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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.
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 as follows: coalescent force of phase interface, microstructure, and the phase ratio and difference between the mechanical properties of ferrite and austenite. heat treatment and sulphur contents have a not effect 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.