• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of mechanics of materials and structures >Analysis on the interfacial mechanics of microscratching test for DLC-G95Cr18 film-substrate system
【24h】

Analysis on the interfacial mechanics of microscratching test for DLC-G95Cr18 film-substrate system

机译：Analysis on the interfacial mechanics of microscratching test for DLC-G95Cr18 film-substrate system

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

摘要

Diamond-like carbon (DLC) is one of the rising film materials in the aerospace, automobile and valve applications, for its inherent and unique properties in anti-wear and low friction. In this paper, an interfacial mechanics model of film-substrate system was established to evaluate the stresses and deformations at the interface of DLC-G95Cr18 film-substrate system accurately. A microscratching test was used to measure the load-carrying capacity of the DLC-bearing steel by ball on disc mode. The failure of this film-substrate system was determined using the acoustic emission and friction force signal simultaneously. Then, the interfacial stresses and deformations were calculated by using the established model and the design algorithm. Both of the experimental and computational results showed that hard DLC film would experience a failure process of elastic-plastic deformation, which caused by the interfacial stresses and initial cracks. During the brittle fracture of DLC film, shear stresses were the main cause of the initial cracks. And the evolution of stress and deformation in the process of microscratching and the critical failure state under its critical load were analyzed. These result could be utilized in the analysis of the load-carrying capacity and the failure mechanism of DLC-G95Cr18 film-substrate system.

著录项

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