Behavior of X-ray peak widths in the Wilkens model of a restrictedly random distribution of dislocations

被引：8

作者：

Borbély, A ^{[1
]}

Guiglionda, G ^{[1
]}

Driver, JH ^{[1
]}

机构：

[1] Eotvos Lorand Univ, Inst Gen Phys, H-1518 Budapest, Hungary

来源：

ZEITSCHRIFT FUR METALLKUNDE | 2002年 / 93卷 / 07期

关键词：

plastic deformation; dislocation density; X-ray Bragg peaks; strain anisotropy;

D O I：

10.3139/146.020689

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The behavior of the width of X-ray Bragg peaks recorded from dislocated crystals has been investigated both numerically and experimentally. Numerical simulations based on the Wilkens model of a restrictedly random dislocation distribution have shown that the width of the X-ray peaks increases linearly in the modified Williamson-Hall (mWH) plot. The slope of the line is proportional to the square root of the average dislocation density. The method has been used to evaluate the dislocation densities in two texture components of a hot-deformed Al-2.5 wt.% Mg alloy, where peak broadening has additional sources.

引用

页码：689 / 693

页数：5

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