Tribological behaviour of high alloy corrosionresistant steels and hard alloys undergoing oscillating sliding friction in water at 20 and 300°C |
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Authors: | P.J. Hofmann N. Wieling |
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Affiliation: | Kraftwerk Union AG, D-8520 ErlangenF.R.G. |
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Abstract: | The coefficients of friction, the friction surface roughening and the mechanisms of wear for 11 metallic materials (high alloy steels and commercially available wear-resistant iron-, nickel- and cobalt-base alloys) were determined by friction tests performed in water at 20 and 300°C. The material combination 1.4550/1.4550 showed adhesive wear and coefficients of friction f of up to 1.6 at low surface pressures. Pure abrasive wear was found with seven hard alloy combinations. Typical curves of the coefficient of friction as a function of the number of friction cycles were obtained with both adhesive and abrasive wear. Short-term tests allowed the tendency of a material combination to adhesive wear to be determined. It was also found that the form of the curve of the coefficient of friction as a function of the number of friction cycles indicated which wear mechanism was operating. |
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