کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7990497 | 1516129 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Improvement of mechanical property and large shape recovery of sintered Ni45Mn36.6In13.4Co5 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
High mechanical properties Ni45Mn36.6In13.4Co5 magnetic shape memory alloy with preferred orientation were prepared by spark plasma sintering melt-spinning ribbons piled up orderly. Sintered at 1073â¯K, the orientation of grains becomes random. Sintered at 873â¯K, part of the grains grows inhomogeneously and some of the columnar grains are fractured under relatively large compressive pressure. Mechanical properties of Ni-Mn-In-Co alloy are improved significantly by spark plasma sintering the ribbons. The compressive fracture strength and strain of the Ni45Mn36.6In13.4Co5 bulks sintered at 873â¯K are 1200â¯MPa and 14%, which are approximately two times larger than that of ingots as-cast. The improvement of mechanical property can be attributed to the textured microstructure and relatively tiny grains in sintering ingots. It must be mentioned that the alloys sintered at 873â¯K show almost perfect shape memory effect, about 95% compressive strains (as high as 11.4%) was recoverable during heating, and shape recovery is achieved in reverse martensitic transformation process, which predicts a relatively high magnetic field induced strain recovery in polycrystalline.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 765, 15 October 2018, Pages 264-270
Journal: Journal of Alloys and Compounds - Volume 765, 15 October 2018, Pages 264-270
نویسندگان
Yan Feng, Hong Chen, Fei Xiao, Xiaohai Bian, Pan Wang,