原位自生TiB_(2)/Al基复合材料的腐蚀防护技术研究现状  

A Review of the Corrosion Protection Technology on In Situ TiB_(2)/Al Composites

作　　者：王浩伟[1] 赵德超 汪明亮[1] WANG Haowei;ZHAO Dechao;WANG Mingliang(School of Materials Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学材料科学与工程学院,上海200240

出　　处：《金属学报》2022年第4期428-443,共16页Acta Metallurgica Sinica

基　　金：国家自然科学基金项目Nos.51971137、52001203、52075327、52004160、52071207、52101043、52101179。

摘　　要：原位自生TiB_(2)/Al基复合材料是具有优异综合力学性能和机械加工性能的高性能结构材料。在众多工况条件下,复合材料耐蚀性能是设计者们需要考虑的关键要素之一。由于TiB_(2)颗粒和Al基体间的微电偶腐蚀以及TiB_(2)颗粒对复合材料Al基体表面天然氧化膜层连续性破坏等因素,降低了此类复合材料的耐蚀性。TiB_(2)/Al基复合材料的表面处理与腐蚀防护技术的开发显得尤为迫切。针对这一问题,本文主要基于现有的阳极氧化和稀土转化膜技术、低温熔盐沉积技术、微弧氧化技术等表面改性方法,综述了原位自生TiB_(2)/Al基复合材料表面改性及其腐蚀防护技术的研究进展,并对此类复合材料表面改性工艺技术发展方向提出合理建议。新型高效表面处理与腐蚀防护工艺的采用将为原位自生TiB_(2)/Al基复合材料在航空、航天、航海、武器装备、轨道交通、汽车轻量化等领域的更大规模应用提供有效技术保障。In situ TiB_(2)/Al-based composites are high-performance structural materials with excellent overall mechanical properties and machining properties. One of the critical factors in many practical situations is the composites’ corrosive resistance. Microgalvanic corrosion occurs between TiB_(2)particles and the Al matrix in TiB_(2)/Al composites as well as a negative effect of TiB_(2)particles on the continuous passive layer is observed, resulting in lower corrosive-resistant performance. As a result, developing surface treatment and corrosion protection technology for TiB_(2)/Al composites is especially important. Regarding this problem, this paper mainly reviews the surface modification methods of in situ TiB_(2)/Al composites, including the anodic oxidation and rare earth conversion coating technology, low-temperature molten-salt deposition technology, and microarc oxidation technology. Furthermore, reasonable suggestions for future development on the surface protection technology of TiB_(2)/Al composites are made. The adoption of novel high-efficiency surface treatment and corrosion protection technology should provide effective technical support for the increasing large-scale application of in situ TiB_(2)/Al composites in aviation, aerospace, navigation, national defense, railway transportation, and automotive industrial fields.

关 键 词：原位自生TiB_(2)/Al基复合材料 表面处理 腐蚀防护 涂层 

分 类 号：TG146.2[一般工业技术—材料科学与工程]