...
首页> 外文期刊>Tribology International >Study of the tribologically transformed structure created during fretting tests
【24h】

Study of the tribologically transformed structure created during fretting tests

机译:研究在微动测试中产生的经摩擦学改造的结构

获取原文
获取原文并翻译 | 示例
           

摘要

In fretting, without a lubricant, structures fail through wear involving debris. Various metallographic assessments show that this debris creation derives from a special structure, hereafter called the "tribologically transformed structure" (TTS). The latter is nucleated at the very beginning of a contact's life, and eventually masks the initial material's tribological behaviour. This TTS is very hard and brittle, and is quickly destroyed, which explains why TTS is rather difficult to observe. This study focuses on initiation mechanisms which, up to now, are still highly controversial. Large amounts of TTS are observed after fretting tests, which is the reason why they were chosen as the means of investigation. In this paper, the various possible creation mechanisms for TTS will be analysed. From this overview, two nucleation models are chosen: one is based on "mechanical alloying" considerations, and the other is linked to high-strain-recrystallisation phenomena. Transmission electron microscopy (TEM) investigations are used to check these assumptions.
机译:在微动中,如果没有润滑剂,结构会因涉及碎屑的磨损而失效。各种金相评估表明,这种碎片的产生是由于一种特殊的结构,此后称为“摩擦转变结构”(TTS)。后者在接触寿命的开始就成核,并最终掩盖了初始材料的摩擦学行为。这种TTS非常坚硬,易碎,并且很快被破坏,这解释了为什么TTS很难观察。这项研究的重点是直到现在仍然引发争议的启动机制。微动试验后观察到大量TTS,这就是为什么选择它们作为调查手段的原因。在本文中,将分析TTS的各种可能的创建机制。从该概述中,选择了两种成核模型:一种基于“机械合金化”考虑,另一种与高应变再结晶现象相关。透射电子显微镜(TEM)研究用于检查这些假设。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号