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http://dx.doi.org/10.4150/KPMI.2005.12.2.131

Sintering Behavior of 7xxx Series Al Blended Powder with Variation of Heating Rate  

Kang Shin Pil (Division of Materials Science and Engineering, Hanyang University)
Min Kyung Ho (Division of Materials Science and Engineering, Hanyang University)
Park Hyun Woo (Division of Materials Science and Engineering, Hanyang University)
Chang Si-Young (Department of Materials Engineering, Hankuk Aviation University)
Kim Young Do (Division of Materials Science and Engineering, Hanyang University)
Publication Information
Journal of Powder Materials / v.12, no.2, 2005 , pp. 131-135 More about this Journal
Abstract
7xxx series Al alloy has the most attractive properties including its excellent high specific strength, stress corrosion cracking and corrosion-resistance. However, in case of the Al-Zn system, the liquid phase has a transient aspect because of the high solid solubility of Zn in Al. Therefore, transient liquid phase sintering behavior was observed during the sintering process. And the amount of liquid and its duration were influenced by the process variables including heating rate and final sintering temperature. At high heating rates($100^{\circ}C/min$), the liquid fraction increased during sintering because diffusion was minimized and therefore local saturation could easily occur. The sintered density increased with increasing heating rate.
Keywords
7xxx series Al alloy; Supersolidus liquid phase sintering; Transient liquid phase sintering; Heating rates;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 T. B. Sercombe and G. B. Schaffer : Mater. Sci. Eng. A, 268 (1999) 32   DOI   ScienceOn
2 P. E. Mattews: Int. J. Powder Metall., 4 (1968) 39
3 R. N. Lumley and G. B. Schaffer : Scripta Mater., 35 (1996) 5   DOI   ScienceOn
4 K. H. Min, D.-G.Kim, S.-Y. Chang, T.-W. Lim and Y. D. Kim : J. Kor. Powder Metall. Ins., 10 (2003) 40   DOI   ScienceOn
5 I. J. Polmer: Light Alloys, Arnold London, 1995, 118
6 R. N. Lumley and G. B. Schaffer: Scripta Mater., 35 (1996) 592   DOI   ScienceOn
7 R. Tandon and R. M. German : Int. J. Powder Metall., 30 (1994) 435
8 Min Suk Kong, Ei Tae Bae, Kyung Ho Min, Panyu, Si- Young Chang, Young Do Kim : J. Korean Powder Metall. Inst., 11 (2004) 1 (Korean)