期刊论文

中文

材料热处理学报

1009-6264

2024

45

02

156-163

10.13289/j.issn.1009-6264.2023-0390

:江苏高校青蓝工程资助(苏教师函号) :苏高职培函号(2022QYSJ012) :苏城建院科研团队—新材料创新与可持续应用研究团队 22C0936:湖南省教育厅科学研究一般项目 202213924002:国家级大学生创新创业训练计划项目

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为了提高 304 不锈钢的耐磨减摩性能,采用激光熔覆技术在其表面制备了 Co-2%Ti3SiC2 复合涂层.通过扫描电镜(SEM)、能谱仪(EDS)和X射线衍射仪(XRD)对Co-2%Ti3SiC2 复合涂层的微观结构进行表征,并分析了 304 不锈钢基体与Co-2%Ti3SiC2 复合涂层在等温摩擦实验(25 和 600℃)中不同载荷(2、5 和 8 N)下的摩擦学性能和磨损机理.结果表明:Co-2%Ti3SiC2 复合涂层主要由γ-Co固溶体,硬质相Fe2C、Cr7C3 和TiC及润滑相Ti3SiC2 组成.Co-2%Ti3SiC2 复合涂层的平均显微硬度为 358.61 HV0.5,约是304 不锈钢基体(239.32 HV0.5)的1.5 倍.在等温摩擦实验中,Co-2%Ti3SiC2 复合涂层的磨损率均随着载荷的增加而减少...

In order to improve the resistance and anti-friction performance of 304 stainless steel,a Co-2%Ti3SiC2 composite coating was prepared on its surface by laser cladding technology.Microstructure of the Co-2%Ti3SiC2 composite coating was characterized by means of scanning electron microscopy(SEM),energy dispersive spectroscopy(EDS)analysis and X-ray diffraction(XRD),and the tribological properties and wear mechanism of the 304 stainless steel matrix and Co-2%Ti3SiC2 composite coating under different loads(2,5 and 8 N)in isothermal friction experim...