[RETRACTED ARTICLE]: Load Dependent Wear Analysis of Manganese Steels - Influence of Al Content

Sinha, Rahul; Mukhopadhyay, Alok

doi:10.1590/1980-5373-mr-2017-0169

Cited by 2 publications

(1 citation statement)

References 19 publications

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“…The austenitic structure imparts a wear sensibility to the Hadfield steel, which limits its life. Nowadays, the addition of alloying elements, such as chromium, vanadium, nickel, molybdenum, aluminium, nitrogen is used to improve its mechanical properties [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Effect of Heat Treatments on the Microstructure and Wear Resistance of a Modified Hadfield Steel

Ayadi¹,

Hadji²

2019

Metallofiz. Noveishie Tekhnol.

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In this study, the effect of heat treatments on the microstructure and wear resistance of Hadfield steel with different Cr + Ni contents is investigated. Hadfield steel with 1.2% wt. C and 12% wt. Mn is melted in an electric arc furnace. Added elements (Cr and Ni) are crushed and added as ultra-fine powders of ferro-alloyed composition in a well heated ladle. Two series of heat treatments are applied: one at 1100°C and the other at 1050°C. The microstructure of these steels is analysed using optical microscopy, scanning electron microscopy and X-ray diffraction. The Rockwell C hardness and the Vickers microhardness are measured at ambient temperature. The wear behaviour of all samples in as-cast and heat treated states is studied using pinon-disk wear tests. The obtained results show that the microstructure of the as-cast Hadfield steel samples consists of an austenitic matrix and complex carbides precipitated at the grain boundaries. Increase in the Cr + Ni content refines the structure that improves the hardness and the wear resistance. In the heat-treated state, the microstructure reveals two distinct phases: martensite and retained austenite. The increase of heat treatment temperature favours the martensitic transformation, which positively affects the hardness and wear behaviour of studied steels.

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Section: Introductionmentioning

confidence: 99%