کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1500632 993353 2010 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Macroscopic versus local strain rates during tensile testing of pseudoelastic NiTi
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Macroscopic versus local strain rates during tensile testing of pseudoelastic NiTi
چکیده انگلیسی

During tensile testing of pseudoelastic NiTi, martensitic transformation bands propagate through the specimen. We compare stress–strain curves for different gauge lengths and cross-head displacement rates (CHDRs) to demonstrate that the CHDR is a physically meaningful measure that unambiguously characterizes the thermomechanical loading situation. This allows estimation of local strain rates, which are determined for the first time by considering the finite width of mesoscale phase interfaces. Local rates and macroscopic strain rates differ by at least one order of magnitude.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scripta Materialia - Volume 63, Issue 8, October 2010, Pages 863–866
نویسندگان
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