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Materials 2018, 11(5), 809; https://doi.org/10.3390/ma11050809

Microstructure Evolution of AlSi10Mg(Cu) Alloy Related to Isothermal Exposure

1,2,3
,
4,* , 1,2,3
,
1,2,3
and
1,2,3,*
1
Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
2
The Collaborative Innovation Center for Advanced Aero-Engine (CICAAE), Beijing University of Aeronautics and Astronautics, Beijing 100191, China
3
Beijing Key Laboratory of Advanced Nuclear Materials and Physics, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
4
ELI-ALPS, ELI-HU Non-Profit Limited, Dugonics ter 13, Szeged 6720, Hungary
*
Authors to whom correspondence should be addressed.
Received: 17 March 2018 / Revised: 28 April 2018 / Accepted: 9 May 2018 / Published: 16 May 2018
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Abstract

The mechanical properties and corrosion resistance changes of AlSi10Mg(Cu) alloy under different isothermal exposure conditions have been investigated by tensile experiments and electrochemical testing. The results show that isothermal exposure has a significant influence on the mechanical properties and corrosion resistance. Tensile strength is more sensitive to the higher exposure temperature, while the corrosion resistance is greater affected by the lower exposure temperature and shorter time. Microstructure evolution of AlSi10Mg(Cu) alloy related to different isothermal exposure condition has also been studied by using transmission electron microscopy (TEM). The results indicate that the isothermal exposure changed the type and density of nanoscale precipitates in the alloy, which in turn induced the change of performance of the alloy. View Full-Text
Keywords: isothermal exposure; microstructure; mechanical properties; corrosion resistance; microstructure evolution isothermal exposure; microstructure; mechanical properties; corrosion resistance; microstructure evolution
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Cai, C.; Geng, H.; Wang, S.; Gong, B.; Zhang, Z. Microstructure Evolution of AlSi10Mg(Cu) Alloy Related to Isothermal Exposure. Materials 2018, 11, 809.

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