硼化工艺后的 CrVN 薄膜涂层 WC-Co 工具的微观结构和摩擦学特性

IF 1.8 4区材料科学 Q2 MATERIALS SCIENCE, CERAMICS

International Journal of Applied Ceramic Technology Pub Date : 2024-08-18 DOI:10.1111/ijac.14896

Khokha Lalaoui, Mounia Belaid, Nasser Eddine Beliardouh, Kheireddine Bouzid, Samira Tlili, Latifa Kahloul, Karima Boudjeda, Chems Eddine Ramoul

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引用次数: 0

摘要

迄今为止，通过陶瓷涂层改善碳化钨基材（WC-Co）摩擦学性能的新研究报告仍在不断涌现。它已成为硬质材料研究中广泛应用的热门研究课题，尤其是在工具制造领域。本研究调查了一种商用硬质合金工具（WC-Co）的磨损特性，该工具涂有一层物理气相沉积铬钒氮化膜（CrVN），并在最后的热化学处理过程中进行了硼化处理。试样与氧化铝球作为静态伙伴进行了干滑动接触测试，分析了试样的摩擦响应，并与未涂层试样进行了比较。根据体积损失计算出的摩擦系数在施加 10 N 负荷时，除无涂层试样外，所有试样的摩擦系数都在 0.58 左右。磨损痕分析表明了几种磨损机制，即抛光、氧化、磨损碎屑形成、表面粘合剂去除、晶粒破碎和晶粒拉出。

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Microstructure and tribological properties of CrVN thin film coated WC‐Co tool after boriding process

The tribological performance of the tungsten carbide substrate (WC‐Co), improved by ceramic coatings, is still being reported in new studies that have been carried out to date. It has become a hot research topic that are widely applied in hard material research, especially in the tools manufacturing fields. This study was conducted to investigate the wear characteristics of a commercial cemented carbide tool (WC‐Co) coated with a physical vapor deposition chromium‐vanadium nitride film (CrVN), followed by a boriding process as a final thermochemical treatment. Tested in dry sliding contact against an alumina ball as a static partner, the tribological responses of the specimen were analyzed and compared with an uncoated specimen. Friction coefficients, calculated from volume loss, were around .58 for all specimens except the uncoated specimen at 10 N of applied load. Wear scar analyses revealed the occurrence of several wear mechanisms that is polishing, oxidation, wear debris formation, surface binder removal, grain fragmenting, and grain pull‐out.

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来源期刊

International Journal of Applied Ceramic Technology 工程技术-材料科学：硅酸盐

CiteScore

3.90

自引率

9.50%

发文量

280

审稿时长

4.5 months

期刊介绍： The International Journal of Applied Ceramic Technology publishes cutting edge applied research and development work focused on commercialization of engineered ceramics, products and processes. The publication also explores the barriers to commercialization, design and testing, environmental health issues, international standardization activities, databases, and cost models. Designed to get high quality information to end-users quickly, the peer process is led by an editorial board of experts from industry, government, and universities. Each issue focuses on a high-interest, high-impact topic plus includes a range of papers detailing applications of ceramics. Papers on all aspects of applied ceramics are welcome including those in the following areas: Nanotechnology applications; Ceramic Armor; Ceramic and Technology for Energy Applications (e.g., Fuel Cells, Batteries, Solar, Thermoelectric, and HT Superconductors); Ceramic Matrix Composites; Functional Materials; Thermal and Environmental Barrier Coatings; Bioceramic Applications; Green Manufacturing; Ceramic Processing; Glass Technology; Fiber optics; Ceramics in Environmental Applications; Ceramics in Electronic, Photonic and Magnetic Applications;