期刊
MATERIALS TODAY COMMUNICATIONS
卷 26, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.mtcomm.2020.101921
关键词
Nickel-base ODS alloys; Mechanical alloying; Bimodal grain size; Microstructure; Strength; Ductility
资金
- National Key Research and Development Program of China [2016YFB0701404]
- Natural Science Foundation of China [91860105]
- project of Innovation and Entrepreneur Team Introduced by Guangdong Province [201301G0105337290]
- Special Funds for Future Industrial Development of Shenzhen [HKHTZD20140702020004]
- China Postdoctoral Science Foundation [2019M662799]
Two nickel-base oxide dispersion strengthened (ODS) alloys with uniform and bimodal distribution of grains size were fabricated by mechanical alloying (MA) and hot extrusion (HEX). The bimodal-grained alloy showed a better combination of strength and ductility compared to the alloy with uniform grains size.
Two nickel-base oxide dispersion strengthened (ODS) alloys with uniform and bimodal distribution of grains size were fabricated by mechanical alloying (MA) and hot extrusion (HEX) in this work. The effects of grain size distribution on the tensile properties from ambient temperature to 1000 degrees C was comprehensively studied. The results of microstructure characterization indicated that high density of nanosized particles and dislocation were formed in both nickel-base ODS alloys. Moreover, the strength of nickel-base ODS alloy was mainly derived from grain boundary strengthening, dislocation strengthening and precipitation strengthening. Comparing to the alloy with uniform grains size, the bimodal-grained nickel-base ODS alloy owned prior combination of strength and ductility.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据