Journal
MATERIALS CHARACTERIZATION
Volume 60, Issue 11, Pages 1220-1223Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.matchar.2009.04.014
Keywords
Martensite reversion; Nano/submicron grain structure; Austenitic stainless steels; Thermomechanical treatment
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The martensite to austenite reversion behavior of 90% cold rolled AISI 301 stainless steel was investigated in order to refine the grain size. Cold rolled specimens were annealed at 600-900 degrees C, and subsequently characterized by scanning electron microscopy, X-ray diffraction, Feritscope, and hardness measurements. The effects of annealing parameters on the formation of fully-austenitic nano/submicron grained structure and the mechanisms involved were studied. it was found that annealing at 800 degrees C for 10 s exhibited the smallest average austenite grain size of 240 +/- 60 nm with an almost fully-austenitic structure. (C) 2009 Elsevier Inc. All rights reserved.
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