Volume 11, Number 2 (June 2014)                   IJMSE 2014, 11(2): 1-13 | Back to browse issues page


XML Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

M. Mohammadnejad, M. Ehteshamzadeh, S. Soroushian. EFFECT OF ANNEALING ON MICROSTRUCTURE AND CORROSION PERFORMANCE OF ADB AND ALB ALLOYS. IJMSE. 2014; 11 (2) :1-13
URL: http://ijmse.iust.ac.ir/article-1-651-en.html

Abstract:   (2412 Views)

Microstructure and corrosion performance of admiralty brass (ADB) and aluminum brass (ALB) alloys after passing different annealing heat treatments were investigated using optical and scanning electron microscope, energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), DC polarization measurements and electrochemical impedance spectroscopy (EIS). The results showed that heat treating of ALB caused gradient in aluminum concentration across the grains whose increased with increasing of annealing temperature. On the other hand, corrosion current density (i corr) of ADB in 3.5%NaCl media decreased with increasing of recrystallization, while ALB showed corrosion behavior inconsistent with ADB. The impedance measurements showed that corrosion rate of ADB decreased with increasing of exposure time from 0 to 15 days which could be related to the formation of SnO 2 surface film and the Sn-rich phases. While polarization resistance of ALB decreased by passing days in the corrosive media which could be associated to establishing of differential aluminum concentration cells.

Full-Text [PDF 6181 kb]   (1215 Downloads)    

Add your comments about this article : Your username or email:
Write the security code in the box

Send email to the article author


© 2016 All Rights Reserved | Iranian Journal of Materials Science and Engineering

Designed & Developed by : Yektaweb