Mechanical Properties of High Strength Al-Mg-Si Alloy during Solidification
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- Nagaumi Hiromi
- Nikkei Research & Development Center (NRDC), Nippon Light Metal Company Ltd.
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- Suvanchai Pongsugitwat
- Department of Metallurgical Engineering, Faculty of Engineering, Chulalongkorn University
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- Okane Toshimitsu
- Digital Manufacturing Research Center, National Institute of Advanced Industrial Science and Technology (AIST)
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- Umeda Takateru
- Department of Metallurgical Engineering, Faculty of Engineering, Chulalongkorn University Professor Emeritus, The University of Tokyo
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Abstract
Mechanical properties of high strength Al-Mg-Si alloy during solidification have been investigated. Tensile strength and ductility have been measured by using an electromagnetic induction heating tensile machine. The relation between solid fraction and temperature was calculated by the Gulliver-Scheil model applied with the thermodynamic data-base Thermo-Calc for multi-component system, and its validity was confirmed, comparing with the experiment. Zero Strength Temperature (ZST) and Zero Ductility Temperature (ZDT) were evaluated and correlated with the corresponding solid fraction. Furthermore, the capability of the high temperature tensile test to apply to the break-out of direct chill (DC) casting was examined, comparing the breaking section of the tensile test sample with that of DC billet. Main conclusions are as follows: (1) ZST and ZDT were 893 and 883 K at which the corresponding solid fraction were 0.69 and 0.77, respectively. (2) Breaking sections of the tensile testing sample and DC billet had a similar rupture structure where intergranular fracture was observed. Consequently, it was considered that breaking elongation and breaking strength that were obtained by the present tensile test can be used as one of the criteria of Direct-Chill casting crack formation.
Journal
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 47 (12), 2918-2924, 2006
The Japan Institute of Metals and Materials
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Details 詳細情報について
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- CRID
- 1390001204250327936
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- NII Article ID
- 130004452994
- 10018421340
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- NII Book ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL BIB ID
- 8587787
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed