2013•Cailiao gongchengOpen access
Stability of Retained Austenite of Low Si Containing Al TRIP Steel During Deformation
Ding We
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Abstract
Retained austenite(RA)evolution during deformation of low Si TRIP steel was studied by pre-tension test,and relationship of stability of retained austenite during deformation with work hardening exponent n was established.Different heat treatment processes were designed in order to acquire TRIP steel with different incipient retained austenite or different microstructures,and then stability of retained austenite of the TRIP steel was analyzed.The results show that,as the progressing deformation the stability of retained austenite increases,the work hardening performance gets better and the stability of retaining austenite during deformation also increases with the increasing of initial carbon content.The stability of retaining austenite is influenced by the carbon content and distribution of retained austenite as well as surrounding phases.