激光技术Issue(1)：39-45,7.DOI:10.7510/jgjs.issn.1001-3806.2015.01.008
35 CrMo激光熔覆铁基合金与镍基合金涂层性能比较
Comparison between laser cladding Fe-based and Ni-based alloy coatings on 35CrMo
宋新华 1邹宇峰 2邢家坤 3李维逸4
作者信息
- 1. 张家界航空工业职业技术学院航空制造工程系，张家界427000
- 2. 湖南大学 汽车车身先进设计制造国家重点实验室，长沙410082
- 3. 北汽 广州 汽车有限公司，广州511300
- 4. 湖南大学 汽车车身先进设计制造国家重点实验室，长沙410082
- 折叠
摘要
Abstract
In order to study the laser cladding Fe-based and Ni-based alloy coatings on 35CrMo motor spindle, 3540 Fe-based and Ni00 Ni-based modified coating alloy coatings were prepared on the surface of 35CrMo motor spindle with CO2 laser.After the initial satisfaction of engineering applications, hardness of the modified coating materials at a selected cross-section were tested in both the horizontal and vertical direction,while the metallographic properties were studied by applying etching liquids.The results show that near the junction of the cladding zone and the fusion zone, both hardness of the two cladding materials are about 640HV, which meet the engineering application.Both of the two kinds of the coating materials are better than the base material in terms of corrosion resistance.Microstructures are significant different from the laser clad zone to the fusion zone.The grains become smaller and smaller in size and the Ni-based materials is better than Fe-based materials in corrosion resistance.Comprehensive comparison shows that Ni00 cladding material is better than 3540 material in meeting engineering application.关键词
激光技术/激光熔覆/3540铁基合金/Ni00镍基合金/硬度/组织Key words
laser technique/laser cladding/3540 Fe-based alloy/Ni00 Ni-based alloy/hardness/microstructure分类
矿业与冶金引用本文复制引用
宋新华,邹宇峰,邢家坤,李维逸..35 CrMo激光熔覆铁基合金与镍基合金涂层性能比较[J].激光技术,2015,(1):39-45,7.
