热轧TRIP钢的加工工艺与残余奥氏体形成的关系

Relation between Processing and Retained Austenite Formation of Hot Rolled TRIP-aided Steels

摘要: 低合金TRIP钢的显微组织中残余奥氏体使其具有优良的强度和延性组合。分别介绍了热轧TRIP钢在奥氏体再结晶区、未再结晶区以及临界区变形对残余奥氏体形成的影响。分析了输送台上的冷却和卷取温度对残余奥氏体形成的影响。对低合金TRIP钢残余奥氏体的形成等物理冶金学的研究可以促进该类合金的开发和推广应用。

Abstract: Low alloyed TRIP-aided steels exhibit excellent combination of strength and ductility due to retained austenite present in microstructure.It is described that effect of hot deformation on formation of retained austenite in hot rolled TRIP-aided steels at austenite recrystallization, no-recrystallization region, and intercritical region, respectively.Effect of cooling along ROT and coiling temperature on retained austenite formation is analyzed.Study on physical metallurgy, such as retained austenite formation, of low alloyed TRIP-aided steels may promote its development and application.