TiAl合金及其复合材料的研究进展与发展趋势  

Advances and perspectives of TiAl alloy and its composites

作　　者：邹芹[1,2] 关勇 李艳国 王明智[2] ZOU Qin;GUAN Yong;LI Yanguo;WANG Mingzhi(School of Mechanical Engineering,Yanshan University,Qinhuangdao,Hebei 066004,China;State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao,Hebei 066004,China)

机构地区：[1]燕山大学机械工程学院,河北秦皇岛066004 [2]燕山大学亚稳材料制备技术与科学国家重点实验室,河北秦皇岛066004

出　　处：《燕山大学学报》2020年第2期95-107,共13页Journal of Yanshan University

基　　金：河北省自然科学基金资助项目(E2015203232);“河北省首批青年拔尖人才支持计划”资助项目。

摘　　要：TiAl基复合材料具有低密度、高强度、优异的抗氧化性和抗蠕变性等特点,尤其是高温下的优异性能使其成为汽车、航空等领域最具有潜力的材料。但同时也存在较低的断裂韧性、低室温塑性等缺陷,限制其广泛应用。本文对TiAl材料的分类、应用以及性能缺陷等关键问题进行综述,重点介绍了合金化、表面处理、合成复合材料等技术对其组织性能的影响;其次,简要概述TiAl基复合材料的研究进展及应用领域,并指出TiAl基自润滑材料将成为未来研究的热点之一。TiAl-based composites are of low density, high strength, high oxidation resistance and creep resistance, and considered to be the most promising materials in the automotive and aerospace fields, especially for its high temperature applications. However, the aapplications are quite limited because of its low fracture toughness and low room temperature plasticity. The key issues of classification, applications, and performance of TiAl materials were reviewed in this paper. The effects of alloying, surface treatment, and fabrication of composites on their microstructure and properties were highlighted. In addition, the research progress and application fields of TiAl-based composites were briefly summarized, emphasizing that TiAl-based self-lubricating materials will become one of the hot topics in the future.

关 键 词：TIAL合金 TIAL基复合材料 组织性能 研究进展 

分 类 号：TG148[一般工业技术—材料科学与工程]