采用自制的多元复式碳(氮)化物陶瓷粉末制备少Mo的(Ti,W,Ta,Mo)(C,N)-(Co,Ni)金属陶瓷.研究了粉末相组成对金属陶瓷组织及性能的影响.结果表明,多元复式碳(氮)化物固溶体的晶格常数与元素的固溶度有很好的对应关系.金属陶瓷中含Ta,W等重金属元素的多元复式碳化物的加入,有利于重金属元素向粘结相中均匀扩散,相对减缓了低元相Ti(C,N)的分解,使材料的性能得到较大的提高,组织主要表现为单层环形相结构特征,富Ti硬质相减少,富(Ta,W)硬质相增多,且晶粒细小,无团聚现象.
参考文献
[1] | Ettmayer P, Lengauerw. The story of cermets [J]. Powder Met Inter, 1989,21(2):37-48. |
[2] | Zackrisson J, Rolander U, Weinl G, et al. Microstructure of the surface zone in a heat-treated cermet material. International Journal of Refractory Metals & Hard Materials, 1998,16(3):315-322. |
[3] | Nishimura T, Murayama K, Kitada T, et al. Some properties of cermet sintered in nitrogen gas [J]. Int J Refractory Metals Hard Materials,1985,35(1):31-33. |
[4] | Lindal P, Rosen A E, Gustafson P, et al. Effect of pre-alloyed raw materials on the microstructure of a (Ti,W)(C,N)-Co cermet. International Journal of Refractory Metals & Hard Materials, 2000,18(3):273-279. |
[5] | Zhang S, Qin C D, Lim L C. Solid solution extent of WC and TaC in Ti(C,N) as revealed by lattice parameter increase [J]. International Journal of Refractory Metals & Hard Materials, 1993-1994,12(3):329-333. |
[6] | Chen L M, Lengauer W, Dreyer K. Advances in modern nitrogen-containing hardmetals and cermets [J]. International Journal of Refractory Metals & Hard Materials,1999-2000, 18(2):153-161. |
[7] | Zackrisson J, Andren H O. Effect of carbon content on the microstructure and mechanical properties of (Ti,W,Ta,Mo)(C,N)-(Co,Ni) cermets [J]. International Journal of Refractory Metals & Hard Materials,1999, 17(3):265-273. |
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