Effects of Ni60WC25 powder content on the microstructure and wear properties of WCp reinforced surface metal matrix composites
| Autor: | Yudong Sui, Lina Han, Zulai Li, Yehua Jiang, Quan Shan |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Evaporative-pattern casting Composite number Alloy 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology Microstructure Gibbs free energy Metal Matrix (chemical analysis) symbols.namesake 020303 mechanical engineering & transports 0203 mechanical engineering visual_art symbols visual_art.visual_art_medium engineering Composite material 0210 nano-technology Dissolution |
| Zdroj: | Transactions of the Indian Institute of Metals. 71:2415-2422 |
| ISSN: | 0975-1645 0972-2815 |
| DOI: | 10.1007/s12666-018-1372-2 |
| Popis: | The vacuum evaporative pattern casting technique was used to fabricate WCp reinforced surface metal matrix composites in order to study the effects of Ni60WC25 powder content on the microstructure and wear properties of it. The results showed that the Ni60WC25 powders weakened the stability of WC particles and reacted with metal matrix at the interfacial regions in the composite. Diffusion kinetics and Gibbs free energy were calculated from the interactions between WC particles and matrix. It was found that adding 35 vol% Ni60WC25 alloy powder to composites led to the formation of Fe3W3C phases and complete dissolution of WC particles. The wear properties of composites with different Ni60WC25 alloy powder content were tested by the MLD-10 type tester. WC particles and Fe3W3C phases could protect the matrix and the matrix could support WC particles and Fe3W3C phases during wear processing. |
| Databáze: | OpenAIRE |
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