Acoustic emission analysis of seizure transition process between steel journals and aluminum alloy plain bearings

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International Pub Date : 2024-10-16 DOI:10.1016/j.triboint.2024.110324

Takumi Iwata , Masaya Fukuda , Masakuni Oikawa , Makoto Kano , Yuji Mihara

引用次数: 0

Abstract

Seizure tests were conducted using a bearing tester to elucidate the mechanism of seizure occurring between aluminum alloy (Al-Sn-Si) plain bearings widely used in gasoline engines and steel journals. Differences in torque spikes that occurred before seizure and final seizure were determined by analyzing the sliding surfaces and cross sections and the acoustic emission signal. The results revealed that the occurrence of final seizure was affected by the melting out and depletion of tin in the bearing alloy, plastic deformation due to frictional heat, and expansion of the aluminum adhesion zone caused by these factors.

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钢制轴颈与铝合金滑动轴承之间咬合过渡过程的声发射分析

为了阐明广泛用于汽油发动机的铝合金（Al-Sn-Si）滑动轴承与钢轴颈之间发生咬合的机理，使用轴承测试仪进行了咬合试验。通过分析滑动表面和横截面以及声发射信号，确定了发生咬合前和最终咬合时扭矩峰值的差异。结果表明，最终咬合的发生受轴承合金中锡的熔化和消耗、摩擦热引起的塑性变形以及铝粘附区膨胀等因素的影响。

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

Tribology International 工程技术-工程：机械

CiteScore

10.10

自引率

16.10%

发文量

627

审稿时长

35 days

期刊介绍： Tribology is the science of rubbing surfaces and contributes to every facet of our everyday life, from live cell friction to engine lubrication and seismology. As such tribology is truly multidisciplinary and this extraordinary breadth of scientific interest is reflected in the scope of Tribology International. Tribology International seeks to publish original research papers of the highest scientific quality to provide an archival resource for scientists from all backgrounds. Written contributions are invited reporting experimental and modelling studies both in established areas of tribology and emerging fields. Scientific topics include the physics or chemistry of tribo-surfaces, bio-tribology, surface engineering and materials, contact mechanics, nano-tribology, lubricants and hydrodynamic lubrication.