磨削淬火强化层与高频感应淬火强化层的对比研究  

Study on Comparision of Grinding Hardened Layer with Induction Hardened Layer

作　　者：丛树林[1] 时海芳[2] 姜昕彤[3] 李海玉[2] 孙上茹[4] 刘波[2] 

机构地区：[1]辽宁科技学院,本溪117004 [2]辽宁工程技术大学材料科学与工程学院,阜新123000 [3]辽宁工程技术大学建筑工程学院,阜新123000 [4]辽宁工程技术大学机械工程学院,阜新123000

出　　处：《表面技术》2012年第3期71-72,96,共3页Surface Technology

摘　　要：对42CrMo钢进行磨削淬火和高频感应淬火,对比研究了两种强化层的显微组织、硬度和厚度。结果表明:高频感应淬火强化层的厚度、组织及截面显微硬度分布都较为均匀,组织为细针状的马氏体组织;磨削淬火强化层的厚度不均匀,组织以板条状马氏体为主,由表及里呈现"细→略粗→细"的变化规律,显微硬度高于高频感应淬火强化层。The 42CrMo was treated by grinding hardening and making induction hardening test and the microstructure, hardness and thickness of the two strengthened layers were compared and studied. The results show that the thickness of enhanced induction strengthened layer is uniformity, the structure of strengthened layer and microhardness of ifs cross section are homogeneous, the martensite organization is fine needle-like; And the thickness of grind-harden- ing strengthened layer is uneven, the main martensite organization of strengthened layer is lath-like, and the change rule of the organization is from fine to slightly coarse, then to fine. The change of microhardness is obvious in strengthened layer.

关 键 词：磨削淬火 高频感应淬火 组织 厚度 硬度 

分 类 号：TG156.33[金属学及工艺—热处理]