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Study on tensile and thermal fatigue behaviors of additively manufactured cobalt-based alloys alloying with Al and Ni
Xudong Yang a , Chuanwei Li a,* , Miao Zhang b , Zhenhua Ye a , Xinyu Zhang a , Mengyao Zheng a , Jianfeng Gu a,**, Haohui Zhu c , Fang Wang d
a Institute of Materials Modification and Modeling, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
b Department of Photoelectric Detection and Guidance System, Shanghai Aerospace Control Technology Institute, Shanghai, 200240, China
c IKD Co., Ltd. Ningbo, 315000, China
d Openlaser Labs, Huzhou RayOpen Research Institute, Huzhou, 313000,
Abstract
The paper explores the effects of Al and Ni on the performances of tensile and thermal fatigue of the additive manufactured cobalt-based alloys. Additions of Al and Ni influence the stacking fault energy, amounts of carbides and oxidation capacity. The 1Al15Ni alloy exhibits the best thermal fatigue resistance and elongation.
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