Microstructural, electrochemical and wear-corrosion characterization of TC4-5Cu alloy fabricated by selective laser melting

被引：46

作者：

Chen, J. W. ^{[1
]}

Zhang, C. H. ^{[1
]}

Zhou, F. Q. ^{[1
]}

Zhang, S. ^{[1
]}

Chen, H. T. ^{[2
]}

Wang, Q. ^{[3
]}

机构：

[1] Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Liaoning, Peoples R China

[2] Shenyang Dalu Laser Technol CO LTD, Shenyang 110136, Liaoning, Peoples R China

[3] China Med Univ, Sch & Hosp Stomatol, Shenyang 110001, Liaoning, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2021年 / 874卷

基金：

中国国家自然科学基金;

关键词：

TC4-5Cu alloy; Selective laser melting; Corrosion resistance; Wear-corrosion resistance; Microstructure; PHASE EVOLUTION; COATINGS; BEHAVIOR; OPTIMIZATION; RESISTANCE; PROPERTY;

D O I：

10.1016/j.jallcom.2021.159953

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页数：11

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