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Al-Zn-Mg-Cu-Li合金时效过程微结构演化的小角x射线散射研究
Small angle x-ray scattering study on microstructure evolution of the aging process of Al-Zn-Mg-Cu-Li alloy
【摘要】 应用小角x射线散射技术分析了Al_Zn_Mg_Cu_Li合金在 13 0 ,150和 160℃温度时效 2 4h析出粒子的微结构参数的变化情况 .粒子的半径随着时效温度的增高而增加 ,它的比内表面积和体积百分数随着时效温度的增高而减小 .对Porod曲线q3J(q) q2 的分析表明 ,析出粒子与基体之间有明显的界面
【Abstract】 Small angle x_ray scattering technique wa s 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 spe cific inner surface and integrated intensities decreased with aging tempe ratures. The study on Porod curves q 3J(q)_q 2 indicates that there is a sharp boundary between precipitates and the ma trix.
【关键词】 小角x射线散射;
Al-Zn-Mg-Cu-Li合金;
时效;
析出粒;
【Key words】 small angle x_ray scattering; Al_Zn_Mg_ Cu_Li alloy; aging; precipitate;
【Key words】 small angle x_ray scattering; Al_Zn_Mg_ Cu_Li alloy; aging; precipitate;
【基金】 家重点基础研究发展规划 (批准号 :G1 9990649);国家高技术研究发展计划 (批准号 :2 0 0 1AA332 0 30 )资助的课题~~
- 【文献出处】 物理学报 ,Acta Physica Sinica , 编辑部邮箱 ,2004年04期
- 【分类号】TG115
- 【被引频次】6
- 【下载频次】221