Autors: Kaleicheva, J. A., Mishev, V. P.
Title: Wear Resistance of Austempered Ductile Iron with Nanosized Additives
Keywords: nanoadditives, austempered ductile iron, hardness, wear resi

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

    IOP Conference Series: Materials Science and Engineering, 9th International Conference on Tribology (Balkantrib'17), vol. 295, pp. Article number 012034, 2018, Turkey, IOP Publishing Ltd., DOI 10.1088/1757-899X/295/1/012034

    Copyright IOP Publishing Ltd

    Цитирания (Citation/s):
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    Вид: публикация в международен форум, публикация в издание с импакт фактор, публикация в реферирано издание, индексирана в Scopus