کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1574361 1514711 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Variation of work hardening rate by oxygen contents in pure titanium alloy
ترجمه فارسی عنوان
تنوع سختی کاری توسط میزان اکسیژن در آلیاژ تیتانیوم خالص
کلمات کلیدی
اکسیژن، نرخ سخت شدن کار، رفتار تغییر شکل آلیاژ تیتانیوم خالص
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
چکیده انگلیسی

Pure titanium–oxygen alloys with different oxygen contents were tensile-tested to investigate the effect of oxygen on work hardening rate and deformation behavior. Yield and ultimate tensile strengths markedly increased with increasing oxygen contents, although the elongations were decreased. Work hardening rate was also enhanced with increasing oxygen contents resulting in increase in the uniform elongation. The improved work hardening rate was ascribed to transition of primary deformation mode from twin deformation to dislocation slip by oxygen addition. When twin deformation is suppressed by oxygen addition, however, the 〈c+a〉 dislocation must function as a substitute for twinning to permit the homogeneous plastic deformation. It contributed that the improved work hardening rate without deformation twinning is thought to be a restriction of dislocation slips to a certain special plane by oxygen addition.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 632, 24 April 2015, Pages 120–126
نویسندگان
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