典型文献
Effects of sintering temperature and time on defect evolution and compression properties of Ti-Al3Ti laminated composites
文献摘要：
For metal-intermetallic laminated composites,various types of defects often occur dur-ing the preparation process.This paper studied the evolution and formation mechanism of defects,such as pores,tunnel cracks,and delamination cracks in Ti-Al3Ti laminated composites prepared by vacuum hot-pressing method.Moreover,quasi-static and dynamic compression tests were per-formed to study the effects of pores and delamination cracks on the compression properties of the composites.The results showed that for Ti-Al3Ti laminated composites prepared at 710℃,their Al3Ti layers exhibit a porous structure,and the porosity of Al3Ti layers firstly decreases and then increases under the combined action of press,the self-propagating reaction and Al3Ti grain coars-ening.The tunnel cracks in Ti-Al3Ti laminated composites are resulted by tensile residual stresses and the inherent brittleness of Al3Ti.For Ti-Al3Ti laminated composites prepared at 680℃,the formation of delamination cracks is mainly related to the diffuse reaction of Ti/Al atoms and the Kirkendall effect,and the numbers of delamination cracks increase with the increasing of sintering time.Moreover,the pores and delamination cracks greatly deteriorate the compression properties of Ti-Al3Ti laminated composites.Crack-free and dense Ti-Al3Ti laminated composites exhibit the highest compression properties.
文献关键词：
中图分类号：
作者姓名：
Meini YUAN;Zhijun WANG;Fangzhou HAN
作者机构：
College of Mechatronic Engineering,North University of China,Taiyuan 030051,China
文献出处：
引用格式：
[1]Meini YUAN;Zhijun WANG;Fangzhou HAN-.Effects of sintering temperature and time on defect evolution and compression properties of Ti-Al3Ti laminated composites)[J].中国航空学报（英文版）,2022(01):137-143
A类：
coars
B类：
Effects,sintering,temperature,evolution,compression,properties,Al3Ti,laminated,composites,For,intermetallic,various,types,defects,often,occur,dur,preparation,process,This,paper,studied,formation,mechanism,such,pores,tunnel,cracks,delamination,prepared,by,vacuum,hot,pressing,method,Moreover,quasi,static,dynamic,tests,were,formed,study,effects,results,showed,that,their,layers,exhibit,porous,structure,porosity,firstly,decreases,then,increases,under,combined,self,propagating,reaction,grain,ening,resulted,tensile,residual,stresses,inherent,brittleness,mainly,related,diffuse,atoms,Kirkendall,numbers,increasing,greatly,deteriorate,Crack,free,dense,highest
AB值：
0.425684
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