کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
832530 908121 2010 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Indentation size effect of hardness of metallic glasses
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Indentation size effect of hardness of metallic glasses
چکیده انگلیسی

It has been found that the hardness measured from different metallic glassy samples using the Oliver and Pharr scheme [Oliver WC, Pharr GM. An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments. J Mater Res 1992;7:1564–83] [1] shows an apparent indentation size effect (ISE), i.e., the hardness decreases as indentation depth increases. A similar ISE of the pile-up ratio has also been found. A ribbon glassy sample fabricated at a larger cooling rate shows larger pile-up and lower hardness value than a bulk glassy sample under the same conditions. The ISE of hardness can be effectively eliminated by taking into account the different pile-up ratios at different indentation depths.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 31, Issue 3, March 2010, Pages 1563–1566
نویسندگان
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