Optimized hot workability of a powder metallurgy nickel-base superalloy
发布时间：2019-02-15
点击次数：
影响因子：4.7
DOI码：10.1016/j.matchar.2018.11.023
所属单位：中南大学粉末冶金研究院
教研室：高温结构材料研究所
发表刊物：Materials Characterization
项目来源：中国国家重点研究与发展计划（2016YFB0701404），中国国家自然科学基金（NSFC）（51401242），广东省创新和企业家团队介绍（201301G0105337290），中南大学科学研究创业资金（202045001）
关键字：Nickel-base superalloy, Powder metallurgy, Hot workability, Processing map
摘要：Optimizing hot workability and processing parameters of the difficult-to-work powder metallurgy (P/M) superalloy is critical to obtain a desired component through thermo-mechanic processing (TMP). In this study, a P/M superalloy with tailored grain structure and gamma' particle was prepared through atomization and hot isostatic pressing, then thermal compression tests were performed to evaluate its hot workability based on processing maps and microstructure evolution. Considering the friction and temperature variations during deformation, the flow data were corrected via an integrated method, to construct dependable processing maps. The results illustrated that the P/M superalloy prepared by the modified processing method presents superior hot workability, comparing with the P/M superalloys produced by different routes.
合写作者：Yunping Li, Guoai He, Yan Nie, Liang Jiang
第一作者：谭黎明
论文类型：Article
通讯作者：Feng Liu
学科门类：工学
一级学科：冶金
卷号：147
页面范围：340-352
ISSN号：1044-5803
是否译文：否
发表时间：2019-02-15