H13及H13改进型热作模具钢热处理过程中碳化物析出演化行为研究进展  

Research Progress on Carbide Precipitation and Evolution for H13 andH13-Modifies Hot Working Die Steels During Different Heat Treatment Schedules

作　　者：谢奕心 程晓农[1] 鞠玉琳 魏琪 XIE Yixin;CHENG Xiaonong;JU Yulin;WEI Qi(School of Materials Science and Engineering,Jiangsu University,Zhenjiang 212013,Jiangsu,China;School of Aeronautics and Mechanical Engineering,Changzhou Institute of Technology,Changzhou 213032,Jiangsu,China;China Aviation Manufacturing Technology Research Institute,Key Laboratory of Advanced Surface Engineering Technology,Aviation Science and Technology,Beijing 100024,China)

机构地区：[1]江苏大学材料科学与工程学院,江苏镇江212013 [2]常州工学院航空与机械工程学院,江苏常州213032 [3]中国航空制造技术研究院,先进表面工程技术航空科技重点实验室,北京100024

出　　处：《材料导报》2023年第23期173-180,共8页Materials Reports

基　　金：江苏省“双创博士”基金(1711220036);中国航空制造技术研究院基金(KZ521906144)。

摘　　要：航空、轨道交通、汽车等现代制造领域中大部分关键金属零部件的生产与热作模具息息相关,包括模具钢研制在内的模具工业水平的高低目前已成为衡量国家制造业水平的重要标志之一。近年来,工业生产中应用最为广泛的热作模具钢H13及其改进钢种存在两大性能缺陷(等向性差和高温热强性低),其均与碳化物的析出演化密切相关。基于前期科研人员对不同类型碳化物析出演变规律的深入研究,本文总结了在球化退火、高温扩散退火、淬火和回火各不同热处理阶段及凝固过程中H13及其改进型热作模具钢中不同类型碳化物的析出演变机理,分析了碳化物尺寸、数量和分布对材料力学性能的影响,归纳了对材料综合性能具有负面作用的相关碳化物进行调控的措施,对后续H13及其改进型热作模具钢的合金成分优化和热处理工艺改进具有参考价值。The production level of high-end molds plays a significant role in evaluating the manufacturing industry progress for any random country.The manufacturing of most of the key metal parts in aviation,rail transit,automobile fields is closely related to the utilization of hot working die steels.Poor isotropy and low high-temperature-thermal-strength are the two main performance defects for the widely-used H13 and H13-modified steel grades in industry,which are tightly associated with the precipitation and evolution of alloy carbides in these steels during hot processing.This paper has summarized the precipitation mechanism for different types of alloy carbides in H13 and H13-modified hot work die steels during different heat treatment schedules,involving solidification,spheroidizing annealing,high temperature diffusion annealing,quenching and tempering,based on the huge amount of investigations of carbide precipitation in steels by previous researchers.The effects of carbide sizes,quantities and distributions on mechanical properties have been analyzed.In addition,the controlling methods for carbides with a negative effect on materials comprehensive properties have also been concluded.

关 键 词：H13及H13改进型热作模具钢 热处理工艺 碳化物析出演化 力学性能 

分 类 号：TG162[金属学及工艺—热处理]