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https://open.uns.ac.rs/handle/123456789/1297
Nаziv: | Microstructure and cavitation behaviour of alloyed austempered ductile irons | Аutоri: | Eric Cekic O. Dojcinovic M. Rajnović, Dragan Sidjanin L. Baloš, Sebastian |
Dаtum izdаvаnjа: | 3-сеп-2018 | Čаsоpis: | International Journal of Cast Metals Research | Sažetak: | © 2018, © 2018 Informa UK Limited, trading as Taylor & Francis Group. In this paper, the study of cavitation behaviour of austempered ductile iron (ADI) alloyed with copper, as well as copper and nickel with a fully ausferritic microstructure, is presented. The ADI materials used were austenitized at 900 °C and austempered at 350 °C having an ausferrite microstructure with 16 and 19% of austenite, respectively. The experimental investigations were conducted using the ultrasonically induced cavitation test method. The results show that the cavitation damage was initiated at graphite nodules, as well as in the interface between a graphite nodule and an ausferrite matrix. The cavitation rate revealed that the ADI material alloyed with Cu + Ni austempered at 350 °C/3 h has a higher cavitation resistance in water than ADI alloyed with Cu. An increased cavitation resistance of the ADI material alloyed with Cu and Ni is due to the matrix hardening by stress assisted phase transformation of austenite into the martensite (SATRAM) phenomenon. | URI: | https://open.uns.ac.rs/handle/123456789/1297 | ISSN: | 13640461 | DOI: | 10.1080/13640461.2018.1446385 |
Nаlаzi sе u kоlеkciјаmа: | FTN Publikacije/Publications |
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