کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7971656 | 1514612 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mechanical properties of an aged Ni-Cr-Mo alloy and effect of long-range order phase on deformation behavior
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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: Mechanical properties of an aged Ni-Cr-Mo alloy and effect of long-range order phase on deformation behavior Mechanical properties of an aged Ni-Cr-Mo alloy and effect of long-range order phase on deformation behavior](/preview/png/7971656.png)
چکیده انگلیسی
Mechanical properties of a Ni-Cr-Mo alloy subjected to an aging treatment at 600â¯Â°C and effect of long-range order (LRO) phase on deformation behavior of the alloy are systematically investigated. Results show that peak-aging conditions are reached after 600â¯h of aging at 600â¯Â°C. Meanwhile, the aging treatment at 600â¯Â°C in the aging time range of 100-700â¯h can lead to the precipitation of the coherent Pt2Mo-type LRO phase in the C2000 alloy. Fine scale Pt2Mo-type LRO phase exists in the sample aged for 100â¯h and provides an enhanced yield strength. Because the solution treated sample and the sample aged for 100â¯h show the almost identical strain hardening behaviors, it can be suggested that the ordered structure of the fine scale LRO phase is destroyed during the quite small plastic deformation. Besides, the ordered structure of the relatively large LRO phase is destroyed after the large deformation. Mechanical twinning occurs in the tensile-failed sample which is aged for 500â¯h. And, mechanical twinning is responsible for the high ductility of the alloy aged for more than 100â¯h and the change in the shape of the strain hardening rate vs true strain curve.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 731, 25 July 2018, Pages 29-35
Journal: Materials Science and Engineering: A - Volume 731, 25 July 2018, Pages 29-35
نویسندگان
Wanjun He, Rui Hu, Yang Wu, Xiangyu Gao, Jieren Yang,