کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8004562 | 1516656 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of applied pressure on microstructures of squeeze cast Mg-15Gd-1Zn-0.4Zr alloy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Microstructural evolution of Mg-15Gd-1Zn-0.4Zr (GZ151K, wt%) alloys, cast under 0â¯MPa (gravity cast) and 6â¯MPa (squeeze cast), were comparatively studied. It is found that the grain size of squeeze cast GZ151K alloy with applied stress 6â¯MPa is much smaller than that of the gravity cast counterpart. Moreover, the squeezing pressure hinders the transition from β' precipitates to β1 precipitates during subsequent aging process, leading to reduced volume fraction of β1 precipitates in the squeeze cast alloy. Thus, the relatively lower volume fraction of β1 precipitates in the squeeze cast GZ151K results in higher hardness increment and stronger precipitation hardening effect.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnesium and Alloys - Volume 6, Issue 2, June 2018, Pages 197-204
Journal: Journal of Magnesium and Alloys - Volume 6, Issue 2, June 2018, Pages 197-204
نویسندگان
Zhao Qian, Wu Yujuan, Rong Wei, Wang Ke, Yuan Lingyang, Xiangwen Heng, Peng Liming,