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- Title
Long-Term Effects of Temperature Exposure on SLM 304L Stainless Steel.
- Authors
Amine, Tarak; Kriewall, Caitlin S.; Newkirk, Joseph W.
- Abstract
Austenitic stainless steel is extensively used in industries that operate at elevated temperatures. This work investigates the high-temperature microstructure stability as well as elevated-temperature properties of 304L stainless steel fabricated using the selective laser melting (SLM) process. Significant microstructural changes were seen after a 400°C aging process for as little as 25 h. This dramatic change in microstructure would not be expected based on the ferrite decomposition studied in conventional 304L materials. The as-built additively manufactured alloy has much faster kinetic response to heat treatment at 400°C. An investigation of the structures which occur, the kinetics of the various transformations, and the mechanical properties is presented. The impact of this on the application of SLM 304L is discussed.
- Subjects
EFFECT of temperature on stainless steel; AUSTENITIC stainless steel; MICROSTRUCTURE; THREE-dimensional printing; STAINLESS steel heat treatment; STEEL alloys; FERRITES
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2018, Vol 70, Issue 3, p384
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-017-2656-4