期刊
SCRIPTA MATERIALIA
卷 59, 期 1, 页码 79-82出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2008.02.028
关键词
metastable austenitic stainless steel; ultrafine/nanograined; deformation; structure
The deformation behavior of ultrafine/nanograined (UFG/NG) structures during tensile straining has been examined by electron microscopy in metastable austenitic steels. Special fine-grained structures were obtained by controlled phase-reversion annealing of heavily cold-worked metastable austenite, leading to an excellent tensile strength-ductility combination. Twinning and dislocation glide were identified as the primary deformation mechanisms operating in UFG/NG structures. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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