铝合金均匀化扩散动力学研究

材料导报, 2004, 18(6): 102-104.

1.东北大学材料电磁过程研究教育部重点实验室,沈阳,110004

2.东北大学材料电磁过程研究教育部重点实验室,沈阳,110004

基金项目: 国家高技术研究发展计划(863计划)(2001AA332030)

Study on the Diffusion Kinetics of Aluminum Alloy Cast during Homogenizing Treatment

用扫描电子显微镜、电子探针微区分析研究了电磁半连续铸造Al-Zn-Mg-Cu合金铸态和均匀化态的成分分布,Cu、Zn和Mg元素存在晶界偏析,偏聚比分别为19.2、2.6、1.85.研究了铸锭均匀化动力学,导出了均匀化动力学方程,根据实验及均匀化动力学计算,最佳均匀化处理工艺为450.C,24h.

[1]	Purdy G R;Kirkaldy J S .Homogenization by diffusion[J].Metallurgical and Materials Transactions,1971,2(02):371.
[2]	Heinz A;Haszler A .Recent development in aluminum alloys for aerospace applications[J].Materials Science and Engineering,2000,280:102.
[3]	Joseph H;Mulherin;Hyman Rosenthal.Influence of nonequilibrium second-phase particles formed during solidification upon the mechanical behavior of an aluminum alloy[J].Metallurgical and Materials Transactions,1971(20):427S.
[4]	hewrnan P G.Diffusion in solids[M].McGraw-Hill, New York,1963
[5]	刘国勋.金属学原理[M].北京:冶金工业出版社,1980:283.
[6]	Shewrnan P G.Diffusion in solids[M].McGraw-Hill, New York,1963
[7]	刘国勋.金属学原理[M].北京:冶金工业出版社,1980:283.

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