Effect of Mn on Fe phases in spray-deposited Al-25Si-xFe-yMn alloys

HUANG Hai-jun; ZHANG Ji-shan; FENG Hao

doi:10.13374/j.issn1001-053x.2010.02.012

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HUANG Hai-jun, ZHANG Ji-shan, FENG Hao. Effect of Mn on Fe phases in spray-deposited Al-25Si-xFe-yMn alloys[J]. Chinese Journal of Engineering, 2010, 32(2): 219-223. doi: 10.13374/j.issn1001-053x.2010.02.012

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HUANG Hai-jun, ZHANG Ji-shan, FENG Hao. Effect of Mn on Fe phases in spray-deposited Al-25Si-xFe-yMn alloys[J]. Chinese Journal of Engineering, 2010, 32(2): 219-223. doi: 10.13374/j.issn1001-053x.2010.02.012

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Effect of Mn on Fe phases in spray-deposited Al-25Si-xFe-yMn alloys

doi: 10.13374/j.issn1001-053x.2010.02.012

1. State Key Laboratory of Environmental Adaptability for Industrial Products, China Electric Apparatus Research Institute, Guangzhou 510300, China;
2. State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China

Received Date: 2009-06-29

Abstract

Abstract

Al-25Si-xFe-yMn alloys with the mass ratio of Mn to Fe between 0 and 1 were synthesized by spray deposition.The microstructure of the spray-deposited preforms was investigated by SEM,XRD and EDX.The results indicated that Mn addition could improve the morphology of Fe phases through forming particulate α-Al₁₅ (Fe,Mn)₃Si₂ phase to replace acicular δ-Al₄FeSi₂ and β-Al₅FeSi phases.When the mass ratio of Mn to Fe increased,the amount of particulate α-Al₁₅ (Fe,Mn)₃Si₂ phase would increase,whereas the amount of acicular phases reduced.When the mass ratio of Mn to Fe increased to 0.83 or 1,only particulate α-Al₁₅ (Fe,Mn)₃Si₂ phase could be observed in the deposited preform.
- hypereutectic Al-Si alloys,
- iron phase,
- manganese,
- spray deposition