TY - JOUR
T1 - Microstructure development by thermomechanical processing in duplex stainless steel
AU - Maki, T.
AU - Furuhara, T.
AU - Tsuzaki, K.
PY - 2001
Y1 - 2001
N2 - In the case of two-phase alloys, a refinement matrix phase and a uniform distribution of second phase are important to improve mechanical properties. In this paper, microstructure change of α (ferrite)+γ (austenite) two-phase structure, especially microduplex structure consisting of α and γ in a fine-grained form (1-3μm), in the duplex stainless steel by various thermomechanical processings and heat treatments is briefly reviewed. Main topics are as follows, 1) formation process of fine-grained α+γ structure (microduplex structure) by various thermomechanical processings, 2) nature of microduplex structure and its stability during prolonged aging, 3) microstructure change of microduplex structure by annealing after heavy cold rolling and 4) microstructure change of microduplex structure during superplastic deformation.
AB - In the case of two-phase alloys, a refinement matrix phase and a uniform distribution of second phase are important to improve mechanical properties. In this paper, microstructure change of α (ferrite)+γ (austenite) two-phase structure, especially microduplex structure consisting of α and γ in a fine-grained form (1-3μm), in the duplex stainless steel by various thermomechanical processings and heat treatments is briefly reviewed. Main topics are as follows, 1) formation process of fine-grained α+γ structure (microduplex structure) by various thermomechanical processings, 2) nature of microduplex structure and its stability during prolonged aging, 3) microstructure change of microduplex structure by annealing after heavy cold rolling and 4) microstructure change of microduplex structure during superplastic deformation.
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U2 - 10.2355/isijinternational.41.571
DO - 10.2355/isijinternational.41.571
M3 - Review article
AN - SCOPUS:0034893021
VL - 41
SP - 571
EP - 579
JO - Transactions of the Iron and Steel Institute of Japan
JF - Transactions of the Iron and Steel Institute of Japan
SN - 0915-1559
IS - 6
ER -