کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1623160 1516412 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Structural studies of decomposition in Fe–x at.%Ga alloys
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Structural studies of decomposition in Fe–x at.%Ga alloys
چکیده انگلیسی

Decomposition in Fe–x at.%Ga alloys subjected to different thermal treatments has been investigated by high-resolution X-ray and neutron diffraction for 12 < x < 25. Quenching suppresses the formation of a D03 structure in favor of a high-temperature disordered bcc (A2) structure. By contrast, annealing produces a two-phase mixture of A2 + D03 for 14 < x < 20 and a fully D03 phase for x = 25. Temperature dependent studies revealed that phase separation occurs below 650 °C on cooling for x = 20, where a notable radial line broadening develops. The splitting of the (2 0 0) and (0 0 2) Bragg peaks observed along the respective transverse directions indicates that the samples are composed of multiple crystal grains, slightly tilted with respect to each other.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 465, Issues 1–2, 6 October 2008, Pages 244–249
نویسندگان
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