Analysis of wear resistance deterioration at elevated temperature of medium carbon alloy steel treated by composite strengthening method of nitriding and microshot peening

IF 5.7 2区工程技术 Q1 ENGINEERING, MECHANICAL Engineering Failure Analysis Pub Date : 2025-02-13 DOI:10.1016/j.engfailanal.2025.109416

Huaiyu Huang , Kaipeng Liang , Bin Cui , Guanghong Wang , Wei Zou , Zhi Zhang , Xinshuo Li , Rui Chen , Qi Liu , Han Wu , Guodong Huang , Qingsong Huang

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Abstract

The influence of high temperature on wear resistance deterioration of 38CrMoAl alloy steel treated by a composite strengthening method of nitriding followed by microshot peening was investigated, compared with that of singly nitrided steel. Results show that the tribological performance of the compositely strengthened steel is better than that of singly nitrided steel, regardless of the normal load and the temperature. The improvement was attributed to the increased surface hardness, residual compressive stress and reduced roughness. Notably, the wear loss of the compositely strengthened steel remarkably increased at the high temperature and heavy load. Deterioration of the excellent wear resistance of the compositely strengthened steel was resulted from the combined effects of significant residual stress release and redistribution, as well as the growth of surface grains and the decrease of hardness at elevated temperature, which suggests that the compositely strengthened steel is more effective to be used at room temperature. Wear mechanism of the compositely strengthened steel is primarily abrasive wear, except for fatigue pitting at room temperature.

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渗氮与微丸强化复合强化法处理中碳合金钢高温耐磨性劣化分析

研究了高温对经渗氮+微丸强化处理的38CrMoAl合金钢耐磨性劣化的影响，并与单渗氮钢进行了对比。结果表明，无论正常载荷和温度如何，复合强化钢的摩擦学性能都优于单氮化钢。改善的原因是表面硬度增加，残余压应力和粗糙度降低。值得注意的是，复合强化钢在高温和重载作用下的磨损量明显增加。高温下残余应力的释放和重分布以及表面晶粒的生长和硬度的降低是复合强化钢优异耐磨性的恶化原因，表明复合强化钢在室温下使用效果更好。除室温下的疲劳点蚀外，复合强化钢的磨损机制主要为磨粒磨损。

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来源期刊

Engineering Failure Analysis 工程技术-材料科学：表征与测试

CiteScore

7.70

自引率

20.00%

发文量

956

审稿时长

47 days

期刊介绍： Engineering Failure Analysis publishes research papers describing the analysis of engineering failures and related studies. Papers relating to the structure, properties and behaviour of engineering materials are encouraged, particularly those which also involve the detailed application of materials parameters to problems in engineering structures, components and design. In addition to the area of materials engineering, the interacting fields of mechanical, manufacturing, aeronautical, civil, chemical, corrosion and design engineering are considered relevant. Activity should be directed at analysing engineering failures and carrying out research to help reduce the incidences of failures and to extend the operating horizons of engineering materials. Emphasis is placed on the mechanical properties of materials and their behaviour when influenced by structure, process and environment. Metallic, polymeric, ceramic and natural materials are all included and the application of these materials to real engineering situations should be emphasised. The use of a case-study based approach is also encouraged. Engineering Failure Analysis provides essential reference material and critical feedback into the design process thereby contributing to the prevention of engineering failures in the future. All submissions will be subject to peer review from leading experts in the field.