Forming process and three-body wear properties of in-situ synthesized (Ti,W)C reinforced high chromium cast iron composite

doi:10.13251/j.issn.0254-6051.2020.07.031

Abstract

Abstract: (Ti,W)C particle reinforced high chromium cast iron composite was prepared by in-situ synthesis and casting method. XRD, EDS, SEM and other detection methods were used to study the reaction process and three-body wear resistance of the composite. The results show that there is a reaction-melting-precipitation mechanism and a reaction-solid solution mechanism in the reaction process of the reinforcing phase (Ti,W)C particles. The interface between the (Ti,W)C particles and the matrix is metallurgical bonding. The wear resistance of the composite is 1.4 times that of the high chromium cast iron, and the wear mechanism is abrasive wear-adhesive wear.

Key words: (Ti, W)C reinforced high chromium cast iron composite, in situ synthesis, reaction-melting-precipitation mechanism, reaction-solid solution mechanism, three-body wear

CLC Number:

TB33

Wei Dan, Luo Tiegang, Zheng Zhibin, Zheng Kaihong, Wang Juan, Long Jun. Forming process and three-body wear properties of in-situ synthesized (Ti,W)C reinforced high chromium cast iron composite[J]. Heat Treatment of Metals, 2020, 45(7): 153-158.

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