摘要
为了提高石油钻杆材料42CrMo的硬度及耐磨性能,通过激光熔覆技术制备不同质量分数(0,0.10,0.15,0.20)Fe06+TiC/Mo复合涂层。采用显微硬度仪器、扫描电镜、摩擦磨损试验机进行了显微硬度、耐磨性能、物相组成、磨损行为分析和实验验证,得到的熔覆层主要由α-Fe、Cr-Fe以及(Fe、Ni)固溶体等相组成。结果表明,Fe06+TiC复合涂层硬度平均约1180 HV_(0.2),Fe06+Mo复合涂层硬度平均约893 HV_(0.2);Fe06+TiC复合涂层的磨损量平均约2.97 mg,Fe06熔覆层磨损量为7.8 mg,Fe06+Mo复合涂层的磨损量平均约2.67 mg;Fe06+TiC/Mo复合涂层磨损机理以粘着磨损、磨粒磨损为主,Fe06+0.2TiC熔覆层硬度最高,Fe06+0.2Mo熔覆层耐磨性能最好。该研究为提高42CrMo材料硬度及耐磨性能提供了实践参考。
In order to improve the hardness and wear resistance of oil drilling pipe material 42CrMo,Fe06+TiC/Mo composite coatings with different mass fractions(0,0.10,0.15,0.20)were prepared by laser cladding technique.The microhardness,wear resistance,phase composition,wear behavior,and experimental verification were carried out by microhardness instrument,scanning electron microscope,and friction and wear testing machine.It was found that the cladding layer was mainly composed ofα-Fe,Cr-Fe and(Fe,Ni)solid solution phases.The results show that the average microhardness of Fe06+TiC composite coating about 1180 HV_(0.2),and that of Fe06+Mo composite coating is about 893 HV_(0.2).The average mass loss of Fe06+TiC composite coating is about 2.97 mg,the average mass loss of Fe06 cladding layer is 7.8 mg,and the average mass loss of Fe06+Mo composite coating is about 2.67 mg,respectively.The wear mechanism of Fe06+TiC/Mo composite coating is mainly adhesion wear and abrasive wear.The hardness of Fe06+0.20TiC cladding is the highest,and the wear resistance of Fe06+0.20Mo cladding is the best.This study provides practical reference for improving the hardness and wear resistance of 42CrMo materials.
作者
杨凯欣
孙文磊
肖奇
陈子豪
YANG Kaixin;SUN Wenlei;XIAO Qi;CHEN Zihao(School of Mechanical Engineering,Xinjiang University,Urumqi 830047,China)
出处
《激光技术》
CAS
CSCD
北大核心
2023年第3期393-399,共7页
Laser Technology
基金
新疆维吾尔自治区克拉玛依市科技重大专项资助项目(2018ZD002B)。
关键词
激光技术
耐磨性能
显微硬度
磨损行为
磨损量
laser technique
wear resistance
microhardness
wear behavior
mass loss
