高温形变对奥氏体珠光体转变的影响  

Effect of High Temperature Deformation on Austenite/pearlite Transformation

作　　者：王泾文[1] 

机构地区：[1]安徽机电学院机械系,安徽芜湖241000

出　　处：《热加工工艺》1999年第5期24-25,共2页Hot Working Technology

摘　　要：选用共析碳钢，研究了奥氏体区预变形对随后的奥氏体珠光体转变的影响。结果表明，由于奥氏体的预变形，奥氏体珠光体转变过程明显被加速，珠光体的形核部位由未变形时的晶界形核方式为主逐步发展到晶界、晶内同时形核。转变后的组织较未变形的明显细化。变形的影响在变形量为峰值应变量（应力达到峰值时对应的应变量）时表现最为突出。Effect of deformation of austenite on austenite/pearlite transformation were studied with T8 steel .The results show that,because of pre deformation,the transformation of austenite/pearlite is speeded up clearly.The nucleation is both at original boundaries and within the deformed grains.The transformation productpearlite structure is extremely thinned by deformation especially at top strain.

关 键 词：高温形变 奥氏体 珠光体 相变 

分 类 号：TG156.93[金属学及工艺—热处理] TG151[金属学及工艺—金属学]