A new paradigm in uniaxial wear testing for ceramics and ceramic coatings

IF 4.2 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

International Journal of Refractory Metals & Hard Materials Pub Date : 2025-02-27 DOI:10.1016/j.ijrmhm.2025.107127

Mark Gee, Tim Kamps, Peter Woolliams

引用次数: 0

Abstract

This paper describes a uniaxial test system that acquires a full data set of information in real time in situ consisting of an image and topographical map of all the wear surface of the disc, together with other signals such as the applied load and friction load. This enables comprehensive off line analysis of results that enables the understanding of tribological phenomena that occur during wear.

The utility of the test system was demonstrated through tests on four tribological systems. The process of failure for the two thin coatings tested showed two different failure modes, indicating that failure of the CrAlN coating took place through a sudden delamination process, but the DLC coating failed by a gradual process of removal of coating through abrasion.

The other two cases showed examples of the formation and dynamics of transfer layers, including movement, removal and reforming.

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陶瓷和陶瓷涂层单轴磨损测试的新范例

本文介绍了一种单轴测试系统，该系统可以实时获取由圆盘所有磨损表面的图像和地形图组成的完整数据集信息，以及其他信号，如施加载荷和摩擦载荷。这样可以对结果进行全面的离线分析，从而了解磨损过程中发生的摩擦学现象。通过对四个摩擦学系统的测试，验证了该测试系统的实用性。两种薄涂层的失效过程表现出两种不同的失效模式，表明CrAlN涂层的失效是通过突然的脱层过程发生的，而DLC涂层的失效是通过磨损逐渐去除涂层的过程。另外两个例子展示了转移层的形成和动力学，包括移动、移除和重整。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

$International Journal of Refractory Metals & Hard Materials$

International Journal of Refractory Metals & Hard Materials 工程技术-材料科学：综合

CiteScore

7.00

自引率

13.90%

发文量

236

审稿时长

35 days

期刊介绍： The International Journal of Refractory Metals and Hard Materials (IJRMHM) publishes original research articles concerned with all aspects of refractory metals and hard materials. Refractory metals are defined as metals with melting points higher than 1800 °C. These are tungsten, molybdenum, chromium, tantalum, niobium, hafnium, and rhenium, as well as many compounds and alloys based thereupon. Hard materials that are included in the scope of this journal are defined as materials with hardness values higher than 1000 kg/mm2, primarily intended for applications as manufacturing tools or wear resistant components in mechanical systems. Thus they encompass carbides, nitrides and borides of metals, and related compounds. A special focus of this journal is put on the family of hardmetals, which is also known as cemented tungsten carbide, and cermets which are based on titanium carbide and carbonitrides with or without a metal binder. Ceramics and superhard materials including diamond and cubic boron nitride may also be accepted provided the subject material is presented as hard materials as defined above.