Title

TRIBO-CORROSION BEHAVIOUR OF S-PHASE AGAINST S-PHASE TRIBOPAIRS

TRIBO-CORROSION BEHAVIOUR OF S-PHASE AGAINST S-PHASE TRIBOPAIRS

Authorship

Buhagiar, Joseph; Jung, Anne; Dong, Hanshan

Buhagiar, Joseph

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Jung, Anne

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Dong, Hanshan

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DOI

10.5151/2594-5327-17156

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Abstract

S-phase layers on austenitic stainless steels have demonstrated significantly enhanced wear and corrosion properties. Most of the tribocorrosion work on S-phase was conducted against an alumina or tungsten carbide counterpart. However, no work has been done on thecorrosion-wear behaviour of a tribopair both made from S- phase layers. However, S-phase against S-phase is both scientifically and technologically important since the S-phase can have commercial applications in the food and biomedical industries where there is a need of metal-on-metal sliding. In this work AISI 316 balls and discs were plasma surface alloyed with nitrogen and carbon to form S-phase layers and their corrosion-wear behaviour was tested in a 0.15M NaCl solution using a reciprocating wear tester. The results demonstrate that the S-phase tribopair can produce a markedly decrease in material lost when compared to an untreated tribopair.

S-phase layers on austenitic stainless steels have demonstrated significantly enhanced wear and corrosion properties. Most of the tribocorrosion work on S-phase was conducted against an alumina or tungsten carbide counterpart. However, no work has been done on thecorrosion-wear behaviour of a tribopair both made from S- phase layers. However, S-phase against S-phase is both scientifically and technologically important since the S-phase can have commercial applications in the food and biomedical industries where there is a need of metal-on-metal sliding. In this work AISI 316 balls and discs were plasma surface alloyed with nitrogen and carbon to form S-phase layers and their corrosion-wear behaviour was tested in a 0.15M NaCl solution using a reciprocating wear tester. The results demonstrate that the S-phase tribopair can produce a markedly decrease in material lost when compared to an untreated tribopair.

Keywords

S-phase; Expanded austenite; Plasma nitriding; Plasma carburising; Plasma nitrocarburising; Corrosion-wear.

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