کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7992854 | 1516150 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structural features and mechanical properties of AZ31 Mg alloy warm-deformed by differential speed rolling
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Structural features and mechanical properties of AZ31 Mg alloy warm-deformed by differential speed rolling Structural features and mechanical properties of AZ31 Mg alloy warm-deformed by differential speed rolling](/preview/png/7992854.png)
چکیده انگلیسی
In this work, we investigated a differential speed rolling (DSR) process as a possible strategy to improve the mechanical properties of AZ31 Mg alloy. For this purpose, the effect of four different routes on microstructure and properties of the alloy were investigated: forward rolling (FR), reverse rolling (RR), turned rolling (TR), turned-reverse rolling (TRR). The microstructure features of the DSR-deformed alloy, including microstructure homogeneity, grain size and grain boundaries revealed that the TR route, in which the sample is rotated 180° around its rolling direction, is the most effective route to obtain an equiaxed, homogenous and fine-grained structure. This was attributed to the intersecting of shear bands during the successive DSR passes. In addition, this route resulted in a weak basal texture. The evolution of such structural features figured out the improved performance, in which a combination of high yield strength (â¼295â¯MPa) and improved ductility (â¼21%) were obtained.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 744, 5 May 2018, Pages 96-103
Journal: Journal of Alloys and Compounds - Volume 744, 5 May 2018, Pages 96-103
نویسندگان
Young Gun Ko, Kotiba Hamad,