Journal article
The influence of various Mg contents on the microstructures, mechanical properties and thermal expansion behaviors of P-modified Al–50Si alloys
Journal of materials science. Materials in electronics, v 30(21), pp 19362-19373
01 Nov 2019
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
In this work, the evolutions on the microstructure, mechanical performance as well as thermal expansivity of hypereutectic Al–50Si alloys with different Mg contents were investigated in detail. Besides that, the growth mechanism of the five-fold branch-like primary Si crystal was also explained in the view of thermodynamics. The results indicated that the size of primary Si crystal and the thermal expansivity showed upward trends with the increase of Mg content but the mechanical property presented a downward trend. Moreover, as the Mg content rose, the morphologies of primary Si crystals in the P-modified Al–50Si–xMg (x = 0, 5, 10 wt%) alloy changed from octahedron-like to plate-like and fivefold branch-like. The reason of these adverse phenomena was attributed to the formation of Mg
3
P
2
phase caused by the reaction between Mg element and AlP compound, which will generate a poisoning effect and worsen the performances of the alloys.
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Details
- Title
- The influence of various Mg contents on the microstructures, mechanical properties and thermal expansion behaviors of P-modified Al–50Si alloys
- Creators
- Tao Jiang - Northeastern UniversityChuang Yu - Northeastern UniversityBoyue Xu - Key Laboratory of Electromagnetic Processing of Materials of Ministry of Education, Northeastern UniversityHao Cheng - Northeastern UniversityGuangming Xu - Northeastern University
- Publication Details
- Journal of materials science. Materials in electronics, v 30(21), pp 19362-19373
- Publisher
- Springer US
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000495909800001
- Scopus ID
- 2-s2.0-85074164411
- Other Identifier
- 991021886374604721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Engineering, Electrical & Electronic
- Materials Science, Multidisciplinary
- Physics, Applied
- Physics, Condensed Matter