کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1637230 1516999 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Grain size dependence of flow stress in ECAPed Ti with constant texture
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Grain size dependence of flow stress in ECAPed Ti with constant texture
چکیده انگلیسی
The effect of grain size on the flow stress in an ECAPed Ti with a constant texture was investigated, assuming that 2, 4, 5 and 6 passes microstructures have a similar texture. The average size of recrystallized grains decreased to 0.5 μm, 0.4 μm, and 0.3 μm with respect to the ECAP pass number of 2, 4, and 6, respectively. The ultimate tensile strength (UTS) and yield strength (YS) increase with an increase in the number of pressing. The UTS and YS of the 6 passes ECAPed sample were found to be 740.2 MPa and 580.3 MPa, respectively. An equation for the flow stress of an ECAPed Ti with a constant texture as a function of the strain and grain size was derived for the ECAPed metal. The following equation was finally obtained: σ(σ)=103.9+1825σ-9.6σ1/2·d−1/2+8.3d−1/2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 22, Supplement 3, December 2012, Pages s673-s677
نویسندگان
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