期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 874, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2021.159953
关键词
TC4-5Cu alloy; Selective laser melting; Corrosion resistance; Wear-corrosion resistance; Microstructure
资金
- National Natural Science Foundation of China [51871050]
- Natural Science Foundation Project of Liaoning Province [2020MS150, 2018225059]
- Shenyang Science and Technology Funded Project [RC190290]
This paper successfully prepared TC4-5Cu alloy samples using SLM technology to investigate the influence of different laser energy densities. The results showed that with the decrease of laser energy density, the grain size of the samples reduced, and more low-angle grain boundaries were observed.
Additive manufacturing TC4-5Cu alloy has huge potential application prospects in the field of biomedicine. In this paper, the TC4-5Cu alloys with potential for biomedical applications under different laser energy densities were successfully prepared using selective laser melting (SLM) technology, aiming at investigating the effect of laser energy densities on the microstructure, hardness, electrochemical corrosion and wear-corrosion behavior. The as-SLMed TC4-5Cu alloy samples were mainly composed of alpha-Ti and a small amount of Ti2Cu. The proportion of small-sized grains in as-SLMed TC4-5Cu alloy samples increases as the laser energy density decreases. Moreover, a large number of low-angle grain boundaries were observed in as-SLMed TC4-5Cu alloy samples. The results of electrochemical corrosion and wear-corrosion tests show that the electrochemical corrosion resistance and wear-corrosion resistance of as-SLMed TC4-5Cu alloy samples decrease with the decrease of laser energy density. (C) 2021 Elsevier B.V. All rights reserved.
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