کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5459208 | 1516179 | 2017 | 27 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microstructure-dependent mechanical properties of semi-solid copper alloys
ترجمه فارسی عنوان
خواص مکانیکی وابسته به میکرو سازنده آلیاژهای نیمه جامد مس
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کلمات کلیدی
نیمه جامد، فعال شدن ذوب ناشی از فشار، چرخش روتاری، خواص الستو پلاستیکی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
چکیده انگلیسی
Rotary swaging strain induced melt activation (RSSIMA) method is proposed to fabricate semi-solid copper alloys. The micro-grains size evolution of the globular particles during isothermal heat treatments is described by the Lifshize-Slorovitze-Wagner (LSW) equation and mechanical behaviors of semi-solid copper alloys and as-cast copper alloys are analyzed with the power-law Holloman work-hardening model. The effects of microstructure alteration on elasto-plastic properties of semi-solid tin copper alloys are reported. It has been discovered that the stiffness and strength of the alloy samples increase as micro-grain sizes decrease, whereas the alloys originated from various isothermal heat treatments. The strength of the semi-solid samples with globular micro-grains is also discovered to be higher than the strength of as-cast copper with dendrite micro-grains. These enhancements in mechanical properties can be understood by fine-grain mechanisms and precipitation strengthening of the second phase based on microscopy observations. These results can be essential for applications of semi-solid metal alloys.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 715, 25 August 2017, Pages 413-420
Journal: Journal of Alloys and Compounds - Volume 715, 25 August 2017, Pages 413-420
نویسندگان
Miao Cao, Zhao Wang, Qi Zhang,