材料期刊网

Investigation of the Hot Plasticity of Duplex Stainless Steel

LIN Gang , ZHANG Zhixia , SONG Hongwei , TONG Jun , ZHOU Candong

钢铁研究学报(英文版)

Hot plasticity of a nitrogen alloyed 25Cr7Ni4Mo duplex stainless steel was investigated. The results indicate that the main factors affecting the hot plasticity of duplex stainless steel are listed as follows: coalescent force of phase interface, microstructure, and the phase ratio and difference between the mechanical properties of ferrite and austenite. The heat treatment and sulphur contents have a notable effect on the hot plasticity. The reasonable heat treatments and the increased interfacial coalescent force will effectively enhance the hot plasticity of duplex stainless steel.

关键词: duplex stainless steel;hot plasticity;deformation mechanism