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Effect of TiC content on the microstructure and mechanical properties of Mo2FeB2 based cermets |
CONG Shan-hai,PENG Jia-jian,TAO Ze-xu,ZHANG Zhi-wei |
Key Laboratory of Ferrous Metallurgy and Resouces Utilization, Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, China |
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Abstract Adding 3%-12% (mass percent) TiC powder into the raw materials to prepare Mo2FeB2-based cermet. The microstructure and micro-area composition of the samples were studied by using optical microscope, scanning electron microscope and EDS after ball-milling, compacting and vacuum sintering processes. The mechanical properties were also studied by using hardness tester and universal testing machines. The wear resistance was analyzed using the method of grinding wheel ground. Results indicate that, the addition of TiC is benefit for refining the microstructure and improving uniformity of Mo2FeB2 based cermets, and the hardness, bending strength and wear resistance of Mo2FeB2 based cermets are greatly improved with TiC addition.
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Received: 23 March 2016
Published: 09 June 2017
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