کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1623680 | 1516409 | 2009 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Work-softening and anneal-hardening behaviors in fine-grained Zn–Al alloys
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this study work-softening and anneal-hardening behaviors were explored and compared in fine-grained Zn–22 Al and Zn–22 Al–0.3 Cu alloys. It was found that the work-softening behavior is enhanced by a decrease in grain size and an increase in the relative amount of high-angle boundaries. A model based on the absorption of dislocation pile-up by grain boundary is proposed to explain the work-softening behavior in these alloys. When subjected to a grain-coarsening heat treatment, ultra-fine-grained Zn–Al and Zn–Al–Cu alloys exhibit an unusual anneal-hardening behavior. But once their grain size exceeds a critical value, the Zn–Al and Zn–Al–Cu alloys resume the normal anneal-softening behavior.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 468, Issues 1–2, 22 January 2009, Pages 230–236
Journal: Journal of Alloys and Compounds - Volume 468, Issues 1–2, 22 January 2009, Pages 230–236
نویسندگان
Chih-Fu Yang, Jiun-Hung Pan, Te-Hao Lee,