CrAlN基涂层力学及抗氧化性能研究进展
Research progress on mechanical properties and oxidation resistance of CrAlN-based coatings
贺涛 1曹红帅 1李贝贝 1齐福刚 1赵镍 1廖斌 2欧阳晓平1
作者信息
- 1. 湘潭大学材料科学与工程学院,湖南湘潭 411105
- 2. 北京师范大学核科学与技术学院,北京 100875
- 折叠
摘要
CrAlN涂层具有较高的硬度和耐磨性,被广泛应用于切削刀具和模具的表面防护.本文首先介绍了 CrAlN涂层的结构及其对涂层力学性能和热分解机制的影响,指出Al元素含量及其存在方式是影响CrAlN晶体结构和性能的重要因素;其次,综述了 CrAlN基多元涂层和多层涂层在力学性能、高温抗氧化性能的研究现状,围绕元素掺杂改性和多层涂层结构设计,对比分析各种改性方法的优势与不足;随后,总结了 Si、Y、V等元素掺杂对涂层性能的影响,指出构建纳米尺度的多层结构能显著改善涂层性能;最后,讨论了 CrAlN基涂层的高温氧化行为和高温失效机制,为CrAlN基硬质涂层的性能优化提供参考.
Abstract
CrAlN coatings are extensively applied in the protection of the cutting tools and molds due to their higher hardness and abrasive resistance.Firstly,the structure of CrAlN coatings and its effect on the mechanical properties and thermal decomposition mechanism of the coatings is introduced in the present review,and then pointing out that the Al content and its existence mode are important factors affecting the structure and properties of CrAlN crystals.Secondly,research status of CrAlN-based multicomponent coating and multilayer coating about the mechanical properties and high temperature oxidation resistance properties is reviewed.Focused on the doping modification of elements and the designing of multilayer coating structure,the advantages and disadvantages of various modification methods are compared and analyzed,then the doping of Si,Y,V and their influence to the performance of coating are summarized,and pointing out that constructing nanoscale multilayer coating can significantly improve the performance.Finally,the high-temperature oxidation behavior and high-temperature failure mechanism of CrAlN-based coatings are discussed,providing a reference for the performance optimization of CrAlN-based hard coatings.
关键词
CrAlN基涂层/多层结构/元素掺杂/力学性能/抗氧化性能Key words
CrAlN-based coating/multilayer structure/element doping/mechanical properties/oxidation resistance引用本文复制引用
基金项目
国家自然科学基金(52271117)
湖南省自然科学基金面上项目(2021JJ30646)
湖南省高新技术产业科技创新引领计划(2022GK4038)
出版年
2024
NETL
NSTL
万方数据