Journal
RESULTS IN PHYSICS
Volume 7, Issue -, Pages 1051-1054Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.rinp.2017.02.040
Keywords
alpha-Al(Fe,Mn) Si; Morphology; Microstructure; Tensile properties
Funding
- National Natural Science Foundation of China [51601106, 51571133]
- Fundamental Research Funds of Shandong University
- China Postdoctoral Science Foundation [2016M600536]
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beta-Al5FeSi is preferred to form in Al-Si-Fe alloys, normally exhibiting needlelike, which is harmful for the mechanical properties. In this paper, with the addition of 1%, 1.5% and 3% Mn into an Al-6Si-2Fe alloy, b-Al5FeSi phase was found to transform to skeleton, flower-like and coarse dendritic alpha-Al(Fe, Mn) Si, respectively. The novel flower-like alpha-Al(Fe, Mn) Si crystals contain developed branches with the average diameter of similar to 200 nm, performing strengthening effect on the tensile property. Detailed morphologies of alpha-Al(Fe, Mn) Si phase and the formation mechanism were discussed. (C) 2017 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license.
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