Intergranular Corrosion of Feedstock Modified—Additively Manufactured Stainless Steel After Sensitization-Reference-Cited by-同舟云学术

Intergranular Corrosion of Feedstock Modified—Additively Manufactured Stainless Steel After Sensitization

Published:2023-04-09 Issue:6 Volume:79 Page:624-636
ISSN:0010-9312
Container-title:Corrosion
language:en
Short-container-title:

Author:

Vukkum Venkata Bhuvaneswari¹^ORCID,Delvecchio Evan¹^ORCID,Christudasjustus Jijo¹²,Storck Steven³,Gupta Rajeev Kumar¹^ORCID

Affiliation:

1. *Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27606.

2. **Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354.

3. ***Research and Exploratory Development Department, the Johns Hopkins University Applied Physics Laboratory (JHU/APL), Laurel, Maryland 20723.

Abstract

Laser powder bed fusion (LPBF), a metal additive manufacturing technique, was conducted on feedstock-modified 316L stainless steel (316L) powder produced by ball-milling of commercial 316L and 1 wt% additive (cerium oxide—CeO2, lanthanum (III) nitrate hexahydrate—La(NO3)3·6H2O, and chromium nitride—CrN). The feedstock-modified LPBF-316L specimens were sensitized at 675°C for 24 h, and the influence of additives on intergranular corrosion (IGC) was investigated following ASTM G108-94 and A262-14 standards. The LPBF-316L with La(NO3)3·6H2O showed higher IGC resistance. The microstructure of the LPBF specimen was investigated and correlated to understand the improved IGC resistance of LPBF-316L with La(NO3)3·6H2O additive.

Publisher

Association for Materials Protection and Performance (AMPP)

Subject

General Materials Science,General Chemical Engineering,General Chemistry

Link

https://meridian.allenpress.com/corrosion/article-pdf/79/6/624/3223976/4245.pdf

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4. Enhanced corrosion resistance of additively manufactured stainless steel by modification of feedstock

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