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姜吉鹏,李世波,胡树郡,张京,姚伯祥,陆晓刚,于文波,周洋.添加TiC对高铬铸铁性能的影响[J].稀有金属材料与工程(英文),2020,49(2):701~704.[Jiang Jipeng,Li Shibo,Hu Shujun,Zhang Jing,Yao Boxiang,Lu Xiaogang,Yu Wenbo and Zhou Yang.Effects of added TiC on properties of high chromium white iron[J].Rare Metal Materials and Engineering,2020,49(2):701~704.]
Effects of added TiC on properties of high chromium white iron
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Received:March 08, 2019  Revised:March 08, 2019
DOI:
Key words: TiC/HCWI composites  microstructure  mechanical properties  wear resistance
Foundation item:国家自然科学基金资助(项目号51772020)
Author NameAffiliation
Jiang Jipeng,Li Shibo,Hu Shujun,Zhang Jing,Yao Boxiang,Lu Xiaogang,Yu Wenbo and Zhou Yang  
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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.