• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>American Society of Mechanical Engineers(ASME)/Society of Tribologists and Lubrication Engineers(STLE) International Joint Tribology Conference 2004(IJTC 2004) vol.1 pt.A; 20041024-27; Long Beach,CA(US) >Tribological Performance of Three Advanced Piston Rings in the Presence of MoDTC-Modified GF-3 Oils
【24h】

Tribological Performance of Three Advanced Piston Rings in the Presence of MoDTC-Modified GF-3 Oils

机译：MoDTC修饰的GF-3油存在下三个先进活塞环的摩擦学性能

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 piston assembly (piston ring and cylinder bore) is one of the key parts of the internal combustion (IC) engine. Its performance will directly determine the performance of the whole engine. The piston assembly's tribological performance will be influenced by both its mechanical properties and the tribochemical interactions that take place on their surfaces. In this paper, three kinds of advanced stainless steel piston rings with a single nitrided layer, CrN coating on the nitrided layer and a B_4C and CrN binary-layer coating on the nitrided layer, respectively, were employed. Their frictional behavior and wear performance, when sliding against the cast iron cylinder bore materials lubricated with two kinds of GF-3 category mineral-based engine oils (one of them blended with MoDTC friction modifier), were investigated on a SRV tribotester. The test conditions were set and maintained to simulate engine-operating conditions. SEM (Scanning Electron Microscopy) and EDX (Energy Dispersive X-ray spectroscopy) were employed to characterize the morphology and elemental composition of the wear tracks. Tribotests and analysis results indicate that changes in both the mechanical properties of the tribomate (piston coatings) and tribochemical interactions (formulation of engine oils) have an impact on the tribological performance of the piston assembly. Tribochemical interactions will have a more obvious influence on friction coefficients while the mechanical properties of the tribomate have a more obvious influence on wear.
机译：活塞组件（活塞环和气缸孔）是内燃机（IC）的关键部件之一。它的性能将直接决定整个发动机的性能。活塞组件的摩擦学性能将受其机械性能和在其表面发生的摩擦化学相互作用的影响。在本文中，使用了三种具有单氮化层的高级​​不锈钢活塞环，分别在氮化层上镀有CrN和在氮化层上镀有B_4C和CrN二元层。当在铸铁汽缸孔材料上用两种GF-3类矿物基机油（其中一种与MoDTC摩擦改进剂混合）润滑时，它们的摩擦性能和磨损性能得到了研究。设置并维持测试条件以模拟发动机运行条件。 SEM（扫描电子显微镜）和EDX（能量色散X射线光谱）被用来表征磨损轨迹的形态和元素组成。摩擦测试和分析结果表明，摩擦酸酯（活塞涂层）的机械性能和摩擦化学相互作用（发动机油的配方）的变化都对活塞组件的摩擦性能产生影响。摩擦化学相互作用将对摩擦系数产生更明显的影响，而摩擦酸酯的机械性能对磨损产生更明显的影响。

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