On the enhanced corrosion resistance of a selective laser melted austenitic stainless steel

By Q. Chao, V. Cruz, Sebastian Thomas, Nick Birbilis, P. Collins, A. Taylor, P. Hodgson, D. Fabijanic. 2017

335 citations recorded by the source corpus.

Abstract Corrosion of stainless steels, including the austenitic Fe-Cr-Ni alloys, is associated with MnS inclusions that provide local sites for corrosion pits. Much research effort has been focused on the role of MnS in corrosion of conventional (cast and wrought) stainless steel to date, including microanalysis of MnS and the surrounding microchemistry. Herein, it was elucidated that an austenitic stainless steel (type 316L) when manufactured through selective laser melting was able to be produced without MnS inclusions and hence with no accompanying Cr-depletion in the vicinity of MnS, resulting in superior corrosion resistance relative to wrought form.

Subfields: Materials Chemistry, Mechanical Engineering, Metals and Alloys

View Paper: https://www.semanticscholar.org/paper/98a977609a52676be152cda5886118d5b74b428d

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In Materials Chemistry

1. E. Jägle
2. Dierk Raabe
3. N. Haghdadi
4. Franz Roters
5. O. A. Zambrano
6. Philip Eisenlohr
7. T. Bieler
8. C. Tasan

In Mechanical Engineering

1. I. Yadroitsava
2. I. Yadroitsev
3. Pavel Krakhmalev
4. E. Jägle
5. Shengmin Guo
6. A. H. Ettefagh
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8. M. Laleh

In Metals and Alloys

1. Dierk Raabe
2. C. Tasan

Citations in the corpus

• Microstructure, Solidification Texture, and Thermal Stability of 316 L Stainless Steel Manufactured by Laser Powder Bed Fusion (2018, methodology): “In [30,31], Mn-Si-Al-O particles with some amounts of Al were investigated by TEM EDX.”
• Additive manufacturing of steels: a review of achievements and challenges (2020, background): “Corros Sci 165:108412 [65] Chao Q, Cruz V, Thomas S, Birbilis N, Collins P, Taylor A,”
• Corrosion performance of additively manufactured stainless steel parts: A review (2020, background): “Also, the shape of the inclusions after the AM process is reported to be spherical versus irregular shapes in conventionally fabricated parts [187].”
• Steels in additive manufacturing: A review of their microstructure and properties (2020, background): “The small oxides/oxynitrides present in the material apparently do not act as pit initiation sites [57].”