Ti-Al系金属间化合物基叠层结构材料的制备技术与组织性能特征  

Preparation and Performance Characteristics for Multilayered Ti-Al Intermetallics Alloys

作　　者：孙彦波[1] 马凤梅[1] 肖文龙[1] 马朝利[1] 

机构地区：[1]北京航空航天大学材料科学与工程学院空天先进材料与服役教育部重点实验室,北京100191

出　　处：《航空材料学报》2014年第4期98-111,共14页Journal of Aeronautical Materials

摘　　要：Ti-Al金属间化合物相与韧性Ti交替的叠层结构材料既可以保留Ti-Al金属间化合物的高温强度,又可拥有高的室温韧性,受到研究者的广泛关注。综述Ti增韧Ti-Al系金属间化合物基叠层复合材料两种制备方法,即箔箔冶金法和气相沉积法的物理冶金学过程和致密化工艺,介绍各种技术条件下叠层材料组织结构和性能特点,并对各种技术的优缺点进行阐述。最后,对该种复合材料的未来应用领域和发展趋势进行展望,通过工艺调整来制备出具有更加合适的叠层结构和优异性能的材料,依旧是近几年的研究重点。Mulitlayered microstructures constituted Ti-Al intermetallics and titanium not only retain the high temperature strength of Ti-Al intermetallics,but also possess the high toughness at room temperature,which get a lot of attention from the researchers.Author reviews two methods of preparing the multilayered Ti-Al intermetallics toughened by titanium,namely foils-foils metallurgy and physical vapor deposition process.The microstructures and properties of the different multilayered materials was presented.The advantages and disadvantages of various techniques also were described.The development and potential application of this kind of materials are also proposed.In the future,it would be still important to prepare the multilayered materials with more appropriate structures and excellent performance by adjusting the preparation process.

关 键 词：钛合金 钛铝金属间化合物 叠层结构 复合材料 

分 类 号：TG146.23[一般工业技术—材料科学与工程] V252.2[金属学及工艺—金属材料]