Excellent mechanical and corrosion properties of austenitic stainless steel with a unique crystallographic lamellar microstructure via selective laser melting

By Shi-Hai Sun, Takuya Ishimoto, K. Hagihara, Y. Tsutsumi, T. Hanawa, Takayoshi Nakano. Scripta Materialia, 2019

343 citations recorded by the source corpus.

Abstract We first developed a unique “crystallographic lamellar microstructure” (CLM), in which two differently oriented grains appear alternately, in a 316L stainless steel specimen via selective laser melting technology. The CLM was composed of major 〈011〉 grains and minor 〈001〉 grains aligned along the build direction, which stemmed from vertical and approximately ±45° inclined columnar cells formed in the central and side parts of melt-pools, respectively. The development of CLM was found to largely improve the material properties via the strengthening of the product, simultaneously showing superior corrosion resistance to commercially obtained specimens.

Subfields: Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/d84a0bf94193adb6af288433278b63b1b47a2378

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In Mechanical Engineering

1. E. Jägle
2. M. Laleh
3. Dierk Raabe
4. M. Moyle
5. P. Kürnsteiner
6. A. Kini
7. S. Primig
8. N. Haghdadi

Citations in the corpus

• Steels in additive manufacturing: A review of their microstructure and properties (2020, methodology): “5 c) in 316L, where, <100> and <110> oriented grains along the build direction are present alternately [43].”
• Additive manufacturing of steels: a review of achievements and challenges (2020, background): “transverse and building planes) against various kinds of corrosion, and most of the studies report similar corrosion characteristics in terms of pitting [27, 67, 90] and intergranular [36] corrosion resistances at all planes.”