The influence of zirconium on the early stages of aging of a ternary AlZnMg alloy
作者： A.K. Mukhopadhyay , Q.B. Yang , S.R. Singh
DOI: 10.1016/0956-7151(94)90406-5
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摘要: The commercial 7000 series aluminum alloys are based on AlZnMg and AlZnMgCu systems. These commonly contain trace amounts of zirconium for grain refining purposes. In this paper, the influence early stages aging an alloy is considered. It shown that two different kinds microstructure developed materials with without when heat treated slightly above GP (Guinir Preston) zone solvus. For ternary alloy, consists both metastable MgZn2(ν′)phase “stable zones(/clusters)”; stable zones act as nucleation sites ν′ phase. Whilst, in case bearing only a heterogeneous distribution under precipitates. observations discussed relation to critical role vacancies formation stability precipitate nuclei, reducing total numbers available excess these materials.
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sci-hub.se 参考文章(26)
N Ryum, Precipitation and recrystallization in an A1-0.5 WT.% Zr-alloy Acta Metallurgica. ,vol. 17, pp. 269- 278 ,(1969) , 10.1016/0001-6160(69)90067-4
L. F. Mondolfo, Aluminum Alloys: Structure and Properties ,(1976)
J. M. Galbraith, M. H. Tosten, P. R. Howell, On the nucleation ofθ′ and T1 on Al3Zr precipitates in Al-Li-Cu-Zr alloys Journal of Materials Science. ,vol. 22, pp. 27- 36 ,(1987) , 10.1007/BF01160548
S. Özbilen, H.M. Flower, Zirconium-vacancy binding and its influence on S′-precipitation in an AlCuMg alloy Acta Metallurgica. ,vol. 37, pp. 2993- 3000 ,(1989) , 10.1016/0001-6160(89)90335-0
Zvi Katz, Nils Ryum, Precipitation kinetics in Al-alloys Scripta Metallurgica. ,vol. 15, pp. 265- 268 ,(1981) , 10.1016/0036-9748(81)90341-0
P. E. Marth, H. I. Aaronson, G. W. Lorimer, T. L. Bartel, K. C. Russell, Application of heterogeneous nucleation theory to precipitate nucleation at GP zones Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science. ,vol. 7, pp. 1519- 1528 ,(1976) , 10.1007/BF02656394
Kazuhiko Asano, Ken-ichi Hirano, Two-Step Ageing in an Aluminum-5 wt% Zinc-1 wt% Magnesium Alloy Materials Transactions Jim. ,vol. 9, pp. 149- 155 ,(1968) , 10.2320/MATERTRANS1960.9.149
SG Psakhie, SV Alekseev, VE Panin, None, Influence of Shear on the Binding Energy of Complexes of Impurities and Vacancy in Aluminium physica status solidi (b). ,vol. 153, pp. K11- K15 ,(1989) , 10.1002/PSSB.2221530145
A.K. Mukhopadhyay, G.J. Shiflet, E.A. Starke, Role of vacancies on the precipitation processes in Zr modified aluminum based alloys Scripta Metallurgica Et Materialia. ,vol. 24, pp. 307- 312 ,(1990) , 10.1016/0956-716X(90)90261-E
H. A. Holl, The Influence of a Subgrain Structure on Precipitation-Hardening and Nucleation of Precipitates in an Al-Zn-Mg Alloy Metal Science Journal. ,vol. 1, pp. 111- 118 ,(1967) , 10.1179/MSC.1967.1.1.111