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Small angle x-ray scattering study on microstructure evolution of the aging process of Al-Zn-Mg-Cu-Li alloy

Du Zhi-Wei Zhou Tie-Tao Liu Pei-Ying Chen Chang-Qi Dong Bao-Zhong Zhao Hui

Small angle x-ray scattering study on microstructure evolution of the aging process of Al-Zn-Mg-Cu-Li alloy

Du Zhi-Wei, Zhou Tie-Tao, Liu Pei-Ying, Chen Chang-Qi, Dong Bao-Zhong, Zhao Hui
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  • Received Date:  04 August 2003
  • Accepted Date:  14 August 2003
  • Published Online:  15 April 2004

Small angle x-ray scattering study on microstructure evolution of the aging process of Al-Zn-Mg-Cu-Li alloy

  • 1. (1)北京航空航天大学材料科学和工程学院,北京 100083; (2)中国科学院高能物理研究所同步辐射实验室,北京 100039; (3)中国科学院高能物理研究所同步辐射实验室,北京 100039;鞍山师范学院物理系,鞍山 114005

Abstract: Small angle x-ray scattering technique was used to analyze the variation of microstructure parameters of precipitates in an Al-Zn-Mg-Cu-Li alloy aged at 130, 150 and 160℃ for the same duration. Precipitate particles’ radius increased with aging temperatures, but their specific inner surface and integrated intensities decreased with aging temperatures. The study on Porod curves q3J(q)-q2 indicates that there is a sharp boundary between precipitates and the matrix.

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