摘要
以激光熔敷中常用的Ni60A合金粉末和45钢为研究对象,研究了单道与10道熔覆、单层和多层熔覆的所得熔覆层的组织与显微硬度差别。结果表明：10道熔覆层的组织不仅比单道熔覆层更复杂些,而且均匀性也没有单道熔覆层组织好;随着层数的增加,熔覆层的硬度依次降低。
Taking commonly used Ni60 A alloy powder and 45 steel in laser deposition as research object, the difference of microstructure and microhardness of the cladding layers obtained by the single channel and 10-channel cladding, single layer and multilayer cladding. The results show that the microstructure of the 10-channel cladding layer is not only more complicated than that of the single-channel cladding layer, but also the homogeneity of the single-channel cladding layer is not better than that of single-channel cladding layer. With the increase of layers, the hardness of the cladding layer decreases in turn.
作者
刘凌
史崇位
谢燕翔
LIU Ling;SHI Chongwei;XIE Yanxiang(Shaanxi Key Laboratory of Surface Engineering and Remanufacturing, Xi＇an University, Xi＇an 710065, China)
出处
《热加工工艺》
CSCD
北大核心
2018年第10期148-150,155,共4页
Hot Working Technology
基金
西安市科技局重点项目支持(2016CXWL15)
关键词
单道熔覆
多道熔覆
金相组织
显微硬度
single-channel cladding
multi-channel cladding
microstructure
microhardness
