Unexpected erosion-corrosion behaviour of 316L stainless steel produced by selective laser melting

被引：94

作者：

Laleh, Majid ^{[1
,2
]}

Hughes, Anthony E. ^{[2
,3
]}

Xu, Wei ^{[1
]}

Gibson, Ian ^{[1
]}

Tan, Mike Y. ^{[1
,2
]}

机构：

[1] Deakin Univ, Fac Sci & Technol, Sch Engn, Geelong Waurn Ponds Campus, Waurn Ponds, Vic 3216, Australia

[2] Deakin Univ, Inst Frontier Mat, Geelong Waurn Ponds Campus, Waurn Ponds, Vic 3216, Australia

[3] CSIRO, Private Bag 10, Clayton, Vic 3169, Australia

来源：

CORROSION SCIENCE | 2019年 / 155卷

关键词：

Stainless steel; Selective laser melting; Erosion-corrosion; Repassivation; Electrochemical calculation; ENHANCED CORROSION; SLURRY EROSION; MICROSTRUCTURE; AUSTENITE;

D O I：

10.1016/j.corsci.2019.04.028

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The erosion-corrosion behaviour of a near fully dense 316L stainless steel (316L SS), with relative density higher than 99.5%, produced by selective laser melting (SLM) has been evaluated, for the first time, in a jet impingement system. Although the SLM-produced 316L SS possessed superior pitting corrosion resistance and higher hardness, unexpectedly, it has shown lower erosion-corrosion resistance than its conventionally produced commercial counterpart. This behaviour has been related to weaker repassivation ability of the SLM-produced 316L SS mainly due to the presence of the SLM process-induced pores within the specimen.

引用

页码：67 / 74

页数：8

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