کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1584271 | 1514898 | 2007 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of thermo-mechanical treatment on the microstructure and mechanical properties of a Mg-6Gd-2Nd-0.5Zr alloy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of thermo-mechanical treatment on the microstructure and mechanical properties of a Mg-6Gd-2Nd-0.5Zr alloy Effect of thermo-mechanical treatment on the microstructure and mechanical properties of a Mg-6Gd-2Nd-0.5Zr alloy](/preview/png/1584271.png)
چکیده انگلیسی
Thermo-mechanical treatments, through combined action of cold or hot work and heat treatment, were performed on a Mg-6Gd-2Nd-0.5Zr alloy to investigate their effect on the microstructure and mechanical properties of the alloy. Cold deformation of 5 or 10% between homogenization and aging produced high density of twins and dislocations in as-quenched alloys, and caused acceleration in age-hardening response at 200 °C. Cold-deformed and peak-aged alloys exhibited higher strength and lower elongation than those of peak-aged cast alloy. Alloys subjected to hot extrusion at 450 or 350 °C showed very fine grains, and meanwhile maintained a considerable supersaturation in matrix, leading to a significant age-hardening response at 200 °C. Hot extrusion and aging brought about an overall improvement in mechanical properties, and the best combination of strength and ductility was achieved for alloy after extrusion at 350 °C and aging at 200 °C for 24 h, namely ultimate tensile strength = 381 MPa, tensile yield strength = 273 MPa and elongation = 17.6%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volumes 454â455, 25 April 2007, Pages 314-321
Journal: Materials Science and Engineering: A - Volumes 454â455, 25 April 2007, Pages 314-321
نویسندگان
K.Y. Zheng, J. Dong, X.Q. Zeng, W.J. Ding,