Sliding and abrasive wear behaviour of boride coatings

By Carla Martini, G. Palombarini, G. Poli, D. Prandstraller. 2004

218 citations recorded by the source corpus.

Abstract Polyphase boride coatings constituted by an inner layer of Fe 2 B and an outer layer of FeB were thermochemically grown on iron and medium carbon steel by a pack cementation process. The tribological behaviour of borided samples was investigated under both sliding and abrasion testing conditions. Considerably different values of wear rate were found in different regions of the coatings. The differences were explained on the basis of the crystallographic order of iron borides. The resistance to both types of wear was initially poor due to the presence on the coatings of a thin, friable layer constituted by disordered crystals. Then the resistance increased to a maximum value in regions constituted by compact, highly ordered crystals of Fe 2 B. The resistance to dry sliding of borided samples was better than that displayed by samples submitted to alternative surface treatments (e.g. gas nitriding) and lower that that measured for a WC–Co hard metal coating.

Subfields: Materials Chemistry, Mechanical Engineering, Mechanics of Materials

View Paper: https://www.semanticscholar.org/paper/d6d4930cd99e622bd19bdb9f247e866ce2e3b1d4

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In Materials Chemistry

In Mechanical Engineering

In Mechanics of Materials

Citations in the corpus

A progress report on the MAB phases: atomically laminated, ternary transition metal borides (2019, background): “For these reasons and others, TMBs have been considered for applications such as wear-resistant coatings, [2,3] cutting tools, [4] thermal diffusion barriers, [5,6]”