摘要
对H13钢分别进行低温渗硼和高温渗硼+真空淬火+回火处理,研究了不同表面处理工艺下H13钢渗硼层的显微组织、硬度、物相组成及其抗热熔损性能。结果表明:经渗硼处理后,H13钢表面形成了一层连续致密的硼化物层,其硬度约为1500HV;低温渗硼层厚度约为5μm,由Fe2B、FeB和Fe3(C,B)相组成,高温渗硼层厚度约为35μm,由单相Fe2B组成;未渗硼、低温渗硼和高温渗硼试样的失重量和失重率依次减少,高温渗硼试样的抗熔损性能优于低温渗硼试样的抗熔损性能。
H13 steel was treated with low temperature boriding and high temperature boriding+quenching+aging,and the microstructure,hardness,phase composition and soldering resistance of H13 steel boriding layer under different surface treatment processes were studied.The results show that after boriding,a continuous dense boriding layer was formed on the H13 steel surface,and the hardness of which was about 1500 HV.The thickness of the low-temperature boriding layer was about 5μm,consisting of Fe2B,FeB and Fe3(C,B)phases,and the thickness of the high-temperature boriding layer was about 35μm,consisting of single-phase Fe2B.The weight loss and weight loss rate of non-boronized,low-temperature boronized and high-temperature boronized samples were successively reduced,and the soldering resistance of high-temperature boronized sample was better than that of lowtemperature boronized sample.
作者
李金平
王建锋
王攀
LI Jinping;WANG Jianfeng;WANG Pan(General Motors China Science Laboratory,Shanghai 201206,China)
出处
《机械工程材料》
CAS
CSCD
北大核心
2020年第S02期29-33,共5页
Materials For Mechanical Engineering
关键词
H13钢
低温渗硼
高温渗硼
抗熔损性能
H13 steel
low temperature boriding
high temperature boriding
soldering resistance
