کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1500427 993346 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Role of the alloying element in suppressing the negative effect of O in NiAl: Cr as an example
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Role of the alloying element in suppressing the negative effect of O in NiAl: Cr as an example
چکیده انگلیسی

We investigate the effect of Cr on the mechanical properties of NiAl with O by a first-principles method. Cr is shown to replace either Ni or Al depending on the surrounding environment. Based on the calculated “local elastic constants” and empirical criteria, we demonstrate that Cr can suppress the negative effect of O, and thus improve the “local ductility” of NiAl. Here, we exemplify a useful way to estimate effects of alloying elements on the mechanical properties of intermetallics from first principles.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scripta Materialia - Volume 61, Issue 2, July 2009, Pages 189–192
نویسندگان
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