摘要
冷喷涂过程的低温特性决定了其适合制备氧化敏感性的Ti及Ti合金涂层,由于Ti金属的难变形性,使得很难得到高质量的冷喷涂涂层。国内外学者对冷喷涂制备Ti及Ti合金涂层开展了初步研究工作。文中在大量文献分析的基础上对冷喷涂制备Ti及Ti合金涂层组织调控手段进行了分类总结。目前,对冷喷钛及钛合金涂层的调控手段主要集中在喷涂参数、粉末状态、基体状态和喷嘴等4个方面。除此之外,一些新兴的技术如原位喷丸辅助技术、温喷涂技术也被证明是一种有效的增强难变形粒子变形的技术。未来对冷喷涂Ti及Ti合金涂层的研究既要注重冷喷涂工艺本身,又要加强与其他加工技术的融合。
The low temperature characteristic of the cold spray process determines its suitability for the preparation of oxidation-sensitive Ti and Ti alloy coatings.Due to the poor deformability of Ti metal,it is difficult to obtain high quality cold spray coatings.At present,domestic and foreign scholars have carried out lots of research work on cold-sprayed Ti and Ti alloy coatings.Based on a large number of literatures,this paper classified and summarized the microstructure control methods of cold spray Tibased coatings.The control methods of cold spray titanium coatings mainly focus on four aspects of spraying parameters:Powder state,substrate state,powder condition and nozzle.Some emerging techniques such as in-situ shot peening and warm spraying have also proved to be an effective auxiliary for enhancing particle deformation.In the future,the research on cold-sprayed Ti and Ti alloy coatings should focus on the cold-spraying process itself and integration with other processing technologies.
作者
周红霞
李成新
李长久
ZHOU Hongxia;LI Chengxin;LI Changjiu(Sate Key Laboratory for Mechanical Behavior of Materials,Xi’an Jiaotong University,Xi’an 710049,China;School of Mechanical Engineering,Qinghai University,Xining 810016,China)
出处
《中国表面工程》
EI
CAS
CSCD
北大核心
2020年第2期1-14,共14页
China Surface Engineering
基金
国家自然科学基金(51761145108)
关键词
涂层
冷喷涂
Ti及Ti合金
组织调控
coating
cold spraying
Ti and Ti alloy
microstructure regulation
