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Effects of added TiC on properties of high chromium white iron
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Beijing Jiaotong University

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    Abstract:

    High chromium white iron composites reinforced with TiC (TiC/HCWI) were prepared by hot pressing of TiC and high chromium white iron (HCWI) powders. The effects of TiC on microstructure, phase composition, mechanical properties and wear resistance of TiC/HCWI were studied. Results showed that the growth of M7C3(M = Fe, Cr) in HCWI was effectively inhibited by TiC grains, refining the microstructure of HCWI. Rockwell hardness, fracture toughness, flexural strength and wear resistance of the fabricated composites increased with increasing the content of TiC. X-ray diffraction analysis and scanning electron scope were used to characterize the phase composition and microstructure of composites. The reinforcing mechanism of TiC was analyzed.

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[Jiang Jipeng, Li Shibo, Hu Shujun, Zhang Jing, Yao Boxiang, Lu Xiaogang, Yu Wenbo, Zhou Yang. Effects of added TiC on properties of high chromium white iron[J]. Rare Metal Materials and Engineering,2020,49(2):701~704.]
DOI:10.12442/j. issn.1002-185X. QH20190013

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History
  • Received:March 08,2019
  • Revised:March 08,2019
  • Adopted:April 19,2019
  • Online: March 12,2020
  • Published: