparing with experimental results.},  
Keywords = {MODELING, MOLD FILLING, TURBULENT FLOW},
volume = {3},
Number = {3}, 
pages = {9-15}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-74-en.html},  
eprint = {},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2006}  
}

@article{ 
author = {NOSRATIF.,  and ZAREIHANZAKIA.,},  
title = {THE EFFECT OF STRAINING BEFORE AND DURING AUSTENITE TO FERRITE TRANSFORMATION ON THE FINAL CHARACTERISTICS OF SI-MN TRIP STEELS}, 
abstract ={TRIP (TRansformation- lnduced- Plasticity) behavior is a powerful mechanism to improve mechanical properties. The basis of TRIP phenomena is the transformation of retained austenite with optimum characteristics (volume fraction, stability, size and morphology) to martensite during deformation at room temperature. Accordingly, the first requirement to obtain desired TRIP effects is to produce an appropriate microstructure. Thermo mechanical processing is an effective method to control the microstructural evolution thereby mechanical properties in TRIP steels. This work deals with a TRIP steel containing 0.2% C, evaluating the effects of straining before and during ?®a atransformation on its final characteristics, using hot compression tests. The results revealed that straining in the two phase region (dynamic transformation) not only reduces the ferrite grain size more significantly, but also increases the retained austenite volumefraction. Accordingly the final mechanical properties were also improved.},  
Keywords = {TRIP STEELS, THERMOMECHANICAL PROCESSING, PANCAKING, DYNAMIC TRANSFORMATIO},
volume = {3},
Number = {3}, 
pages = {9-15}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-73-en.html},  
eprint = {},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2006}  
}

@article{ 
author = {EBRAHIMIA.R.,  and YADEGARIM.,  and KHOSROSHAHIR.A.,},  
title = {EFFECT OF DIFFUSION ANNEALING ON PROPERTIES OF TI/304L STAINLESS STEEL EXPLOSION CLAD}, 
abstract ={In this study, commercially pure titanium/304L stainless steel explosion bonded clads have been annealed under argon atmosphere over the temperature range of 700-900°C for 1h.Microstructure of the clads have been investigated before and after anealing. X-ray diffraction studies revealed that the annealing products in the form of intermetallic phases were gradually formed at the interface of the annealed clads. It was also found that, the bonding zone width increased with temperature according to an Arrhenius type equation. On the base of this equation, the activation energy of bonding zone growth was found equal to about 66.5 kJ/mol. The bond strength of the diffusion annealed clads were evaluated stress relieved. The maximum average tensile strength of ~350MPa was obtained for the as-welded clad. It was found that the bond strength decreased with annealing at 700°C due to an increase in the width of brittle intermetallic layer.},  
Keywords = {ANNEALING, EXPLOSION CLAD, TITANIUM, 304L STAINLESS STEEL},
volume = {3},
Number = {3}, 
pages = {9-15}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-72-en.html},  
eprint = {},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2006}  
}

@article{ 
author = {ABBASIS.M.,  and SHOKOUHFARA.,  and EHSANIN.,},  
title = {PREDICTION OF HOT DEFORMATION BEHAVIOUR OF A PH STAINLESS STEEL AT HIGH STRAIN RATES}, 
abstract ={In this study the hot deformation behaviour of a precipitation hardened (PH) stainless steel at high strain rates has been predicted through hot compression testing. Stress-strain curves were obtained for a range of strain rates from 10-3 to 10+1 S-1 and temperatures from 850 to 1150°C. Results obtained by microstructure and stress-strain curves show that at low temperatures and high strain rates, where the Zener-Holman parameter (Z) is high, work hardening and dynamic recovery occure. By increasing temperature and decreasing strain rate, the Z parameter is decreased, so that dynamic recrystallization is the dominant softening mechanism. The results were fitted using a Log Z versus Log (sinh (a sp) diagram allowing an assessment of the behavior of the stresses measured at strain rates closer to those related to the industrial hot rolling schedules. It is clearly shown that the data collected from low strain rate testing can be fairly reasonably extrapolated to higher orders of magnitude of strain rate.},  
Keywords = {HOT DEFORMATION; HIGH STRAIN RATES, PH STAINLESS STEEL},
volume = {3},
Number = {3}, 
pages = {9-15}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-71-en.html},  
eprint = {},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2006}  
}

