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

被引：86
|
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
收藏
页码：67 / 74
页数：8
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