...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials Science and Engineering >The influence of steel microstructure and inclusion characteristics on the formation of premature bearing failures with microstructural alterations
【24h】

The influence of steel microstructure and inclusion characteristics on the formation of premature bearing failures with microstructural alterations

机译：钢微观结构和包涵特性对微观结构改变的过早轴承故障形成的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The formation of premature cracking damage associated with local microstructural alterations, commonly referred to as "white etching cracks" (WECs) has led to unpredictable bearing failures in numerous industrial applications. WECs are known to occur in the field independent of material characteristics such as heat treatment, predominant microstructure and surface coatings, as well as lubricant characteristics such as additive packages and viscosity. However, WECs have proven difficult to recreate at a benchtop scale; to date, no benchtop test has been reported to recreate WECs using commercially available field lubricants. The present work intends to identify key differences between the microstructure of field bearings and the microstructure of benchtop samples, focusing on the characteristics of the inclusions contained in both steels. Synchrotron scale X-ray tomography revealed that AISI 52100 steel used in industrial scale field bearings contained a drastically different inclusion microstructure then the AISI 52100 steels used in standard benchtop test specimens. Additionally, the authors were able to form WECs in test samples manufactured out of the steel of a field bearing using fully formulated field lubricants; a finding which has not yet been reported in open literature.
机译：形成与局部微观结构改变相关的过早开裂损伤，通常称为“白色蚀刻裂缝”（WECS）导致了许多工业应用中的轴承失效。已知WECs在现场发生在诸如热处理，主要微观结构和表面涂层的材料特性，以及润滑剂特性，如添加剂包装和粘度。但是，WECS已经证明难以以支架规模重建;迄今为止，没有报告使用市售现场润滑剂重新创建WECS的Benchtop测试。本作的工作旨在识别场轴承的微观结构与台式样品的微观结构之间的关键差异，其专注于两个钢中包含的夹杂物的特性。同步速率X射线断层扫描显示，工业规模磁场轴承中使用的AISI 52100钢含有急性不同的夹杂容微观结构，然后是标准台式试验标准测试标本中使用的AISI 52100钢。此外，作者能够使用完全配制的野外润滑剂在磁场制成的钢的试验样品中形成WECS;尚未在公开文学中报告的发现。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利