کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
789271 | 1465707 | 2006 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An investigation of the origin of the superplasticity of cast TiAl alloys
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: An investigation of the origin of the superplasticity of cast TiAl alloys An investigation of the origin of the superplasticity of cast TiAl alloys](/preview/png/789271.png)
چکیده انگلیسی
Two high-Cr TiAl alloys, with different compositions of Ti–46Al–8Cr–2Nb–0.15B and Ti–46Al–8Cr–2Nb–0.5W–0.15B (at.%), were studied. Superplastic deformation was observed in these alloys in their cast conditions. The superplastic behavior was attributed to the development of a fine-grained microstructure containing a metastable β phase with heavy alloying of Cr. The fine-grained microstructure is favorable for the occurrence of grain boundary sliding, and the presence of the β phase and its transformation to γ phase during deformation are beneficial to stress relaxation and suppression of cavitation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Plasticity - Volume 22, Issue 8, August 2006, Pages 1530–1548
Journal: International Journal of Plasticity - Volume 22, Issue 8, August 2006, Pages 1530–1548
نویسندگان
J.N. Wang, Yong Wang,