Synchronously enhanced printability and properties of additively manufactured nickel-based superalloys via alloying minor Sc
点击次数：
影响因子：
6.4
DOI码：
10.1016/j.jmrt.2024.03.087
所属单位：
中南大学粉末冶金研究院
发表刊物：
Journal of Materials Research and Technology
项目来源：
中国国家自然科学基金（52074366）
关键字：
Additive manufacturing,Superalloy,Microstructure,Deformation and fracture
摘要：
As major forming elements of γ′ strengthening phase, Al and Ti are critical for achieving superior properties of Ni-based superalloy. However, Al + Ti over 6 wt% leads to poor printability and cracking during additive manufacturing. In this work, the printability and properties of a nickel-based superalloy with Al + Ti reaching 7 wt% is synchronously improved via alloying minor Sc, the mechanism behind that is revealed by investigating the effects of Sc on the grain size, precipitation, and tensile fracture behavior of that nickel-based superalloy. This work provides a promising alternative method for optimizing the performance of superalloys prepared by additive manufacturing.
合写作者：
Xiaoqiong Ouyang, Lin Ye, Heng Dong, Xiangyou Xiao, Jie Su
第一作者：
谭黎明
论文类型：
Article
通讯作者：
Lan Huang, Feng Liu
学科门类：
工学
一级学科：
冶金
卷号：
30
页面范围：
890-893
ISSN号：
2238-7854
是否译文：
否
学位：博士学位
职称：副研究员
学科：材料科学与工程
所在单位：粉末冶金研究院