铸造钛合金BT22与ZTC4的组织和性能对比分析  

Comparisons of Structures and Properties between Cast Titanium Alloy BT22 and ZTC4

作　　者：赵红霞 南海 沙爱学 ZHAO Hongxia;NAN Hai;SHA Aixue(AECC Beijing Institute of Aeronautical Materials,Beijing 100095,China)

机构地区：[1]中国航发北京航空材料研究院,北京100095

出　　处：《铸造工程》2022年第5期1-5,共5页Foundry Engineering

摘　　要：钛合金铸件在航空航天领域应用广泛,且对结构和性能的要求越来越高。为了给设计人员选材提供依据,针对现阶段我国高强度铸造钛合金应用情况,研究了铸造钛合金BT22的组织、性能和热处理工艺,并以常规铸造钛合金ZTC4作为对比,分析了BT22的优势,发现BT22铸造钛合金无论在热等静压后或热处理后,均具有比ZTC4优异的综合性能。Titanium alloy castings are widely used in the aerospace field, and the requirements for structure and performance are getting higher and higher. In order to provide a basis for designers to select materials, according to the current application situation of China’s high-strength cast titanium alloys, the structure, properties and heat treatment process of cast titanium alloys BT22 are studied, and the conventional cast titanium alloy ZTC4 is used as a comparison to analyze advantages of BT22. It is found that BT22 cast titanium alloy has better overall performance than ZTC4 no matter after hot isostatic pressing or heat treatment.

关 键 词：高强度 铸造钛合金 BT22 ZTC4 

分 类 号：TG166.5[金属学及工艺—热处理]