本文通过粉末冶金法制备NiMo粘结的Ti(C,N)基金属陶瓷,研究NiMo粘结相含量和烧结温度对NiMo粘结的Ti(C,N)基金属陶瓷的组织和力学性能的影响.结果表明,随着NiMo粘结相含量的增加,硬质相颗粒弥散分布更加均匀,黑芯相得到细化,芯-环结构更加完整,环形相变厚,组织更加均匀.当Ni质量分数为30％时,在XRD图谱中出现明显的Ni4Mo类型的金属间化合物的衍射峰.粘结相含量越高,NiMo粘结的Ti(C,N)基金属陶瓷的抗弯强度越高,硬度越低.随着烧结温度升高,黑芯相尺寸变小,环形相变厚.抗弯强度随着温度先升高后降低,粘结相含量越高,抗弯强度峰值对应的烧结温度越低.1 430℃烧结的20NiMo金属陶瓷硬度HRA达到91,抗弯强度大于2 000 MPa.
参考文献
| [1] | Rajabi, A.;Ghazali, M. J.;Daud, A. R..Chemical composition, microstructure and sintering temperature modifications on mechanical properties of TiC-based cermet - A review[J].Materials & design,2015Feb.(Feb.):95-106. |
| [2] | 章宗城.性能优异的切削刀具材料--金属陶瓷[J].工具技术,2001(12):15-19. |
| [3] | D. Mari;S. Bolognini;G. Feusier.TiMoCN based cermets Part II. Microstructure and room temperature mechanical properties[J].International Journal of Refractory Metals & Hard Materials,20031/2(1/2):47-53. |
| [4] | 王洪涛;熊惟皓.Mo对Ti（C,N）基金属陶瓷包覆相结构与性能的影响[J].硬质合金,2006(4):203-207. |
| [5] | Guopeng Zhang;Weihao Xiong;Qingqing Yang.Effect of Mo addition on microstructure and mechanical properties of (Ti,W)C solid solution based cermets[J].International Journal of Refractory Metals & Hard Materials,2014Mar.(Mar.):77-82. |
| [6] | 陈珊;李保龙;敬勇;熊惟皓.Mo含量对Ti（C,N）基金属陶瓷在H2SO4溶液中腐蚀性能的影响[J].硬质合金,2015(2):95-101. |
| [7] | Zhang, Man;Yang, Qingqing;Xiong, Weihao;Zheng, Liyun;Huang, Bin;Chen, Shan;Yao, Zhenhua.Effect of Mo and C additions on magnetic properties of TiC-TiN-Ni cermets[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2015:700-704. |
| [8] | Irina Hussainova.Effect of microstructure on the erosive wear of titanium carbide-based cermets[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,20031/6(1/6):121-128. |
| [9] | Jakob Kubarsepp;Heinrich Klaasen;Juri Pirso.Behavior of TiC-base cermets in different wear conditions[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,20013/4(3/4):229-234. |
| [10] | 丰平;郑勇;刘文俊;熊惟皓.N含量对超细Ti（C,N）基金属陶瓷显微组织和力学性能的影响[J].稀有金属材料与工程,2005(z1):479-481. |
| [11] | Y. Ustinovshikov.TEM study of structural and phase transformations in the Ni_(75)Mo_(20)Al_5 alloy[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2014:119-125. |
| [12] | Yang, Qingqing;Xiong, Weihao;Zhang, Guopeng;Huang, Bin.Grain Growth in Ti(C,N)-Based Cermets During Liquid-Phase Sintering[J].Journal of the American Ceramic Society,20153(3):1005-1012. |
| [13] | Pingping Li;Jinwen Ye;Ying Liu.Study on the formation of core-rim structure in Ti(CN)-based cermets[J].International Journal of Refractory Metals & Hard Materials,2012Nov(Nov):27-31. |
| [14] | 郑勇;熊惟皓;宗校军.Ti（C,N）固溶体的价电子结构及其与硬度和塑性间的关系[J].稀有金属材料与工程,2002(1):13-16. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%