Excellent mechanical and corrosion properties of austenitic stainless steel with a unique crystallographic lamellar microstructure via selective laser melting
Scripta Materialia2018Vol. 159, pp. 89–93
Citations Over TimeTop 1% of 2018 papers
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 45inclined 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.
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