Hardness and Electrical Resistivity Changes during Ageing of Rapidly Solidified Al–12.5Si–1Mg Alloy
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- Tawfik N. L.
- Physics Department, National Research Centre
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- Hady E. M. Abdel
- Physics Department, National Research Centre
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- Kassem N. E.
- Physics Department, Helwan University
書誌事項
- タイトル別名
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- Hardness and Electrical Resistivity Changes during Ageing of Rapidly Solidified Al–12.5Si–1Mg Alloy
- Hardness and Electrical Resistivity Cha
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Ribbons with the composition Al–12.5Si–1Mg were prepared by melt spinning. X-ray diffraction of as melt spun ribbons showed complete solubility of Si in aluminum. The as melt spun resistivity was 36 μΩ cm for ribbons of 24 μm thickness. This value relaxes to 9.0 μΩ cm on prolonged annealing. The hardness of the as melt spun ribbons was 1500 MN/m2, and relaxes to reach a value of 800 MN/m2 after prolonged annealing. The activation energy estimated from isothermal ageing ranged from 1.05 to 1.26 eV. An equation is given to fit the kinetics of relaxation. Discussion of resistivity and hardness relaxation is given and is related to ordering and silicon precipitation.
収録刊行物
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- Materials Transactions, JIM
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Materials Transactions, JIM 38 (5), 401-405, 1997
社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390001204245495808
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- NII論文ID
- 10002452477
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- NII書誌ID
- AA10699969
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- COI
- 1:CAS:528:DyaK2sXkt1aku7Y%3D
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- ISSN
- 2432471X
- 09161821
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- NDL書誌ID
- 4231127
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
