摘要
以韧性金属Ti箔、连续陶瓷Si C纤维、金属间化合物Ti2AlNb箔为原材料,对箔-纤维-箔进行了单元堆叠,采用真空热压和陶瓷SiC纤维编织技术制备了不同热加工工艺参数下的连续陶瓷Si C纤维增强钛基仿生叠层复合材料。利用扫描电子显微镜(SEM)和能谱分析仪(EDS)对制备态复合材料微观组织形貌和各组元间界面元素分布进行了分析。结果表明,当热加工工艺参数为920℃/30 min/40 MPa时,复合材料各组元间实现理想冶金结合,陶瓷SiC纤维均匀等距分布于韧性金属Ti基体中,韧性金属Ti箔与金属间化合物Ti2AlNb箔通过元素扩散实现了理想冶金结合。
Using ductile metal Ti foil, continuous ceramic Si C fiber and intermetallic compound Ti2AlNb foil as raw materials, the foil-fiber-foil is stacked in units. The continuous ceramic Si C fiber reinforced titanium based biomimetic laminated composites with different thermal processing parameters were prepared by vacuum hot pressing and ceramic Si C fiber knitting technology. Scanning electron microscopy(SEM) and energy spectrum analyzer(EDS) were used to analyze the microstructure morphology of the prepared composite and the distribution of interfacial elements among the components. The results show that when the hot working technology parameters are 920 ℃/30 min/40 MPa, the composites realize the ideal metallurgical bonding state. The ceramic Si C fibers are uniformly equidistant in ductile metal Ti matrix, and the ductile metal Ti foil and the intermetallic compound Ti2 Al Nb foil achieve ideal metallurgical bonding through elemental diffusion.
作者
张国庆
曲海涛
原梅妮
侯红亮
赵冰
李殊霞
ZHANG Guoqing;QU Haitao;YUAN Meini;HOU Hongliang;ZHAO Bing;LI Shuxia(School of Flight,Anyang Institute of Technology,Anyang 455000,China;Metal Forming Department,AVIC Manufacturing Technology Institute,Beijing 100024,China;School of Mechanical and Electrical Engineering,North University of China,Taiyuan 030051,China)
出处
《热加工工艺》
北大核心
2020年第20期66-71,共6页
Hot Working Technology
基金
国家自然科学基金项目(51201155)
航空科学基金项目(20145425004,61901110206)
安阳市科技攻关项目(2020-20704)。
关键词
钛基复合材料
仿生叠层
热加工
陶瓷SiC纤维
titanium matrix composites
bionic lamination
hot working
ceramic SiC fiber
