期刊
CORROSION SCIENCE
卷 207, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2022.110535
关键词
Stainless steel; BSEM; acid corrosion; pitting corrosion; segregation
资金
- US Office of Naval Research
- US Office of Naval Research Global [N62909-18-1-2077]
- Woodside Energy Ltd.
- Australian Research Council through the ARC Industry Transformation Research Hub for Transforming Australia [IH130100008]
The stress corrosion cracking (SCC) of 316L stainless steel manufactured by laser powder bed fusion (LPBF) was investigated. The effects of build orientation and surface roughness on the SCC of LPBF 316L were also examined. LPBF 316L exhibited higher uniform elongation compared to wrought 316L. Specimens tested perpendicular to the build direction showed a greater susceptibility to SCC, with cracks propagating along melt pool boundaries with cellular dissolution. Furthermore, the 'As-built' LPBF 316L specimens with higher surface roughness compared to machined specimens also exhibited greater SCC susceptibility.
The stress corrosion cracking (SCC) of 316L stainless steel manufactured by laser powder bed fusion (LPBF) was investigated by slow strain rate tests in 6 wt% FeCl3. The effects of build orientation and surface roughness on the SCC of LPBF 316L were also investigated. LBPF 316L revealed higher uniform elongation compared to wrought 316L. Specimens tested perpendicular to the build direction showed a greater susceptibility to SCC, with cracks propagating along melt pool boundaries with cellular dissolution. The 'As-built' LPBF 316 L specimens with higher surface roughness compared to machined (smooth-surfaced) LPBF 316L specimens, also revealed greater SCC susceptibility.
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