Al-Mg-Si系合金の二段時効におよぼす合金組成の影響

馬場 義雄; 高島 章

doi:10.2464/jilm.19.90

馬場義雄, 高島章

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ジャーナルフリー

1969 年 19 巻 3 号 p. 90-98

DOI https://doi.org/10.2464/jilm.19.90

詳細

発行日: 1969/03/30 受付日: 1968/11/01 J-STAGE公開日: 2008/07/23 受理日: - 早期公開日: - 改訂日: -
訂正情報
訂正日: 2008/07/23 訂正理由: - 訂正箇所: 論文抄録訂正内容: Wrong : Effects of Mg (0.20.9 at.%) and Si (0.10.6 at.%) contents and trace of additional elements (0.010.2 at.%) on the two-step ageing phenomena of AI-Mg-Si alloys were studied by the measurements of hardness and electric resistivity and also by electron microscopy.
The phenomena of two-step ageing of AI-Mg-Si alloys highly depended upon the contents of Mg₂Si and additional elements as well as the conditions of pre-ageing. The pre-ageing led to either refining or coarsening of acicular precipitates in finally aged condition, according to the composition of alloys. Consequently, it resulted in either increase or decrease (negative effect) in strength of the alloys.
For AI-Mg-Si alloys containing more than about 1.1 at.% of Mg2Si the pre-ageing at room temperature caused coarsening of finally aged structure but it caused refining of precipitates for the alloys containing less than about 0.9 at.% of Mg₂Si. The negative effect of pre-ageing is interpretated as follows. It is based on the deleterions effect of impoverishment of solute atoms in matrix resulting from the clustering at room temperature, forming small clusters which modestly contribute to the strength.
The negative effect of pre-ageing of Al-0.70 at.% Mg-0.35 at.% Si (1.05 at.% Mg₂Si) alloy was decreased by the addition of transition elements such as Mn, Cr, Zr, V, and Fe, but increased by the addition of Ag, Cu, Be, Cd, and Zn. This may be caused by fast that the apparent supersaturation of Mg₂Si in the alloys is increased by the latter elements, but decreased by the former elements which easily form insoluble compounds with Si and Al atoms.
Right : Effects of Mg (0.20.9 at.%) and Si (0.10.6 at.%) contents and trace of additional elements (0.010.2 at.%) on the two-step ageing phenomena of AI-Mg-Si alloys were studied by the measurements of hardness and electric resistivity and also by electron microscopy.
The phenomena of two-step ageing of AI-Mg-Si alloys highly depended upon the contents of Mg₂Si and additional elements as well as the conditions of pre-ageing. The pre-ageing led to either refining or coarsening of acicular precipitates in finally aged condition, according to the composition of alloys. Consequently, it resulted in either increase or decrease (negative effect) in strength of the alloys.
For AI-Mg-Si alloys containing more than about 1.1 at.% of Mg₂Si the pre-ageing at room temperature caused coarsening of finally aged structure but it caused refining of precipitates for the alloys containing less than about 0.9 at.% of Mg₂Si. The negative effect of pre-ageing is interpretated as follows. It is based on the deleterions effect of impoverishment of solute atoms in matrix resulting from the clustering at room temperature, forming small clusters which modestly contribute to the strength.
The negative effect of pre-ageing of Al-0.70 at.% Mg-0.35 at.% Si (1.05 at.% Mg₂Si) alloy was decreased by the addition of transition elements such as Mn, Cr, Zr, V, and Fe, but increased by the addition of Ag, Cu, Be, Cd, and Zn. This may be caused by fast that the apparent supersaturation of Mg₂Si in the alloys is increased by the latter elements, but decreased by the former elements which easily form insoluble compounds with Si and Al atoms.

