Volume 7, Issue 1 (winter 2010 2010)                   IJMSE 2010, 7(1): 32-38 | Back to browse issues page

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A. Rezvanifar, M. Zandrahimi. EVALUATION OFDISLOCATION STRUCTURE AND CRYSTALLITE SIZE IN WORN AL-SI ALLOY BY X-RAY DIFFRACTION. IJMSE 2010; 7 (1) :32-38
URL: http://ijmse.iust.ac.ir/article-1-251-en.html
Abstract:   (22759 Views)

Abstract:

powerful method for the characterization of microstructures of crystalline materials in terms of crystallite size and

dislocation structures. In this paper the effect of the sliding on the microstructure of A356 in the as-cast and heat

treated conditions are studied, The X-ray phase analysis shows that with increasing applied load, the dislocation

density is increased, whereas the crystallite size is decreased. It was found that heat treatment raised dislocation

density during wear. The screw or edge character of dislocations in worn specimens were determined by analyzing the

dislocation contrast factors, it was demonstrated that the character of the prevailing dislocations in high loads is

nearly pure screw.

Diffraction peak profile analysis has recently been developed to such an extent that it can be applied as a
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Type of Study: Research Paper |

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