热等静压机用36CrNi3MoV钢锻件的热处理工艺优化  

Optimization of heat treatment process of 36CrNi3MoV steel forging for hot isostatic pressing machine

作　　者：史浩鹏 张志勇 石如星 陈明 代博杰 孔玉婷 Shi Haopeng;Zhang Zhiyong;Shi Ruxing;Chen Ming;Dai Bojie;Kong Yuting(Luoyang CITIC HIC Casting&Forging Co.,Ltd.,Luoyang Henan 471000,China;CITIC Heavy Industry Co.,Ltd.,Luoyang Henan 471000,China)

机构地区：[1]洛阳中重铸锻有限责任公司,河南洛阳471000 [2]中信重工机械股份有限公司,河南洛阳471000

出　　处：《金属热处理》2025年第2期166-172,共7页Heat Treatment of Metals

基　　金：河南省重大科技专项(221100230200)。

摘　　要：研究了淬火温度、冷却方式、回火温度对热等静压机用36CrNi3MoV钢锻件组织和力学性能的影响。结果表明,在770~860℃水淬,600℃回火时,得到的组织为回火索氏体,随淬火温度的升高,其强度增大,冲击性能和塑性降低;采用不同冷却方式淬火时,水淬的组织最均匀,比油淬的强度略高;在580~620℃范围内回火时,随着回火温度的提高,其强度降低,冲击性能和塑性提高。36CrNi3MoV钢锻件的最佳热处理工艺为830~860℃水淬+600℃回火,可以获得符合NB/T 47008—2017和设计要求的力学性能。Effects of quenching temperature,cooling method and tempering temperature on microstructure and mechanical properties of the 36CrNi3MoV steel forging for hot isostatic pressing machine were studied.The results show that when quenched between 770-860℃and tempered at 600℃,the obtained microstructure is tempered martensite.With the increase of quenching temperature,the strength increases,while the impact property and plasticity decrease.When quenched with different cooling methods,the water quenched microstructure is the most uniform.The strength of water quenched steel is slightly higher than that of oil quenched.When tempered in the range of 580-620℃,with the increase of tempering temperature,the strength decreases,but the impact property and plasticity increase.The optimal heat treatment process consists of austenitizing in the range of 830-860℃,water quenching and then tempering at 600℃,which can achieve mechanical properties that meet the design requirements and NB/T 47008-2017.

关 键 词：热等静压机 36CrNi3MoV钢 调质处理 力学性能 

分 类 号：TG142.1[一般工业技术—材料科学与工程]