Microstructure and wear characteristics of ATZ ceramic particle reinforced gray iron matrix surface composites

Ma, Xue and Li, Liang-feng and Zhang, Fan and Zhang, Zu-hua and Wang, Hao and Wang, En-ze (2018) Microstructure and wear characteristics of ATZ ceramic particle reinforced gray iron matrix surface composites. China Foundry, 15 (3). pp. 167-172. ISSN 1672-6421


Abstract

The alumina toughened zirconia (ATZ) ceramic particle reinforced gray iron matrix surface composite was successfully manufactured by pressureless infiltration. The porous preform played a key role in the infiltrating progress. The microstructure was observed by scanning electron microscopy (SEM); the phase constitutions was analyzed by X-ray diffraction (XRD); and the hardness and wear resistance of selected specimens were tested by hardness testing machine and abrasion testing machine, respectively. The addition of high carbon ferrochromium powders leads to the formation of white iron during solidification. The wear volume loss rates of ATZ ceramic particle reinforced gray iron matrix surface composite decreases first, and then tends to be stable. The wear resistance of the composite is 2.7 times higher than that of gray iron matrix. The reason is a combination of the surface hardness increase of gray iron matrix and ATZ ceramic particles and alloy carbides protecting effect on gray iron matrix.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2019 Springer Nature Switzerland AG.
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Date Deposited: 31 Jan 2020 05:40
Last Modified: 11 Jun 2020 03:43
Uncontrolled Keywords: metal-matrix surface composites; pressureless infiltrating; particle-reinforcement; surface alloying; wear testing; TG143.2
Fields of Research : 09 Engineering > 0905 Civil Engineering > 090503 Construction Materials
Socio-Economic Objective: B Economic Development > 87 Construction > 8703 Construction Materials Performance and Processes > 870301 Cement and Concrete Materials
Identification Number or DOI: 10.1007/s41230-018-7211-6
URI: http://eprints.usq.edu.au/id/eprint/37702

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