Comparison of high Cr white iron composites reinforced with directly added TiC and in situ formed TiCx

Jipeng Jiang; Shibo Li; Shujun Hu; Jing Zhang; Wenbo Yu; Yang Zhou

Journal of Materials Research and Technology (May 2020)

Comparison of high Cr white iron composites reinforced with directly added TiC and in situ formed TiCx

Jipeng Jiang,
Shibo Li,
Shujun Hu,
Jing Zhang,
Wenbo Yu,
Yang Zhou

Affiliations

Jipeng Jiang: Center of Materials Science and Engineering, School of Mechanical and Electronic Control Engineering, Beijing Jiaotong University, Beijing 100044, China
Shibo Li: Corresponding author.; Center of Materials Science and Engineering, School of Mechanical and Electronic Control Engineering, Beijing Jiaotong University, Beijing 100044, China
Shujun Hu: Center of Materials Science and Engineering, School of Mechanical and Electronic Control Engineering, Beijing Jiaotong University, Beijing 100044, China
Jing Zhang: Center of Materials Science and Engineering, School of Mechanical and Electronic Control Engineering, Beijing Jiaotong University, Beijing 100044, China
Wenbo Yu: Center of Materials Science and Engineering, School of Mechanical and Electronic Control Engineering, Beijing Jiaotong University, Beijing 100044, China
Yang Zhou: Center of Materials Science and Engineering, School of Mechanical and Electronic Control Engineering, Beijing Jiaotong University, Beijing 100044, China

Journal volume & issue: Vol. 9, no. 3
pp. 3140 – 3148

Abstract

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Two kinds of high Cr white iron (HCWI) composites reinforced with directly added TiC (TiC/HCWI) and in situ formed TiCx (TiCx/HCWI) have been successfully synthesized by powder metallurgy method. The directly added TiC grains are irregular in shape with a mean size of about 2−4 μm, but the in situ formed TiCx grains from the decomposition of Ti3AlC2 are spherical and about 1–2 μm in size. The microstructure, mechanical properties and wear resistance of the two composites were compared. The in situ TiCx/HXCWI composite possesses finer microstructures and superior mechanical and wear resistant properties than TiC/HCWI composite. The phase composition and microstructure were characterized with X-ray diffraction analysis, scanning electron microscopy and transmission electron microscopy.

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

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