Formation of Intermetallic Phases in AlSi7Fe1 Alloy Processed Onboard the ISS

Gerhard Zimmermann; Elke Schaberger-Zimmermann; Sonja Steinbach; Lorenz Ratke

doi:10.4028/www.scientific.net/MSF.790-791.40

Paper Titles

Columnar-to-Equiaxed Transition in Solidification Processing of AlSi7 Alloys in Microgravity the CETSOL Project
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Non-Equilibrium Processing of Ni-Si Alloys at High Undercooling and High Cooling Rates
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In Situ Particle Layer Formation in a Al-Mn-Si Ternary Eutectic Alloy: Ground Reference and Microgravity Experiments
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Phase Field Modeling of β(Ti) Solidification in Ti-45at.%Al: Columnar Dendrite Growth at Various Gravity Levels
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Formation of Intermetallic Phases in AlSi7Fe1 Alloy Processed Onboard the ISS
p.40

Modelling of Al-7%wtSi-1wt%Fe Ternary Alloy: Application to Space Experiments with a Rotating Magnetic Field
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Microgravity and Hypergravity Observations of Equiaxed Solidification of Al-Cu Alloys Using In Situ X-Radiography Recorded in Real-Time on Board a Parabolic Flight
p.52

Influence of Iron Powder Addition on the Number of Primary Austenite Grains and Tensile Strength of Inoculated Cast Iron
p.59

A Numerical Study of the Influence of Pouring Technique on the As-Cast Structure of Al-Cu Ingots
p.67

HomeMaterials Science ForumMaterials Science Forum Vols. 790-791Formation of Intermetallic Phases in AlSi7Fe1...

Formation of Intermetallic Phases in AlSi7Fe1 Alloy Processed Onboard the ISS

Abstract:

This paper provides an analysis of the formation of intermetallic phases in AlSi7Fe1 alloy in samples processed onboard the ISS. Based on axial 2D cross-sections obtained from regions of pure diffusive growth and also solidified with forced melt flow, the sizes and distribution of intermetallic β-Al₅FeSi phases were determined for different solidification velocities. In diffusive case the phases are larger and more homogeneously distributed than in case of induced melt flow. Additionally, especially for lower solidification velocity, the enrichment of Si and Fe in the centre part of the sample results in a few but rather large β-Al₅FeSi particles.

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Materials Science Forum (Volumes 790-791)

Pages:

40-45

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.790-791.40

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Online since:

May 2014

Authors:

Gerhard Zimmermann*, Elke Schaberger-Zimmermann, Sonja Steinbach, Lorenz Ratke

Keywords:

Aluminium-Silicon-Iron Alloy, Intermetallic Phase, Melt Flow, Microgravity, Solidification

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