Degradation Behavior of Tungsten in Molten Aluminum

Hong Feng Luo; Jing Wu; Yu Deng; Wei Ping Chen

doi:10.4028/www.scientific.net/AMR.415-417.2262

Paper Titles

Experimental Investigation of Tensile Properties and Fracture Mechanism of WC_P/Cu Composites Reinforced with Different WC_P Volume Fraction
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Improved Properties of CENR/PP Blends by Using Compatibilizers for Promoting the Interfacial Adhesion between Phases
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Evaporation Characteristics of Ammonium Formate-Urea-Water Solution Droplet for SCR Systems
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A Study on the Structural Design and Sensing Performance of Conductive Woven Fabric Embedding CCFs
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Degradation Behavior of Tungsten in Molten Aluminum
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Nonlinear Constitutive Equation and Elastic Constant of Rubber Material
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Mechanism and Effect of Electrochemical Modification on Physicochemical Soft Rock
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The Compaoparison of Characteristics of Fracture Toughness of Materials for Nuclear Piping by Use of Various Types of Specimens
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High-Pressure Electronic and Optical Properties of α-Si₃N₄
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Degradation Behavior of Tungsten in Molten Aluminum

Abstract:

Corrosion of tungsten in molten aluminum was investigated by static immersion tests at 700, 750 and 800°C temperature for 8-120 h. In all cases, the Al3W intermetallic compound was formed. The intermetallic layer broke up as long as it grew due to thermal stresses and dispersed in the molten aluminum. The weight-loss of tungsten varied linearly with time. The corrosion rate increased with temperature and the activation energy was nearly 87.92 kJ mol^-1.