16MnR钢板冷冲压开裂与显微组织的关系  

Relationship of 16MnR Steel Plate Cracking by Stamping and Its Microstructure

作　　者：王淮[1] 程柏松[1] 刘云旭[1] 季长涛[1] 于英杰[1] 董怀雨[1] 

机构地区：[1]长春工业大学材料科学与工程学院,吉林长春130012

出　　处：《金属热处理》2006年第10期15-17,共3页Heat Treatment of Metals

摘　　要：用电子显微镜观察和分析了16MnR钢板冲压裂纹的显微组织。结果表明,开裂的主要原因是显微组织中有贝氏体型(粒状贝氏体、块状反应产物)非平衡组织。该组织在光学显微镜下很难与铁素体加珠光体组织区别。试验结果为预防和解决16MnR钢板冲压开裂提供了理论依据。The microstructure of 16MnR steel plate cracking by stamping was observed and analyzed by SEM. The results show that the main reason for cracking is bainite non-equilibrium structure （granular bainite and massive transformation results） in the microstructure. It is difficult to distinguish such a structure from F ＋ P structure by optical microscope. The results also provide a theoretical basis for preventing and resolving 16MnR steel plate cracking by stamping.

关 键 词：16MnR钢板 显微组织 冲压开裂 

分 类 号：TG142.33[一般工业技术—材料科学与工程] TG162.8[金属学及工艺—金属材料]