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Effects of Cerium on Texture and Mechanical Property of 2090 Aluminium-Lithium Alloys
Authors:ZHANG Min-gang  JIN Zhi-hao  YAN Jun-min  GENG Dong-sheng  ZHANG Bao-chang
Abstract:In order to investigate the effects of Ce on mechanical anisotorpy of Al-Li alloys, the texture of 2090 AlLi alloy with different Ce content was determined using orientation distribution function technique, in which the mechanical properties with different angles to rolling direction were measured. The effects of Ce on texture and mechanical properties of 2090 alloys were discussed. The results show that the type of main texture of 2090 alloys is {225} <554>. Ce will not change the type of main texture of the alloy, but make the distributiodn of main texture scattered. Ce can change the volume fractions of ideal texture components and will decrease the anisotropy of yield strength, hence the content of the texture components that enhance the anisotropy of yield strength can be reduced.
Keywords:rare earths  aluminium-lithium alloy  mechanical property
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