@article{ 
author = {ARABIH.,  and DIVANDARIM.,  and HOSSEINIA.H.M.,},  
title = {THE EFFECT OF TI CONTENTS ON THE AMOUNTS OF INCLUSIONS FORMATION AND MECHANICAL PROPERTIES OF C300 HIGH STRENGTH STEEL}, 
abstract ={In this research the influence of Ti contents on the amounts of inclusions formation and mechanical properties of a high alloy high strength steel, C300, has been investigated. For this purpose several bars were casted under the same solidification conditions, but different amounts of Ti element. All the seven casted bars were homogenized at 1200°C for a period of 2 hours. Then, they were immediately hot rolled after homogenization so that the out rolling temperature was kept in the range of 1000-1200° C. The specimens were then solution annealed at 820°C for hour and finally they were aged for a period of 3 hours at 500°C. The samples were subjected to tensile, impact and hardness tests in order to relate the variation in volume percent of inclusions due to different amount of Ti, to mechanical properties. The results showed that by increasing the amount of Ti a serious decline in toughness properties of the alloy due to increase in inclusion population occurred. So this research provides a very useful information about the relation between volume fraction of inclusions and mechanical properties of a C300 high strength steel.},  
Keywords = {HIGH STRENGTH STEEL, INCLUSION, TI CONTENTS, CASTING, MECHANICAL PROPERTIES, MARAGING C3000},
volume = {3},
Number = {3}, 
pages = {9-15}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-70-en.html},  
eprint = {},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2006}  
}

@article{ 
author = {RIGAUDM.,  and PALCOS.,  and PARANSKYE.,},  
title = {NEW REFRACTORY MATERIALS FOR THE COPPER INDUSTRY}, 
abstract ={Wear of various basic refractory materials to substitute to currently used magnesia chrome bricks has been studied, measuring matte and slag penetration and dissolution, through different cup and rotary slag tests. High magnesia with and without impregnation, magnesia graphite, magnesia-alumina spinel with and without impregnation, olivine-magnesia and olivine magnesia- graphite bricks, as well as magnesia-graphite and olivine magnesia castables, have been tested. It has been shown that carbon impregnation and graphite introduction into basic refractories are feasible ways to enhance their corrosion-dissolution and penetration resistance against fayalite as well as calcium-ferrite slags. Olivine-based refractories (castables or bricks) may be considered as viable candidates to use in copper-making furnaces. At this point, evaluation of the thermo-mechanical properties of this new class of materials is still missing.},  
Keywords = {REFRACTORY, WEAR, COPPER INDUSTRY, SLAG},
volume = {3},
Number = {1}, 
pages = {9-15}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-84-en.html},  
eprint = {},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2006}  
}

@article{ 
author = {GOLAZARM.A.,  and MOSTAGHIMIJ.,  and COYLET.W.,},  
title = {WEAR REESISTANCE OF NANOSTRUCTURED AND CONVENTIONAL YTTRIA-STABILIZED ZIRCONIA COATINGS}, 
abstract ={Partially stabilized zirconia (PSZ) has been proven to be an excellent candidate as a thermal barrier coating (TBe) for hot sections in, for instance, heat or internal combustion engines and gas turbine parts. The main functions of these coatings are reducing heat losses, reducing fuel consumption, increasing efficiency, and extending durability and life. One of the main problems involved is wear behavior in the development of such coatings for these applications. Using the air plasma spraying (APS) technique, conventional and nanostructured 8 wt % yttria partially stabilized zirconia (Y-PSZ) coatings were deposited on austenitic stainless steel (AISI304) disc-shaped substrates. The coated substrates were subjected to pin-on-disc wear tests, using 10 mm silicon nitride and zirconia balls as the pin. The coefficient of friction was recorded in real time. The weight loss of coated substrates was measured. Coatings were characterized before and after being subjected to wear testing by various techniques including optical microscopy, scanning electron microscopy (SEM), energy dispersive X-ray spectrometry (EDX) and X-ray diffraction (XRD). Effects of various experimental parameters such as wear distance, test temperature, and counter face material were also investigated. Results obtained revealed that, regardless of experimental conditions applied, the nanostructured zirconia coating shows better wear and tribological properties than that of the conventional one.},  
Keywords = {WEAR BEHAVIOUR, ZICONIA COATING, YTTRIA STABILIZED COATING, THERMAL BARRIER COATING,Y,PSZ},
volume = {3},
Number = {1}, 
pages = {9-15}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-83-en.html},  
eprint = {},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2006}  
}

