摘要
热作模具钢中晶界碳化物的分布形态对其力学性能具有重要影响.通过设计不同热处理工艺,对H13实验钢的基体组织和晶界碳化物进行显微组织观察与分析,探求H13钢晶界网状碳化物的形成原因.实验结果表明,在预设的2种热处理工艺下,实验钢经奥氏体化并炉冷至Ar1附近不同温度后,晶内和晶界碳化物分布情况不同.在此基础上,分析了基体组织形态与网状碳化物的形成与分布规律,提出了H13钢力学性能的影响因素及控制措施.
The distribution of grain boundary carbides in hot working die steel has important influence on its mechanical properties.By designing different heat treatment processes,the microstructure of the matrix structure and grain boundary carbides of H13 experimental steel were observed and analyzed in order to explore the reasons for the formation of H13 steel grain boundary network carbides.The results show that under two pre-designed heat treatment processes,the intragranular and grain boundary carbide distributions are different after austenitizing the experimental steel and cooling it to different temperatures near Ar1.On this basis,The formation and distribution of matrix microstructure and reticulated carbides were analyzed.The influencing factors and control measures of the mechanical properties of H13 steel were put forward.
作者
马飞飞
周晓帆
高启新
段宝玉
杨凡
王海燕
MA Feifei;ZHOU Xiaofan;GAO Qixin;DUAN Baoyu;YANG Fan;WANG Haiyan(Materials and Metallurgy School, Inner Mongolia University of Science and Technology, Baotou 014010, China;Analytical Testing Center, Inner Mongolia University of Science and Technology, Baotou 014010, China)
出处
《内蒙古科技大学学报》
CAS
2020年第4期339-342,共4页
Journal of Inner Mongolia University of Science and Technology
基金
内蒙古自治区自然科学基金资助项目(2018MS05038)
内蒙古自治区科技计划基金资助项目(201803005).
