Jian-jun Wang, Jun-jie Hao, Zhi-meng Guo, and Song Wang, Plasma preparation and low-temperature sintering of spherical TiC–Fe composite powder, Int. J. Miner. Metall. Mater., 22(2015), No. 12, pp.1328-1333. https://dx.doi.org/10.1007/s12613-015-1201-0
Cite this article as: Jian-jun Wang, Jun-jie Hao, Zhi-meng Guo, and Song Wang, Plasma preparation and low-temperature sintering of spherical TiC–Fe composite powder, Int. J. Miner. Metall. Mater., 22(2015), No. 12, pp.1328-1333. https://dx.doi.org/10.1007/s12613-015-1201-0

Plasma preparation and low-temperature sintering of spherical TiC–Fe composite powder

  • A spherical Fe matrix composite powder containing a high volume fraction (82vol%) of fine TiC reinforcement was produced using a novel process combining in situ synthesis and plasma techniques. The composite powder exhibited good sphericity and a dense structure, and the fine sub-micron TiC particles were homogeneously distributed in the α-Fe matrix. A TiC–Fe cermet was prepared from the as-prepared spherical composite powder using powder metallurgy at a low sintering temperature; the product exhibited a hardness of HRA 88.5 and a flexural strength of 1360 MPa. The grain size of the fine-grained TiC and special surface structure of the spherical powder played the key roles in the fabrication process.
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