Effect of TiC Content on Oxidation Behavior of Sintered WC-TiC-TaC Alloys

Hiroki Tanaka; Shigeki Mouri; Kenji Nakahara; Hideaki Sano; Guo Bin Zheng; Yasuo Uchiyama

doi:10.4028/www.scientific.net/MSF.534-536.1173

Paper Titles

Development of High Corrosion Resistant Mo₂NiB₂ Boride Base Cermets for Plastic Injection Molding Machine Parts
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Effect of Adding a Type of Binder Phase on The Microstructure, Properties and Heat Treatment of Steel Bonded TiC Cermets
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Effect of Secondary Carbide Addition on Properties of Ti(C_0.7N_0.3)-Ni Cermets
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Effect of Sinter/HIP Technology on Properties of TiC-NiMo Cermets
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Effect of TiC Content on Oxidation Behavior of Sintered WC-TiC-TaC Alloys
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Effects of Inhibitors on the Synthesization of WC/Co Composite Powders by Mechanochemical Method
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Electro Discharge Compaction of WC-Co Composite Material Containing Particles of Diamond
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Fabrication of Nano-Sized WC/Co Composite Powder by Direct Reduction and Carburization with Carbon
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Formation of Twinned WC Grains during Carbonization of Eta Phase (W₃Co₃C)
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HomeMaterials Science ForumMaterials Science Forum Vols. 534-536Effect of TiC Content on Oxidation Behavior of...

Effect of TiC Content on Oxidation Behavior of Sintered WC-TiC-TaC Alloys

Abstract:

The effect of TiC content on oxidation behavior of the sintered WC-TiC-TaC alloys with 2 mass% TaC and different TiC amount of 3-45 mass% was investigated through oxidation tests in air at 973K in order to clarify their oxidation mechanism at high temperature. Based on the results of mass change, SEM observation, elemental map analysis and composition analysis of the samples before and after the oxidation test, it was revealed that with increasing TiC content in the alloys, mass changes from oxidation and thickness of the oxidation scale decreased. Thus, it is considered that the main component of the scales changed from WO3 to TiO2 gradually with increasing TiC content in the alloys, and oxygen diffusing through the oxidation scale to the alloys was inhibited more and more.