Mabeba, A.D.Siyasiya, Charles Witness2020-04-202020-04-202019-11-09Mabeba, A.D. & Siyasiya, C.W. 2019, 'The effect of soaking and tempering temperatures on high vanadium alloys for grinding media', IOP Conference Series: Materials Science and Engineering, vol. 655, art. 012005, pp. 1-7.1757-8981 (print)1757-899X (online)10.1088/1757-899X/655/1/012005http://hdl.handle.net/2263/74229Vanadium produces the hardest carbides and can influence wear properties positively. However, due to the minerals’ price fluctuations as a result of the current economic climate, vanadium is currently expensive and seldom used in wear resistant materials despite its valuable properties. Nevertheless, it is still important to study the effects of vanadium carbides on wear properties and later compare the cost/durability ratio to the other currently used industrial alloys. Vanadium has been used as a secondary alloying element in high chromium cast iron and has produced positive results through the influence of orientation and morphology of the eutectic carbide M7C3. Vanadium carbides are known to be discontinuous, which is helpful with regards to impact properties. Vanadium carbides alone cannot maintain high macro-hardness values and for improved results carbon is needed to increase the strength of the matrix. In this paper, the influence of the soaking and tempering temperatures on hardness and wear properties in a high vanadium alloy, 1.91C-0.82Mn-0.96Si-0.90Ni-1.35Cr- 0.25Mo-6.12V, were investigated. The soaking temperatures were 1150 and 1250°C while the tempering temperatures were varied at 100°C interval from 300 °C to 600 °C. It was found that soaking at 1250°C increased the amount of retained austenite, but at the same time also improved the wear resistance in as quenched condition as well as after tempering up to 500 °C.enPublished under licence by IOP Publishing Ltd. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence.AusteniteVanadiumWear resistantMinerals’ price fluctuationsEngineering, built environment and information technology articles SDG-04SDG-04: Quality educationEngineering, built environment and information technology articles SDG-08SDG-08: Decent work and economic growthEngineering, built environment and information technology articles SDG-09SDG-09: Industry, innovation and infrastructureEngineering, built environment and information technology articles SDG-12SDG-12: Responsible consumption and productionArticle