不同球化退火工艺对T12A组织与力学性能影响的研究  

Study on Influence of Different Spheroidization Annealing Processes on Microstructure and Mechanical Properties of T12A

作　　者：韩旭 王洪涛[1] 韩子玉 赵伟 王飞 HAN Xu;WANG Hongtao;HAN Ziyu;ZHAO Wei;WANG Fei(Tianjin College,University of Science and Technology Beijing,Tianjin 301830,China)

机构地区：[1]北京科技大学天津学院,天津301830

出　　处：《热加工工艺》2023年第4期116-119,124,共5页Hot Working Technology

基　　金：国家级大学生创新创业训练计划项目(202113898003);天津市教委科研计划项目(2019KJ144);天津市一流本科课程建设项目(YLKC201902);北京科技大学天津学院本科教育教学改革与研究重点项目(TYJY2021002)。

摘　　要：讨论了T12A碳素工具钢球化处理原理与碳化物球化的形成机理,通过典型球化处理试验,优化了球化处理工艺参数。结果表明,采用770℃的复合球化退火工艺后,T12A碳素工具钢的碳化物颗粒分布弥散,晶粒尺度为1.5~1.8μm,硬度为92~94 HRB。获得了具有实用价值的球化处理工艺,对于高效益生产中T12A碳素工具钢的球化处理具有重要参考价值。The spheroidizing treatment principle and carbide spheroidizing mechanism of T12A carbon tool steel were discussed.The spheroidizing treatment parameters were optimized through typical spheroidizing treatment experiments.The results indicate that,after using a compound spherical annealing process of 770℃,the distribution of T12A carbon tool steel is dispersed,the grain size is 1.5-1.8μm,and the hardness is 92-94 HRB.A practical spheroidization process is obtained,which has important reference value for the spheroidization of T12A carbon tool steel in high efficiency production.

关 键 词：T12A碳素工具钢 球化退火 组织 性能 

分 类 号：TG161[金属学及工艺—热处理]