Cr12MoV钢真空热处理组织和性能研究  

Research on Microstructure and Properties of Cr12MoV Steel After Vacuum Heat Treatment

作　　者：邓莉萍[1,2] 罗军明[2] 苏倩[3] 

机构地区：[1]南昌航空大学材料科学与工程研究中心,江西南昌330063 [2]南昌航空大学材料科学与工程学院,江西南昌330063 [3]南昌航空大学分析测试中心,江西南昌330063

出　　处：《热加工工艺》2012年第8期167-169,共3页Hot Working Technology

基　　金：江西省材料科学与工程研究中心资助项目(ZX201001003);南昌市科技攻关项目(2010洪财企95号)

摘　　要：采用固溶双细化处理对Cr12MoV钢进行预备热处理,而后分别进行真空热处理和普通热处理,对其硬度、冲击韧度、抗弯强度、耐磨性进行测定,并观察其显微组织和断口形貌。结果表明:由于组织中碳化物以粒状均匀地分布于基体中,Cr12MoV钢经真空热处理后,材料的冲击韧度、抗弯强度、耐磨性均高于普通热处理。其冲击韧度、抗弯强度分别达到8.347 J.cm-2和1732.6 MPa,相对于普通热处理,分别提高57.6%和16.9%。After solution and double-refine treatment as preheat treatment and vacuum heat treatment or ordinary heat treatment as final heat treatment, the hardness, impact toughness, bending strength, wear resistance, microstrueture and fracture morphology of Crl2MoV steel were studied. The results indicate that with granular carbide evenly distributed in matrix, the impact toughness, bending strength and wear resistance of Crl2MoV steel after vacuum heat treatment are better than those after ordinary heat treatment. After vacuum heat treatment, the impact toughness and bending strength of the samples reach 8.347 J·cm-2 and 1732.6 MPa, respectively. In comparison to the samples with ordinary heat treatment, they increase by 57.6% and 16.9%, respectively.

关 键 词：CR12MOV 真空热处理 组织 性能 

分 类 号：TG162.4[金属学及工艺—热处理]