訂正日: 2008/07/23 訂正理由: - 訂正箇所: 引用文献情報訂正内容: Wrong : 3) O. R. Singleton: Iron Age, 192 (1963), 94.
4) P. E. Fortin: Metal Progress, 86 (1964), 119.
5) H. Cordier and W. Gruhl: Z. Metallk., 56 (1965), 669.
6) H. Borchers and M. Kainz: Z. Metallk., 52 (1961), 685.
7) H. A. Holl:J. Inst. Metals, 93 (1964-65), 364.
8) W.Lorimer and R. B. Nicholson: Acta Met., 14 (1966), 1009.
9) C. Panseri and T. Federight: J. Inst. Metals, 94 (1966), 99.
10) D. w. Pashley, M. H. Jacobs andJ. T. vietz: Phil. Mag., 16 (1967), 51.
12) Y. Murakami, O. Kawano, S. Komatsu, T. Ohnishi and T. Nakazawa: Trans. JIM, 9, suppl. (1968), 349.
14) H. Zoller and A. Ried: Aluminium, 41 (1965), 626.
15) D. W. Pashley, J. W. Rhodes and A. Sendorek: J. Inst. Metals 94 (1966), 41.
16) A. Kelly and R. B. Nicholson: Progress in Metal Science, B. Chalmers, Editor, Pergamon Press, 10 (1963), 289.
17) J. Takamura: Physical Metallurgy, R. W. Cahn, Editor, North-holland Publish. Co., (1965), 681.
18) Y. Baba: Trans. JIM, 7 (1966), 224.
19) Y. Baba: Trans. JIM, to be publsihed.
20) H. Hanemann and A. Schrader: Ternaere Legierungen des Aluminiums, Verlag Stahleisen M. B. H., (1952).
21) Y. Baba: Trans. JIM, 9 suppl. (1968), 356.

Right : 3) O. R. Singleton: Iron Age, 192 (1963), 94.
4) P. E. Fortin: Metal Progress, 86 (1964), 119.
5) H. Cordier and W. Gruhl: Z. Metallk., 56 (1965), 669.
6) H. Borchers and M. Kainz: Z. Metallk., 52 (1961), 685.
7) H. A. Holl:J. Inst. Metals, 93 (1964-65), 364.
8) W.Lorimer and R. B. Nicholson: Acta Met., 14 (1966), 1009.
9) C. Panseri and T. Federight: J. Inst. Metals, 94 (1966), 99.
10) D. W. Pashley, M. H. Jacobs and J. T. vietz: Phil. Mag., 16 (1967), 51.
12) Y. Murakami, O. Kawano, S. Komatsu, T. Ohnishi and T. Nakazawa: Trans. JIM, 9, suppl. (1968), 349.
14) H. Zoller and A. Ried: Aluminium, 41 (1965), 626.
15) D. W. Pashley, J. W. Rhodes and A. Sendorek: J. Inst. Metals 94 (1966), 41.
16) A. Kelly and R. B. Nicholson: Progress in Metal Science, B. Chalmers, Editor, Pergamon Press, 10 (1963), 289.
17) J. Takamura: Physical Metallurgy, R. W. Cahn, Editor, North-holland Publish. Co., (1965), 681.
18) Y. Baba: Trans. JIM, 7 (1966), 224.
19) Y. Baba: Trans. JIM, to be publsihed.
20) H. Hanemann and A. Schrader: Ternäere Legierungen des Aluminiums, Verlag Stahleisen M. B. H., (1952).
21) Y. Baba: Trans. JIM, 9 suppl. (1968), 356.

訂正日: 2008/07/23 訂正理由: - 訂正箇所: PDFファイル訂正内容: -

抄録

Effects of Mg (0.20.9 at.%) and Si (0.10.6 at.%) contents and trace of additional elements (0.010.2 at.%) on the two-step ageing phenomena of AI-Mg-Si alloys were studied by the measurements of hardness and electric resistivity and also by electron microscopy.
The phenomena of two-step ageing of AI-Mg-Si alloys highly depended upon the contents of Mg₂Si and additional elements as well as the conditions of pre-ageing. The pre-ageing led to either refining or coarsening of acicular precipitates in finally aged condition, according to the composition of alloys. Consequently, it resulted in either increase or decrease (negative effect) in strength of the alloys.
For AI-Mg-Si alloys containing more than about 1.1 at.% of Mg₂Si the pre-ageing at room temperature caused coarsening of finally aged structure but it caused refining of precipitates for the alloys containing less than about 0.9 at.% of Mg₂Si. The negative effect of pre-ageing is interpretated as follows. It is based on the deleterions effect of impoverishment of solute atoms in matrix resulting from the clustering at room temperature, forming small clusters which modestly contribute to the strength.
The negative effect of pre-ageing of Al-0.70 at.% Mg-0.35 at.% Si (1.05 at.% Mg₂Si) alloy was decreased by the addition of transition elements such as Mn, Cr, Zr, V, and Fe, but increased by the addition of Ag, Cu, Be, Cd, and Zn. This may be caused by fast that the apparent supersaturation of Mg₂Si in the alloys is increased by the latter elements, but decreased by the former elements which easily form insoluble compounds with Si and Al atoms.

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