Synchronously enhanced printability and properties of additively manufactured nickel-based superalloys via alloying minor Sc
发布时间：2024-05-15
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
教研室：高温结构材料研究所
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, Lan Huang, Feng Liu
第一作者：谭黎明
论文类型：Article
学科门类：工学
卷号：30
页面范围：890-893
ISSN号：2238-7854
是否译文：否
发表时间：2024-05-15