激光熔覆WC梯度耐磨涂层的制备与摩擦磨损性能研究

傅硕, 许爱军, 徐雅欣, 朱丽娟, 娄丽艳, 李文亚

doi:10.16577/j.issn.1001-1560.2025.0058

材料保护 >

2025 , Vol. 58 >Issue 4: 40 - 47

DOI: https://doi.org/10.16577/j.issn.1001-1560.2025.0058

第14届全国青年表面工程学术会议专栏

激光熔覆WC梯度耐磨涂层的制备与摩擦磨损性能研究

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¹西北工业大学凝固技术国家重点实验室陕西省摩擦焊接工程技术重点实验室； ²长沙五七一二飞机工业有限责任公司； ³中国石油集团工程材料研究院有限公司石油管材及装备材料服役行为与结构安全国家重点实验室； ⁴西安交通大学材料科学与工程学院金属材料强度国家重点实验室

徐雅欣(1985－)，副教授，博士，主要从事材料的腐蚀、防护涂层制备与性能等方面研究，电话:15710443557，E-mail:xu.yaxin＠nwpu.edu.cn

收稿日期: 2024-09-10

修回日期: 2024-09-23

录用日期: 2024-09-25

网络出版日期: 2025-05-23

基金资助

国家重点研发计划(2021YFB3200500)；西北工业大学凝固国家重点实验室项目(2021-TZ-01)；西北工业大学分析测试中心项目(No.2021T013)

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Preparation and Friction and Wear Properties of WC Gradient Wear-Resistant Coating by Laser Cladding

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(1.Shaanxi Key Laboratory of Friction Welding Technologies， State Key Laboratory of Solidification Processing， Northwestern Polytechnical University， Xi’an 710072， China； 2.Changsha 5712 Aircraft Industry Co.， Ltd.， Changsha 410114， China；3.State Key Laboratory for Service Behavior and Structural Safety of Petroleum Pipes and Equipment Materials， China Petroleum Engineering Materials Research Institute Co.， Ltd.， Xi’an 710065， China； 4.State Key Laboratory of Metal Material Strength，School of Materials Science and Engineering， Xi’an Jiaotong University， Xi’an 710049， China)

XU Yaxin(1985－)， Associate Professor， Ph.D.， Research Focus: Research on Corrosion of Materials， Preparation and Properties of Coatings， Tel.: 15710443557， E-mail: xu.yaxin＠nwpu.edu.cn

Received date: 2024-09-10

Revised date: 2024-09-23

Accepted date: 2024-09-25

Online published: 2025-05-23

Supported by

National Key Research and Development Program of China (2021YFB3200500)； State Key Laboratory of Solidification Processing (NPU， China) (2021 - TZ - 01)； Analytical and Testing Center of Northwestern Polytechnical University(No.2021T013)

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摘要

钛合金在超深井钻探领域具有广阔的应用前景。为提高钛合金钻杆表面耐磨性，采用激光熔覆技术制备了WC 梯度耐磨涂层。使用OM、SEM、EMPA、XRD、硬度机、摩擦磨损试验机及白光干涉扫描仪研究了梯度耐磨涂层的显微组织、相组成、元素分布、力学性能及摩擦磨损性能。结果表明，梯度耐磨涂层物相主要由α-Ti、WC、TiC、TixW(1－x)固溶体及少量Y2O3构成。梯度涂层层间及底层与基材存在数10 μm 的互扩散层，并在层间形成了冶金结合，提高了涂层的结合性能。梯度耐磨涂层顶层的耐磨性相较于TC4 基材提高了1.45 倍，TC4 及梯度耐磨涂层的磨损机制为黏着磨损与磨粒磨损。梯度涂层耐磨性相较于基材有提高。

关键词： 激光熔覆; TC4; 摩擦磨损; WC; 梯度耐磨涂层

本文引用格式

傅硕, 许爱军, 徐雅欣, 朱丽娟, 娄丽艳, 李文亚 . 激光熔覆WC梯度耐磨涂层的制备与摩擦磨损性能研究[J]. 材料保护, 2025 , 58(4) : 40 -47 . DOI: 10.16577/j.issn.1001-1560.2025.0058

Abstract

Titanium alloys exhibit promising application prospects in ultra-deep well drilling.To enhance the surface wear resistance of titanium alloy drill pipes， WC gradient wear-resistant coatings were fabricated using laser cladding technology.The microstructure， phase composition，elemental distribution， mechanical properties， and tribological performance of the gradient coatings were systematically investigated through OM， SEM， EMPA， XRD， hardness tester， friction and wear tester and white light interferometry.Results demonstrated that the gradient coatings primarily consisted of α-Ti，WC，TiC，TixW(1－x) solid solutions，and minor Y2O3.There were interdiffusion layers with a thickness of several tens of micrometers between the gradient coating layers and the bottom layer and substrate， and the metallurgical bonding was formed between the layers， which improved the bonding property of the coating.Meanwhile， the top layer of the gradient coating exhibited 1.45 times higher wear resistance compared to TC4 substrate.Both TC4 substrate and gradient coatings displayed wear mechanisms dominated by adhesive wear and abrasive wear， while the wear resistance of gradient coatings was higher than that of the substrate.

Key words： laser cladding; TC4; wear; WC; gradient wear-resistant coatings

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