@article{ 
author = {FATEMINAYERIS.H.R.,  and ABOUTALEBIM.R.,  and VAHDATIKHAKIJ.,},  
title = {THE EFFECT OF MILLING CONDITIONS ON THE MECHANICAL ALLOYING AND COMBUSTION SYNTHESIS OF TIO2-AI-C POWDER MIXTURE}, 
abstract ={A mixture of Tio2+Al+C powders was mechanically activated using a planetary ball mill under different milling conditions wherein the milled powders were further subjected to combustion synthesis to produce TiC+Al2O3 composite. The mechanically alloyed powders were characterized by X-Ray diffraction analysis and TEM investigations. XRD analysis of milled powder mixture showed no significant reaction between TiO2, Al and C while a significant amorphization of powder mixtures was observed. TEM analysis indicated the formation of a composite structure of powder particles after milling. The subsequent thermal treatment of the milled powder mix showed that the milling of initial powder mixture under dry environment using mixed large and small balls had a great effect on reaction efficiency and yielded to the highest TiC + Al2O3 ratio in the synthesized products.},  
Keywords = {},
volume = {3},
Number = {1}, 
pages = {9-15}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-82-en.html},  
eprint = {},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2006}  
}

@article{ 
author = {HADDADSABZEVARM.,  and FREDRIKSSONH.,},  
title = {HOT CRACK FORMATION IN PURE CU AND CU-30%ZN ALLOY DURING IN SITU SOLIDIFICATION}, 
abstract ={The hot cracking susceptibility can be determined by establishing the transition temperature between brittle and ductile fracture at high temperature tensile testing of in situ solidified samples. High temperature tensile properties were determined for commercial cathodic pure Cu and Cu- 30%Zn alloy. The transition temperatures for pure Cu and Cu-30%Zn were evaluated from ultimate tensile stress, true strain and area reduction at different testing temperatures. The results show that hot cracking in pure Cu also occurred below and near to its melting temperature. It can be proposed that in this case excess vacancies and vacancy diffusion and condensation are the dominating mechanisms for hot crack formation. The transition temperature for Cu- 30%Zn was much lower than its solidus temperature and this alloy has more susceptibility to hot cracking as compared to pure Cu. The effect of two different cooling rates (15 °C/min and 60 °C/min) on the transition temperature was investigated. The results show that by increasing cooling rate, the transition temperature will increase. The morphology of fracture surfaces for both ductile and brittle modes were evaluated by SEM Two different morphologies, i.e. interdendiritic and intergranual fracture, was found.},  
Keywords = {HOT CRACK, TRANSITION TEMPERATURE, VACANCY, BRITTLE, DUCTILE, FRACTURE},
volume = {3},
Number = {1}, 
pages = {9-15}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-81-en.html},  
eprint = {},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2006}  
}

