Ti(C<sub>0.7</sub>N<sub>0.3</sub>)对(Ti,W,Ta)C-Mo-Ni系金属陶瓷组织与性能的影响

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (1100 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要以(Ti,W,Ta)C和Ti(C_0.7N_0.3)固溶体颗粒共同作为硬质相原料,采用粉末冶金工艺制备Ti(C,N)基金属陶瓷材料,研究Ti(C_0.7N_0.3)添加量对(Ti,W,Ta)C-Mo-Ni系金属陶瓷组织与性能的影响。结果表明,(Ti,W,Ta)C-Mo-Ni系金属陶瓷由黑芯-灰环结构和白芯-灰环结构的2种硬质相和粘结相构成,黑芯相为Ti(C_0.7N_0.3)颗粒,白芯相为 (Ti,W,Ta)C颗粒。随Ti(C_0.7N_0.3)添加量增加,黑芯-灰环结构增多,环形相变薄。Ti(C_0.7N_0.3)固溶体的加入对(Ti,W,Ta)C-Mo-Ni系金属陶瓷硬度的影响很小,而抗弯强度随Ti(C_0.7N_0.3)增加呈先升高后降低趋势。当Ti(C_0.7N_0.3)添加量(质量分数)为40%时,金属陶瓷的力学性能最优,硬度(HRA)为90.3,抗弯强度为1 748 MPa。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	蔺绍江
	陈肖
	熊惟皓

关键词 ：金属陶瓷, 固溶体, 组织, 环形相, 硬度, 抗弯强度

Abstract：The Ti(C,N)-based cermet materials were prepared by powder metallurgy using (Ti,W,Ta) C and Ti(C_0.7N_0.3) as hard phase materials. The effect of Ti(C_0.7N_0.3) additions on the microstructures and properties of (Ti,W,Ta)C-Mo-Ni cermets has been studied. The results indicate that the microstructure of (Ti,W,Ta)C-Mo-Ni cermets consist of black core-grey rim structure and white core-grey rim structure. The black cores is Ti(C_0.7N_0.3) particle and the white cores is (Ti,W,Ta)C particles. With increasing Ti(C_0.7N_0.3) addition, black cores increase and the rims become thinner. Adding Ti (C_0.7N_0.3) solid solution has little effect on the hardness of (Ti,W,Ta)C-Mo-Ni cermets, while the bending strength increases first and then decreases with the increase of Ti(C_0.7N_0.3). When the Ti(C_0.7N_0.3) content is 40%, the optimal properties of (Ti,W,Ta)C-Ti(C_0.7N_0.3)-Mo-Ni cermets is obtained, the hardness (HRA) is 90.3 and the bending strength is 1 748 MPa, respectively.

Key words： cermet solid solution microstructures annular phase hardness bending strength

收稿日期: 2019-09-23 出版日期: 2020-06-19

ZTFLH:

TB331

基金资助:湖北省自然科学基金项目(2018CFB718); 湖北理工学院优秀青年科技创新团队资助计划项目(13xtz02)

通讯作者: 蔺绍江,副教授,博士。电话：18971781105;E-mail: 7370478@qq.com

引用本文:

蔺绍江, 陈肖, 熊惟皓. Ti(C_0.7N_0.3)对(Ti,W,Ta)C-Mo-Ni系金属陶瓷组织与性能的影响[J]. 粉末冶金材料科学与工程, 2020, 25(1): 11-15.
LIN Shaojiang, CHEN Xiao, XIONG Weihao. Effects of Ti(C_0.7N_0.3) addition on the microstructure and properties of (Ti,W,Ta)C-Mo-Ni cermets. Materials Science and Engineering of Powder Metallurgy, 2020, 25(1): 11-15.

链接本文:

http://pmbjb.csu.edu.cn/CN/ 或 http://pmbjb.csu.edu.cn/CN/Y2020/V25/I1/11

[1] 刘毅, 张鹛媚, 康希越, 等. w(Co)/w(Ni)对Ti(C,N)基金属陶瓷高温氧化和耐腐蚀性能的影响[J]. 粉末冶金材料科学与工程, 2019, 24(1): 27-36.
LIU Yi, ZHANG Meimei, KANG Xiyue, et al.Effects of w(Co)/w(Ni) ratio on high-temperature oxidation and corrosion resistant behavior in Ti(C,N)-based cermets[J]. Materials Science and Engineering of Powder Metallurgy, 2019, 24(1): 27-36.
[2] LIU Aijun, LIU Ning.Effect of granule size and WC content on microstructure and mechanical properties of double structure Ti(C,N) based cermets[J]. Rare Metal Materials and Engineering, 2019, 48(2): 375-384.
[3] 马调调. Ti(C,N)基金属陶瓷性能影响因素及发展趋势[J]. 陶瓷, 2018(7): 20-27.
MA Diaodiao.Influencing factors and development trend of Ti (C,N)-based cermets[J]. Ceramics, 2018(7): 20-27.
[4] 肖水清, 刘杰, 肖白军, 等. 实现Ti(C,N)基金属陶瓷强韧化的技术路径[J]. 材料导报, 2018, 32(7): 1129-1138.
XIAO Shuiqing, LIU Jie, XIAO Baijun, et al.Towards high-strength and high-toughness Ti(C,N)-based cermets: A technological review[J]. Materials Review, 2018, 32(7): 1129-1138.
[5] KIEFFER R, ETTMAYER P.Modern Development in Powder Metallurgy[M]. New York: Plenum Press, 1971, 5: 201-203.
[6] 许育东, 刘宁, 石敏, 等. 纳米改性Ti(C,N)基金属陶瓷研究进展[J]. 硬质合金, 2005, 22(2): 112-116.
XU Yudong, LIU Ning, SHI Min, et al.Research progress of Ti(C,N) cermets with nano modification[J].Cemented Carbide, 2005, 22(2): 112-116.
[7] 熊素建, 熊计, 郭智兴, 等. 纳米Ti(C,N)基金属陶瓷制备技术研究进展[J]. 硬质合金, 2009, 26(3): 194-200.
XIONG Shuji, XIONG Ji, GUO Zhixing, et al.The process of research on the fabrication of nano-Ti(C,N)-based cermet[J]. Cemented Carbide, 2009, 26(3): 194-200.
[8] NISHIMURA T, MURAYAMA K, KITADA T, et al.Some properties of cermet sintered in nitrogen gas[J]. International Journal Refractory Metals and Hard Materials, 1985; 35(1): 31-33.
[9] AHN S Y, KANG S.Formation of core/rim structure in Ti(C,N)-WC-Ni cermets via a dissolution and precipitation process[J]. Journal of American Ceramic Society, 2000, 83(6): 1489-1494.
[10] KIM S, MIN K, KANG S.Rim structure in Ti(C_0.7N_0.3)-WC-Ni cermets[J]. Journal of American Ceramic Society, 2003, 86(10): 1761-1766.
[11] 李晨辉, 余立新, 熊惟皓. 硬质相粒度对金属陶瓷断裂韧性的影响[J]. 复合材料学报, 2003, 20(1): 1-6.
LI Chenhui, YU Lixin, XIONG Weihao.Effect of hard phases grain size on cermets fracture toughness[J]. Acta Materiae Compositae Sinica, 2003, 20(1): 1-6.
[12] 刘文俊, 熊惟皓, 郑勇. Ti(C,N)基金属陶瓷断口形貌及增韧机理[J]. 中国有色金属学报, 2006, 16(5): 800-804.
LIU Wenjun, XIONG Weihao, ZHEN Yong.Appearance of fracture and toughening mechanisms of Ti(C,N)-based cermets[J]. The Chinese Journal of Nonferrous Metals, 2006, 16(5): 800-804.