Impact Factor:6.4
DOI number:10.1016/j.jmrt.2024.03.087
Affiliation of Author(s):中南大学粉末冶金研究院
Teaching and Research Group:高温结构材料研究所
Journal:Journal of Materials Research and Technology
Funded by:中国国家自然科学基金（52074366）
Key Words:Additive manufacturing,Superalloy,Microstructure,Deformation and fracture
Abstract: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.
Co-author:Xiaoqiong Ouyang, Lin Ye, Heng Dong, Xiangyou Xiao, Jie Su, Lan Huang, Feng Liu
First Author:Liming Tan
Indexed by:Article
Discipline:Engineering
Volume:30
Page Number:890-893
ISSN No.:2238-7854
Translation or Not:no