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.
从善海,彭家健,陶则旭,张志伟. TiC含量对Mo2FeB2基金属陶瓷的组织与力学性能的影响[J]. , 2017, 27(03): 49-52.
CONG Shan-hai,PENG Jia-jian,TAO Ze-xu,ZHANG Zhi-wei. Effect of TiC content on the microstructure and mechanical properties of Mo2FeB2 based cermets. , 2017, 27(03): 49-52.
[1] 胡梅,从善海,张志伟.WC增强Mo2FeB2基金属陶瓷的组织与性能研究[J].稀有金属与硬质合金, 2015,43(4),P29-33. [2] ZHANG S C, Hilmas G E, Fahrenholtz W G. Pressureless densification of zirconium diboride with boron carbide additions [J]. Journal of the American Ceramic Society, 2006, 89(5): 1544-1500.[3] Fathrenholtz W G, Hilmas G E, Talmy I G, et al. Refractory diborides of zirconium and hafnium[J].Journal of the American Ceramic Society, 2007, 90(5): 1347-1364.[4] 王永国,李兆前.反应硼化烧结法制备三元硼化物基耐磨覆层材料[J]. 材料科学与工程, 2002, 20(2): 210-213.[5] 张志伟,从善海,胡梅. NbC含量对Mo2FeB2基金属陶瓷的组织和力学性能的影响[J].粉末冶金工业, 2015,25(5),P52-55.[6] QIAN H L, CHAO M J, TIAN D Y, et al. In situ synthesized TiC-VC particulate reinforced Ni-based composite coating produced by laser cladding [J]. Laser Journal, 2011, 32(4): 33-35.