The Redistribution and Alignment of Crystalline Flakes in a Bulk Metallic Glass Composite during Thermoplastic Forming

Wan Qiang Xu; Lalu Robin; Kevin J. Laws; Rong Kun Zheng; Michael Ferry

doi:10.4028/www.scientific.net/MSF.702-703.971

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Microstructural Analysis of Type 304 Metal Sleeve
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Process Parameter Impact on Microstructure of Laser Clad Inconel-Chromium Carbide Layers
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Structure-Property Correlations in Cathodic Arc Deposited TiAlN Coatings
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The Redistribution and Alignment of Crystalline Flakes in a Bulk Metallic Glass Composite during Thermoplastic Forming
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Ultrasonic Processing and Microstructural Analysis of AZ91 Magnesium Alloy
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Effect of Modes of Rolling on Mechanical Properties, Texture and Ballistic Performance of Al-7017 Alloy
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Effect of Modes of Rolling on Evolution of Texture and Yield Locus Anisotropy in a Multifunctional Ti-31Ta-12Nb-2V-8Zr-0.22O Alloy
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Effect of Roll Diameter and Modes of Rolling on Evolution of Texture in High Purity Aluminum
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The Redistribution and Alignment of Crystalline Flakes in a Bulk Metallic Glass Composite during Thermoplastic Forming

Abstract:

An In-situ Mg-based bulk metallic glass (BMG) composite containing 40% volume fraction of Mg-rich crystalline flakes was produced by die casting. During cooling from the melt, the flakes nucleate heterogeneously and subsequently grow with their broad faces parallel to the {0001} plane. This generated a uniform dispersion of randomly-oriented flakes within an amorphous matrix. When compressed uniaxially up to 60% reduction in the supercooled liquid (SCL) region, the flakes in this composite were substantially aligned their broad faces towards the compression plane that generated a strong //ND fibre texture.