坡口尺寸对激光熔覆镍基合金微观组织与力学性能的影响  

Effect of Groove Size on Microstructure and Mechanical Properties of Nickel Alloy by Laser Cladding

作　　者：衣玉兰[1] 

机构地区：[1]新疆交通职业技术学院,新疆乌鲁木齐831401

出　　处：《铸造技术》2015年第12期2892-2894,共3页Foundry Technology

摘　　要：采用激光熔覆工艺将Ni55镍基粉末涂敷到不同坡口尺寸的FV520B基体上,利用光学显微镜、扫描电子显微镜、微观硬度仪和拉伸试验机研究其微观组织与力学性能。结果表明,随着坡口尺寸的增大,熔覆试样的抗拉强度逐渐减小,但其对硬度分布的影响相对较小。The effect of groove size on the microstructure and mechanical properties of nickel alloy was studied by optical microscopy, scanning electron microscopy, microhardness tester, and tensile tester. The results show that the tensile strength of the cladding samples decrease with the increase of groove size, however, the hardness distribution do not change obviously.

关 键 词：激光熔覆 镍基合金 微观组织 力学性能 

分 类 号：TG174.4[金属学及工艺—金属表面处理]