摘要
通过成分设计、铸造试块制备及热处理试验,研究了热处理参数对ZG42Cr2Ni2Mo齿轮钢的硬度、组织和性能的影响。结果表明,经870℃油淬和560℃回火后,ZG42Cr2Ni2Mo钢试块硬度可达到HB 350以上,满足HB 340~380硬度要求;试块淬火及回火后为均匀回火索氏体组织,晶粒细小均匀;试块热处理后,屈服强度和抗拉强度分别可达到900MPa和1 000 MPa以上,且韧性优良。
The influences of heat treatment parameters on the hardness, microstructure and properties of ZG42Cr2Ni2Mo gear steel were studied by means of composition design, preparation of cast blocks and heat treatment tests. The results showed that after oil quenching at 870 ℃ and tempering at 560 ℃, the hardness of the ZG42Cr2Ni2Mo steel test block reached more than HB 350 and met the requirements of HB 340-380 hardness. After quenching and tempering, the test block had uniform tempered soxite microstructure with fine and uniform grain. After heat treatment, the yield strength and tensile strength of the test block reached 900 MPa and 1 000 MPa respectively, and the toughness was excellent.
作者
瞿铁
庞庆海
贾冠飞
殷立涛
王文焱
田磊
QU Tie;PANG Qing-hai;JIA Guan-fei;YIN Li-tao;WANG Wen-yan;TIAN Lei(CITIC Heavy Industries Co.,Ltd.,Luoyang 471003,Henan,China;State Key Laboratory of Intelligent Mining Heavy Equipment,Luoyang 471000,Henan,China;Luoyang CITIC HIC Casting and Forging Co.,Ltd.,Luoyang 471003,Henan,China;Henan University of Science and Technology,Luoyang 471000,Henan,China)
出处
《铸造》
CAS
北大核心
2023年第1期28-32,共5页
Foundry
基金
国家重点研发计划资助(2020YFB2008400)。
关键词
铸造齿轮
材料设计
高硬度
热处理
cast gear
material design
high hardness
heat treatment
