Microstructure and Mechanical Properties of Ti(C,N)-ZrO2-Ni-Mo Composite Cermet

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Ti(C0.7N0.3)-ZrO2-Ni-Mo cermet with 73.9%Ti(C0.7N0.3)-10%ZrO2-13%Ni-3.3%Mo(in mass) was fabricated by HP technology. The fabricated material possesses good mechanical properties with flexure strength (1264.4Mpa), fracture toughness (15 MPa.m1/2) and Vickers hardness (16.2GPa). The results of microstructure observation and analyses of the composite cermet by TEM, SEM and EDAX show that Mo2C nanoparticles are separated in the Ti(C,N) grains and the structure is similar to the “intragranular structure” in nanocomposite material. Smaller size t-ZrO2 and m-ZrO2 grains are distributed o n the boundaries of Ti(C,N) grains and the amount of m-ZrO2 is more than that of t-ZrO2.The growth of m-ZrO2 grain has an orientation on Ti(C,N) grain, which is propitious to the boundary bonding strength.

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Periodical:

Materials Science Forum (Volumes 471-472)

Edited by:

Xing Ai, Jianfeng Li and Chuanzhen Huang

Pages:

348-352

Citation:

L. He et al., "Microstructure and Mechanical Properties of Ti(C,N)-ZrO2-Ni-Mo Composite Cermet", Materials Science Forum, Vols. 471-472, pp. 348-352, 2004

Online since:

December 2004

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$38.00

[1] Y.J. Park, S.W. Kim and S. Kang: Materials Science and Engineering, A: Structural Materials Vol. 291 (2000), p.198.

[2] S.G. Xiao: Modern Cutting Tool Materials (Chongqing University Press, China 1992) (in Chinese).

[3] P. Lindahl and A.E. Rosen: Intern. J. of Refr. Metals & Hard Materials Vol. 18 (2000), p.273.

[4] N. Liu: Research On The Manufacturing Process And The Relationship Among Chemical Composition, Microstructure And Mechanical Properties of Ti(C, N) Based Cermets (Ph. D Dissertation, Huazhong University of Science and Technology, China 1994) (in Chinese).

[5] T. Nishimura, K. Murayama, T. Kitada, et al.: Intern. J. of Refr. Metals & Hard Materials Vol. 35(1985), p.31.

[6] W.H. Xiong, Z.H. Hu and K. Cui: Material Review Vol. 12 (1998), p.14 (in Chinese).

[7] N. Liu, X.M. Huang, J. Zhou, et al.: Journal of the Chinese Ceramic Society Vol. 27 (1999), p.750 (in Chinese).

[8] K.Y. Jun and C.L. Hu: Material Science and Engineering Vol. A209 (1996), p.213.

[9] N. Liu, X.M. Huang, J. Zhou, et al.: J. of the Chinese Ceramic Society Vol. 28 (2000), p.72 (in Chinese).

[10] M. Fukuhara, K. Fukazawa and A. Fukawa: Wear Vol. 102 (1985), p.195.

[11] P. Li and Y.D. Deng: Rare Metal Material and Engineering Vol. 24 (1995), p.17 (in Chinese).

[12] K. Niihara: Powder Metallurgy Vol. 37 (1990), p.348 (in Japanese).

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