Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 589, Issue -, Pages 25-28Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2013.11.145
Keywords
ZrAlSi; Complex modification; Microstructure; Mechanical properties
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Funding
- National Basic Research Program of China (973 Program) [2012CB825702]
- National Natural Science Foundation of China [51071097]
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In this study, the morphological evolution of ZrAlSi intermetallic in ternary Al-Si-Zr alloys was investigated. In hypereutectic Al-18Si alloy, the introduction of Zr results in the formation of blocky ZrAlSi particles. Besides, there form almost no primary Si, while replaced by ZrAlSi. Using ZrAlSi to modify primary Si and Sr to modify eutectic Si, complex modification effect can be realized in an Al-Si multicomponent piston alloy. Correspondingly, the mechanical properties were significantly improved. (C) 2013 Elsevier B. V. All rights reserved.
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