کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1581258 | 1514857 | 2009 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phase transformation and mechanical behavior of TiFeCoNi alloy during annealing
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Adding Ti to FeCoNi alloy modified its microstructure to a two-phased dendritic microstructure, improving its mechanical properties. The phases in the as-cast TiFeCoNi alloy were hard ordered HCP dendrites and soft ordered FCC-interdendrite matrix. Annealing at 1000 °C did not alter the HCP-dendrite structure, but decomposed the FCC-interdendritic matrix and reduced its degree of order. Experimental results indicate that the internal stress due to casting is released in the initial stage of annealing. Then, the phase transformation increases both the ultimate compressive strength and the plastic strain. The TiFeCoNi alloy that was annealed at 1000 °C for 24 h had excellent mechanical properties-a yield strength of 1.33 GPa, an ultimate compressive strength of 2.6 GPa and a plastic strain of 20%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 501, Issues 1â2, 15 February 2009, Pages 81-86
Journal: Materials Science and Engineering: A - Volume 501, Issues 1â2, 15 February 2009, Pages 81-86
نویسندگان
Chun-Huei Tsau,