@article{ 
author = {HOSSEINISH.,  and ARABIH.,  and TAMIZIFARM.,  and ZEYAEIA.A.,},  
title = {EFFECTS OF TENSILE STRENGTH ON FATIGUE BEHAVIOR AND NOTCH SENSITIVITY OF TI-6AL-4V}, 
abstract ={In this research, rotating bending fatigue test at minimum to maximum stress ratio of R=-1 was used for investigating the fatigue behavior of Ti-6Al-4V alloy. Both smooth and notched specimens, with elastic concentration factor, kt, of approximately 3.6 and 4.1 were used for this purpose.In addition, the effect of variation in ultimate tensile strength, UTS, on the fatigue behavior of this alloy was studied. S-N curves were drawn and the value of notch sensitivity was obtained or each case.The results showed that the presence of notch in Ti-6Al-4V alloy has a different amount of sensitivity when the notched specimens were subjected to high cycle fatigue (HCF) and low cycle fatigue (LCF) tests. However, the notch sensitivity of this alloy was shown generally to be much lower than steel alloys with similar UTS values. Thus, considering the high compatibility of this alloy with the body environment and its low sensitivity to notch, one can strongly recommend this alloy for use in biomedical application.},  
Keywords = {TI,6AL,4V ALLOY, FATIGUE, STRESS CONCENTRATION FACTOR, FATIGUE NOTCH FACTOR, NOTCH SENSITIVITY, EFFECT OF UTS ON FATIGUE, BIOMEDICAL MATERIAL},
volume = {3},
Number = {1}, 
pages = {9-15}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-80-en.html},  
eprint = {},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2006}  
}

@article{ 
author = {ALAEEM.S.,},  
title = {MICROSTRUCTURAL STUDY OF SILICON NITRIDE WHISKERS PRODUCED BY NITRIDATION OF PLASMA-SPRAYED SILICON LAYERS}, 
abstract ={plasma-sprayed silicon layers have been used to produce silicon nitride layers with fibrous microstructure which optimizes fracture toughness and strength. SEM examination of the specimens shows that the surface is covered by fine needles and whiskers of Si3N4.In order to study the oxygen contamination effect as well as other contaminants introduced during spraying and nitridation processes, surface sensitive analysis techniques like AES and XPS have been used to determine concentration of these contaminants.},  
Keywords = {PLASMA SPRAY, SILICON NITRIDE, CONTAMINATION. WHISKERS, SURFACE ANALYSIS, MICROSTRUCTURE},
volume = {3},
Number = {1}, 
pages = {9-15}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-79-en.html},  
eprint = {},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2006}  
}

@article{ 
author = {BARADARIH.,  and AMANIHAMEDANIH.,  and KARIMIKHOYGANIS.,  and REZAEIH.R.,  and JAVADPOURJ.,  and SARPOULAKIH.,},  
title = {THE EFFECT OF RAW MATERIALS CONCENTRATION ON HYDROXYAPATITE POWDER CHARACTERISTICS AND SINTERING BEHAVLOR}, 
abstract ={Ultrafine hydroxyapatite (HAp) powders with crystallite size in the range of 10-90 nm were synthesized by chemical precipitation process using Ca(OH)2 and H3PO4 solutions as starting materials. Molar ratio of Ca/P=1.68 was kept constant throughout the process and alkaline condition for the reaction was maintained using ammonium hydroxide. The role of raw material concentration on HAp crystallite size and morphology were investigated using X-ray diffraction (XRD) and scanning electron microscope (SEM) techniques. The results revealed that variations in crystallite size and morphology of synthesized HAp are strongly affected by the concentration of acid solution. To study the sintering behavior of HAp particles, the powders were pressed at 200 MPa using a uniaxial press. Sintering experiments were carried out at temperatures of 1100, 1250 and 1300°C with various soaking times at maximum temperatures. XRD was also used in determining thephases present after sintering process. The results indicated the decomposition of HAp into a-tricalcium phosphate (TCP) and b-TCP phases at 1300°C. The microstructure of the sintered HAp ceramics was characterized by SEM.},  
Keywords = {HYDROXYAPATITE, CHEMICAL PRECIPITATION, NANOCRYSTALLITES, MORPHOLOGY, SINTERING, MICROSTRUCTURE},
volume = {3},
Number = {1}, 
pages = {9-15}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-78-en.html},  
eprint = {},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2006}  
}