| Autors: Kaleicheva, J. A., Mishev, V. P. Title: Wear Resistance of Austempered Ductile Iron with Nanosized Additives Keywords: nanoadditives, austempered ductile iron, hardness, wear resistance, microstructure. Abstract: The wear resistance, microstructure and mechanical properties of austempered ductile iron (ADI) with nanosized additives of cubic boron nitride cBN are investigated. Samples of ductile iron are put under austhempering at the following conditions: heating at 900°С, 1 h and isothermal retention at 280оС, 2 h and 380°С, 2 h with the aim to achieve a lower bainitic structure and an upper bainitic structure. The experimental wear testing of austempered ductile irons is performed in friction conditions of a fixed abrasive by a cinematic scheme "pin - disc" using an accelerated testing method and device. The microstructure of the ADI is investigated by metallographic and X-Ray analyses. The Vickers hardness testing and impact strength examination are carried out. The influence of the nanosized additives of cBN on the wear resistance, microstructure, impact strength and hardness of the ADI is investigated. References Issue
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Цитирания (Citation/s):
1. Li, Q., Guo, J. & Zhao, A. Effect of Upper Bainite on Wear Behaviour of High-Speed Wheel Steel. Tribol Lett 67, 121 . https://doi.org/10.1007/s11249-019-1239-7 - 2019 - в издания, индексирани в Scopus или Web of Science
2. Bingxu Wang, Gary C. Barber, Feng Qiu, Qian Zou, Hongyu Yang, A review: phase transformation and wear mechanisms of single-step and dual-step austempered ductile irons, Journal of Materials Research and Technology, Volume 9, Issue 1, Pages 1054-1069, ISSN 2238-7854, https://doi.org/10.1016/j.jmrt.2019.10.074. - 2020 - в издания, индексирани в Scopus или Web of Science
Вид: публикация в международен форум, публикация в издание с импакт фактор, публикация в реферирано издание, индексирана в Scopus и Web of Science
