کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1500824 993360 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Stress-induced softening and hardening in a bulk metallic glass
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Stress-induced softening and hardening in a bulk metallic glass
چکیده انگلیسی

To uncover the influence of pre-existing/residual stress on the mechanical behavior of metallic glass, the micro-Vickers indentation of a stressed metallic glass was studied. The pre-existing stress was introduced by bending. The results show that the nominal hardness decreases with pre-existing tensile stress and increases with pre-existing compressive stress. The real hardness decreases with pre-existing tensile stress, but does not increase obviously with pre-existing compressive stress. The mechanism of the strong hardness dependence on stress was investigated using finite element analysis. The unexpected hardness dependence on pre-existing compressive stress is also discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scripta Materialia - Volume 59, Issue 11, December 2008, Pages 1210–1213
نویسندگان
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