SiC纤维增强钛基复合材料空心结构成形研究  

The fabrication of hollow structure of SiC fiber reinforced titanium matrix composite

作　　者：赵冰[1,2] 廖金华[2] 侯红亮[2] 李志强[2] 白秉哲[1] 

机构地区：[1]清华大学材料科学与工程系,北京100081 [2]北京航空制造工程研究所,北京100024

出　　处：《材料科学与工艺》2011年第2期28-33,共6页Materials Science and Technology

摘　　要：采用箔材刻槽法制备连续纤维增强钛基复合材料(SiCf/Ti)面板,通过分析不同复合工艺参数条件下的纤维/基体界面和基体微观组织,获得了优化的制备工艺:925℃/100 MPa/1 h.利用SiCf/Ti复合材料沿垂直纤维方向具有大变形的能力,将超塑成形/扩散连接技术(SPF/DB)与SiCf/Ti复合材料的复合技术相结合,经过热压复合、热成形、超塑成形3个工艺过程,制备了SiCf/Ti复合材料的空心结构,并对空心结构件进行了微观组织分析,验证了工艺的可行性.／The grooved-foil process is adopted to fabricate SiCf/Ti composite panel. The fiber to matrix interfaces and the matrix of the composites, prepared under different processing parameters, are analyzed, so that the optimum process parameters of temperature 925℃, pressure 100 MPa and holding one hour are obtained. Since the SiCf/Ti composite has superplastie property along the fiber direction, a SiCf/Ti composite monolithic with hollow strueture is fabricated by consolidation, hot forming, Superplastic Forming （SPF） in sequence. And the feasibility of forming process was verified by investigating the microstructure and mechanical properties of the hollow structure.

关 键 词：连续纤维增强钛基复合材料 SPF/DB 箔材刻槽法 空心结构 热压复合 

分 类 号：TB331[一般工业技术—材料科学与工程]