Effect of excess Si on age-hardening in deformed Al-Mg2Si alloys.
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- MATSUDA Kenji
- Faculty of Engineering, Toyama University
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- TERASAKI Minoru
- Hokuriku Fabrication Center, Shin-Nikkei Company, Ltd
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- TADA Shizuo
- Faculty of Engineering, Toyama University
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- IKENO Susumu
- Center for Cooperative Research, Toyama University
Bibliographic Information
- Other Title
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- 加工したAl‐Mg2Si合金の時効硬化に及ぼす過剰けい素の影響
- カコウシタ Al Mg2Si ゴウキン ノ ジコウ コウカ ニ オヨボス カジ
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Abstract
The effects of deformation and pre-aging on age-hardening of Al-Mg2Si alloys containing 0.4mass% excess silicon were investigated by Vickers micro-hardness test and transmission electron microscope observation. The time required to reach a maximum value of age-hardening curve (tmax) was shortened by deformation just prior to aging for all alloys. The maximum hardness value (Hmax) increased with increasing the amount of deformation in an 0.4%Mg2Si alloy aged at 473K. The precipitates became finer by the deformation prior to aging. The Hmax, values were independent of the amount of deformation and were constant for alloys containing Mg2Si ranged from 0.6 to 1.0%. For those alloys, the size of precipitates was larger and the number of precipitates was reduced by the addition of deformation. The tmax at 473K was shortened by pre-aging at 423K before deformation in an 0.6%Mg2Si alloy. The pre-aging and deformation treatment has also the effect to increase the Hmax to a higher value equivalent to that obtained by the conventional aging at 423K.
Journal
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- Journal of Japan Institute of Light Metals
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Journal of Japan Institute of Light Metals 45 (2), 95-100, 1995
The Japan Institute of Light Metals
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Details 詳細情報について
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- CRID
- 1390282681313766656
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- NII Article ID
- 10001724606
- 10003795701
- 10003904246
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- NII Book ID
- AN00069773
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- COI
- 1:CAS:528:DyaK2MXksF2jtL8%3D
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- ISSN
- 18808018
- 04515994
- http://id.crossref.org/issn/04515994
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- NDL BIB ID
- 3601765
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed