...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Strength of Materials >Effect of Textured Dentated Surfaces on 30KhGSA Steel Damage and Life at Fatigue, Fretting Fatigue, and Fretting
【24h】

Effect of Textured Dentated Surfaces on 30KhGSA Steel Damage and Life at Fatigue, Fretting Fatigue, and Fretting

机译：纹理齿状表面对30khgsa的钢损伤和疲劳，微动疲劳和烦恼的影响

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Machines and constructions are noted to contain components, units, and assemblies, which are joined together, forming a large number of contacting pairs. At operating loads, the latter become sources of material damage as a result of fretting fatigue and fretting wear. The safety and long-term operation of those items would require studies on the nature of these processes and search for the methods of reducing their intensity. Investigation results for the effect of textured surfaces in the form of a dent (recess) network and electric-spark VK8 alloy embedding over 30KhGSA steel specimen surfaces on fatigue, fretting fatigue, and fretting wear characteristics are presented. The dent network is formed by plastic indentation using a specially developed device. This process initiates residual tensile stresses. Their optimization was carried out with computation-experimental correlation between the geometrical ratios of dent network parameters (spacing between dent rows, in-row spacing, dent depth). Discrete VK8 alloy-embedded surfaces were generated with the electric-spark method, providing optimum process parameters. Textured surfaces reduce fatigue and fretting fatigue resistance, while enhancing the fretting wear one in comparison with smooth surfaces. Additional treatment of the textured dentated surface with the ion-plasma thermocyclic nitriding method greatly increases the fatigue and fretting fatigue resistance of 30KhGSA steel. Electric-spark VK8 alloy embedding results in worse fatigue and fretting fatigue properties, which is determined by the surface formation technology and difference between embedded particle and base metal characteristics.
机译：通过连接组件，单位和组件，该组件，单位和组件形成在一起，形成大量接触对。在运行负荷时，后者由于疲劳和烦恼磨损而成为物质损坏的来源。这些物品的安全和长期运行需要研究这些过程的性质，并搜索降低其强度的方法。呈现纹理表面效果的调查结果，呈现出超过30khgsa钢样品表面的凹陷（凹槽）网络和电火花Vk8合金的形式疲劳，微动疲劳疲劳和微动磨损特性。凹陷网络由塑性压痕形成，使用特殊开发的装置形成。该方法启动残留的拉伸应力。它们的优化是以凹痕网络参数的几何比（凹痕行之间的间距，连续间隔，凹陷深度之间的间距之间的计算实验相关性进行。采用电火花法产生离散的VK8合金嵌入式表面，提供最佳工艺参数。纹理表面减少疲劳和疲劳疲劳电阻，同时与光滑表面相比，增强磨损磨损。具有离子等离子体热环氮化方法的额外处理纹理齿状表面大大提高了30khgsa钢的疲劳和微动抗疲劳性。电火花VK8合金嵌入导致疲劳疲劳和微动疲劳性能，这取决于表面形成技术和嵌入颗粒和基础金属特性之间的差异。

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