Experimental investigation and thermodynamic analysis of TiC–Fe cermets with Mo additions-Reference-Cited by-同舟云学术

Experimental investigation and thermodynamic analysis of TiC–Fe cermets with Mo additions

Published:2024-05-22 Issue:6 Volume:115 Page:383-390
ISSN:1862-5282
Container-title:International Journal of Materials Research
language:en
Short-container-title:

Author:

Pan Yafei¹²,Huang Lei³,Du Yong⁴

Affiliation:

1. School of Materials Science and Engineering , 558979 Hefei University of Technology , Hefei , Anhui , P.R. China

2. Engineering Research Center of High-Performance Copper Alloy Materials and Processing, Ministry of Education , 558979 Hefei University of Technology , Hefei , Anhui , 230009 , P.R. China

3. School of Mechanical Engineering , 558979 Hefei University of Technology , Hefei , Anhui 230009 , P.R. China

4. State Key Laboratory of Powder Metallurgy , Central South University , Changsha , Hunan , P.R. China

Abstract

Abstract In this study, the effects of Mo additions on the microstructure, hardness and bending strength of TiC–Fe cermets manufactured by spark plasma sintering were investigated by scanning electron microscopy, X-ray diffraction and mechanical properties tests. Thermodynamic calculations were utilized to analyze the evolution of the microstructure. The results show that the conventional core/rim structure was not formed during the solid-phase sintering of TiC–Fe cermets. The heat-treatment process and reasonable Mo addition can effectively enhance the overall performance of the alloys. With the addition of minor Mo, the hardness of the sintered cermets improved significantly, which was attributed to the solid solution strengthening mechanism of Mo in Fe binder. However, excessive Mo exceeded the solubility range of Fe binder and precipitated in the form of M 6C and Mo2C phases, which damaged the bending strength of the heat-treated cermets.

Publisher

Walter de Gruyter GmbH

Link

https://www.degruyter.com/document/doi/10.1515/ijmr-2023-0199/pdf

Reference21 articles.

1. Degnah, A.; Du, J.; Chandran, K. S. CALPHAD Approach and Processing of a Multicomponent Titanium Matrix Composite for High Strength and Fracture Toughness. Mater. Sci. Eng. A 2020, 781, 139210. https://doi.org/10.1016/j.msea.2020.139210.

2. Liu, Z.; Zhang, H.; Liu, X.; Zheng, Y.; Huang, X.; Zou, D. Effects of Diffusion Alloying on the Microstructure and Properties of TiC-Reinforced Fe-Based PM Materials. Int. J. Mater. Res. 2016, 107 (12), 1082–1090. https://doi.org/10.3139/146.111444.

3. Pachaury, Y.; Shin, Y. C. Assessment of Sub-surface Damage during Machining of Additively Manufactured Fe–TiC Metal Matrix Composites. J. Mater. Process. Technol. 2019, 266, 173–183. https://doi.org/10.1016/j.jmatprotec.2018.11.001.

4. Lin, F.; Du, Y.; Lv, J.; Zhang, C.; Liu, X.; Tan, Z. Effect of NbC on the Microstructure, Mechanical Properties, and Oxidation Resistance of Ti(C,N)-based Cermets. Int. J. Mater. Res. 2020, 111 (6), 479–490. https://doi.org/10.3139/146.111907.

5. Pan, Y. F.; Liu, A. J.; Huang, L.; Du, Y.; Jin, Y. Q.; Yang, X. Y.; Zhang, J. X. Effects of Metal Binder Content and Carbide Grain Size on the Microstructure and Properties of SPS Manufactured WC–Fe Composites. J. Alloys Compd. 2019, 784, 519–526. https://doi.org/10.1016/j.jallcom.2019.01.057.