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Deformation Induced Martensitic Transformation and Its Initial Microstructure Dependence in a High Alloyed Duplex Stainless Steel
Author(s) -
Xie Lin,
Huang TianLin,
Wang YuHui,
Wu GuiLin,
Tsuji Nobuhiro,
Huang XiaoXu
Publication year - 2017
Publication title -
steel research international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.603
H-Index - 49
eISSN - 1869-344X
pISSN - 1611-3683
DOI - 10.1002/srin.201700169
Subject(s) - austenite , materials science , metallurgy , equiaxed crystals , microstructure , ferrite (magnet) , martensite , diffusionless transformation , duplex (building) , deformation (meteorology) , composite material , dna , biology , genetics
Deformation induced martensitic transformation (DIMT) usually occurs in metastable austenitic stainless steels. Recent studies have shown that DIMT may occur in the austenite phase of low alloyed duplex stainless steels. The present study demonstrates that DIMT can also take place in a high alloyed Fe–23Cr–8.5Ni duplex stainless steel, which exhibits an unexpectedly rapid transformation from γ ‐austenite into α′ ‐martensite. However, an inhibited martensitic transformation has been observed by varying the initial microstructure from a coarse alternating austenite and ferrite band structure to a fine equiaxed microduplex structure.