Microstructure, mechanical and corrosion performance of TiC steel-bonded carbides with different heat treatments

IF 4.2 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

International Journal of Refractory Metals & Hard Materials Pub Date : 2025-01-20 DOI:10.1016/j.ijrmhm.2025.107061

Yiqi Zhou , Yanhong Li , Jiaxin Zhao , Shuoyang Wang , Zhiyuan Huang , Wentao Qin , Lili Li , Yu Yan , Chaofang Dong

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Abstract

The alterations in microstructure, corrosion behaviour, wear resistance, and tensile characteristics of TiC steel-bonded carbide subjected to annealing (960 °C) and tempering (200 °C) processes are analysed. The transformation of the ferritic to a martensitic occurs during the annealing process, while the tempering process facilitates the formation of austenite. Results from the potentio-dynamic polarisation, potentio-static polarisation, and EIS test indicates that the martensitic phase exhibits increased passivation and enhanced corrosion resistance compared to the ferritic phase, with further improvements in corrosion resistance correlated to increased austenitic content. The SKPFM and SVET are employed to assess the change of galvanic effects between the reinforced particle and steel matrix under various post treatment conditions. The hardness of TiC steel-bonded carbide is a determinant of wear performance, while the interfacial bonding strength between TiC and the matrix significantly affects the tensile properties.

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来源期刊

$International Journal of Refractory Metals & Hard Materials$

International Journal of Refractory Metals & Hard Materials 工程技术-材料科学：综合

CiteScore

7.00

自引率

13.90%

发文量

236

审稿时长

35 days

期刊介绍： The International Journal of Refractory Metals and Hard Materials (IJRMHM) publishes original research articles concerned with all aspects of refractory metals and hard materials. Refractory metals are defined as metals with melting points higher than 1800 °C. These are tungsten, molybdenum, chromium, tantalum, niobium, hafnium, and rhenium, as well as many compounds and alloys based thereupon. Hard materials that are included in the scope of this journal are defined as materials with hardness values higher than 1000 kg/mm2, primarily intended for applications as manufacturing tools or wear resistant components in mechanical systems. Thus they encompass carbides, nitrides and borides of metals, and related compounds. A special focus of this journal is put on the family of hardmetals, which is also known as cemented tungsten carbide, and cermets which are based on titanium carbide and carbonitrides with or without a metal binder. Ceramics and superhard materials including diamond and cubic boron nitride may also be accepted provided the subject material is presented as hard materials as defined above.