Corrosion of metallic materials fabricated by selective laser melting

被引：211

作者：

Kong, Decheng ^{[1
]}

Dong, Chaofang ^{[1
]}

Ni, Xiaoqing ^{[2
]}

Li, Xiaogang ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Beijing Adv Innovat Ctr Mat Genome Engn, Key Lab Corros & Protect MOE, Beijing 100083, Peoples R China

[2] Shanghai Res Inst Mat, Shanghai Engn Res Ctr 3D Printing Mat, Shanghai 200437, Peoples R China

来源：

NPJ MATERIALS DEGRADATION | 2019年 / 3卷 / 01期

基金：

中国国家自然科学基金;

关键词：

316L STAINLESS-STEEL; ENTROPY ALLOY PROCESSABILITY; IN-VITRO BIOCOMPATIBILITY; NICKEL-BASED SUPERALLOY; MELTED TI-6AL-4V ALLOY; SUB-GRAIN STRUCTURE; MECHANICAL-PROPERTIES; HEAT-TREATMENT; SURFACE-ROUGHNESS; PITTING CORROSION;

D O I：

10.1038/s41529-019-0086-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Additive manufacturing is an emerging technology that challenges traditional manufacturing methods. However, the corrosion behaviour of additively manufactured parts must be considered if additive techniques are to find widespread application. In this paper, we review relationships between the unique microstructures and the corresponding corrosion behaviour of several metallic alloys fabricated by selective laser melting, one of the most popular powder-bed additive technologies for metals and alloys. Common issues related to corrosion in selective laser melted parts, such as pores, molten pool boundaries, surface roughness and anisotropy, are discussed. Widely printed alloys, including Ti-based, Al-based and Fe-based alloys, are selected to illustrate these relationships, and the corrosion properties of alloys produced by selective laser melting are summarised and compared to their conventionally processed counterparts.

引用

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