• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied Surface Science >Investigations on enhancing the surface mechanical and tribological properties of A356 Al alloy using pulsed laser-assisted nitriding
【24h】

Investigations on enhancing the surface mechanical and tribological properties of A356 Al alloy using pulsed laser-assisted nitriding

机译：使用脉冲激光辅助氮化提高A356 Al合金表面机械和摩擦学性能的研究

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

This paper demonstrates the influence of pulsed laser-assisted nitriding (in an open atmosphere with N-2 gas purging) and pulsed laser processing (without N-2 gas purging) of A356 Al alloy on the surface mechanical and fretting wear properties. The influence of laser fluence in the range of (50-450 J/cm(2)) on the thickness of the nitride layer, surface quality (discolored concentration % and roughness), nanomechanical and fretting wear behavior was investigated in detail. The pulsed laser-assisted nitriding has yielded the typical gold-colored AlN compound layer at the laser fluence of 100 J/cm(2). Exceeding the fluence limit has caused microvoid and oxide layer formation and eventually reduced the thickness and hardness of the nitride layer. In case of pulsed laser processing, the optimized fluence was found to be 200 J/cm(2). The pulsed laser-assisted nitriding and processing have improved the hardness up to 44.8% and 16.3% respectively in comparison to the untreated specimen (1.49 GPa). Whereas the fretting wear volume was reduced by five and two times for the pulsed laser-assisted nitriding and processed specimens respectively.
机译：本文展示了脉冲激光辅助氮化（在与N-2气体吹扫的开放气氛中）和脉冲激光加工（无N-2气体吹扫）的影响，A356 Al合金的表面机械和微动磨损性能。详细研究了激光物质（50-450J / cm（2）的厚度，表面质量（变色浓度％和粗糙度），纳米力学和微动磨损行为的范围内的影响。脉冲激光辅助氮气在激光器流量为100J / cm（2）时产生了典型的金色Aln化合物层。超过流量极限导致微壤杂体和氧化物层形成，最终降低了氮化物层的厚度和硬度。在脉冲激光加工的情况下，发现优化的注速为200 j / cm（2）。与未处理的样品（1.49GPa）相比，脉冲激光辅助氮化和加工分别改善了高达44.8％和16.3％的硬度。虽然分别为脉冲激光辅助氮化和加工标本的脉冲磨损量减少了五两倍和两倍。

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