1. Narashimha Rao B V. Influence of Aging Treatment on the Grain Boundary Precipitation and Chemistry in 7075Al Alloy [J ]. Mater Trans A , 1981, 12 (7) : 1356~ 1359.
2. Park J K. Influence of Retrogression and Reaging Treatments on the Strength and Stress Corrosion Resistance of Aluminium Alloy 70752T 6 [J ]. Mater Sci Eng A , 1988, 103 (1) : 223~ 230.
3. Light metal material processing handbook (first book) [M], compilation group of light metal processing handbook. Beijing: Metallurgical industry publishing house, 1979:105-107.
4. Wang Bing L iu Shuzhen. Influence of RE on the Anticorrosion Character of A l-Zn-M g-Cu High Strength Alloy [J ]. Shanghai Nonferrous Metals, 1997, 18 (3) : 111~ 113.
5. Yang Junjun, Nie Zuoren, Jin Tounan, Xu Guofu, Fu Jingbo, Ruan Haiqiong, Zuo Tieyong. Effect of Trace Rare Earth Element Er on High Pure Al, Trans. of Nonf. Met. Sci. of China, 2003, 13(5):1035-1039.