A Formation Map of Iron-Containing Intermetallic Phases in Recycled Cast Aluminum Alloys

被引：46
作者：
Cinkilic, E. [1 ]
Ridgeway, C. D. [1 ]
Yan, X. [2 ]
Luo, A. A. [1 ,3 ]
机构：
[1] Ohio State Univ, Dept Mat Sci & Engn, 116 W 19Th Ave, Columbus, OH 43210 USA
[2] Alcoa Tech Ctr, New Kensington, PA 15068 USA
[3] Ohio State Univ, Dept Integrated Syst Engn, Columbus, OH 43210 USA
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2019年 / 50卷 / 12期
基金：
美国国家科学基金会;
关键词：
FE-RICH INTERMETALLICS; MECHANICAL-PROPERTIES; COOLING RATE; IN-SITU; AL; MANGANESE; MN; MICROSTRUCTURE; NUCLEATION; GROWTH;
D O I：
10.1007/s11661-019-05469-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The cooling rate-dependent modification effect of Mn on the formation of Fe-containing intermetallic phases during solidification of Al-Si-Mg secondary cast aluminum alloys [containing 0.5 to 1 pct Fe (All compositions are in wt pct unless otherwise stated.)] was investigated by CALculation of PHAse Diagrams (CALPHAD) modeling and solidification experiments. The critical Mn concentration required to prevent the formation of detrimental beta-Al5FeSi was found to be dependent on both the alloy composition (particularly the Fe/Mn ratio) and the cooling rate. A map of Fe/Mn ratio vs cooling rate was created, to summarize the metallurgical conditions of Fe-rich intermetallic phase formation. By understanding such formation conditions, the microstructure of aluminum castings can be controlled to create low-cost secondary alloys with high Fe content.
引用
收藏
页码：5945 / 5956
页数：12
相关论文
共 26 条
  • [1] Awano Y., 1990, AFS T, V98, P889
  • [2] Secondary Al-Si-Mg High-pressure Die Casting Alloys with Enhanced Ductility
    Boesch, Dominik
    Pogatscher, Stefan
    Hummel, Marc
    Fragner, Werner
    Uggowitzer, Peter J.
    Goeken, Mathias
    Hoeppel, Heinz Werner
    [J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2015, 46A (03): : 1035 - 1045
  • [3] The solidification characteristics of Fe-rich intermetallics in Al-11.5Si-0.4Mg cast alloys
    Cao, X
    Campbell, J
    [J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2004, 35A (05): : 1425 - 1435
  • [4] COUTURE A, 1981, INT CAST MET J, V6, P9
  • [5] Crepeau P.N., 1995, AFS T, V103, P361
  • [6] Interactions between iron, manganese, and the Al-Si eutectic in hypoeutectic Al-Si alloys
    Dinnis, C. M.
    Taylor, J. A.
    Dahle, A. K.
    [J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2006, 37A (11): : 3283 - 3291
  • [7] As-cast morphology of iron-intermetallics in Al-Si foundry alloys
    Dinnis, CM
    Taylor, JA
    Dahle, AK
    [J]. SCRIPTA MATERIALIA, 2005, 53 (08) : 955 - 958
  • [8] Improving aluminum recycling: A survey of sorting and impurity removal technologies
    Gaustad, Gabrielle
    Olivetti, Elsa
    Kirchain, Randolph
    [J]. RESOURCES CONSERVATION AND RECYCLING, 2012, 58 : 79 - 87
  • [9] Evolution of Fe based intermetallic phases in Al-Si hypoeutectic casting alloys: Influence of the Si and Fe concentrations, and solidification rate
    Gorny, Anton
    Manickaraj, Jeyakumar
    Cai, Zhonghou
    Shankar, Sumanth
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2013, 577 : 103 - 124
  • [10] The effects of Mn additions on the microstructure and mechanical properties of Al-Si-Cu casting alloys
    Hwang, J. Y.
    Doty, H. W.
    Kaufman, M. J.
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 488 (1-2): : 496 - 504
123