کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7989501 | 1515942 | 2018 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Compressive behavior of liquid phase sintered 90â¯W-7Ni-3Fe heavy alloy at high temperature and low strain rate condition
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Compressive behavior of liquid phase sintered 90â¯W-7Ni-3Fe heavy alloy at high temperature and low strain rate condition Compressive behavior of liquid phase sintered 90â¯W-7Ni-3Fe heavy alloy at high temperature and low strain rate condition](/preview/png/7989501.png)
چکیده انگلیسی
The compressive behavior of 90â¯W-7Ni-3Fe heavy alloy prepared by liquid phase sintering is investigated systematically at strain rates 0.001, 0.01 and 0.1â¯sâ1 and temperatures 298, 1073, 1273 and 1473â¯K. Compressive yield strength of the material increases with the increase of strain rate and decreases with the increase of temperature. The compressive deformation is affected by the coupling of work hardening and thermal softening; plastic deformation is dominated by work hardening at 298, 1073 and 1473â¯K below strain 0.5; plastic deformation is dominated by work hardening at 1473â¯K below strain 0.2. The work hardening rate decreases with the increase of strain and then tends to a relatively stable level. Microstructure evolution is sensitive to temperature and strain rate. The mechanical properties of specimen deteriorated significantly and the abnormal growth of W particles occurs at low strain rate (0.001â¯sâ1) and high temperature (1473â¯K). The shear band with angle of about 45° to the compression direction appeared at the corner of samples at 1073â¯K. A large number of defects on phase interface appeared due to inconsistent deformation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Refractory Metals and Hard Materials - Volume 76, November 2018, Pages 149-157
Journal: International Journal of Refractory Metals and Hard Materials - Volume 76, November 2018, Pages 149-157
نویسندگان
Yang Yu, Chaoyuan Ren, Wencong Zhang,