Increasing fatigue resistance of AISI 4340 steel by nitrogen plasma ion-implantation
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Data
2019-01-01
Autores
Voorwald, H. J. C. [UNESP]
Bonora, R. G.
Oliveira, V. M. C. A. [UNESP]
Cioffi, M. O. H. [UNESP]
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Editor
Elsevier B.V.
Resumo
Failures in structural components due to cyclic loading are associated with materials surface damage. Coatings deposited by different surface processes are more or less effective to improve the degradation resistance of diverse elements. The present study aim is to analyze plasma immersion ion implantation (PHI) effect on axial fatigue strength, corrosion and wear resistance of AISI 4340 steel. Experimental results indicate an axial fatigue strength increase for 1, 2 and 3 h of treatment. PIII treatment was not effective to protect AISI 4340 steel against environmental aggressive action. In abrasive wear tests, lower pin mass reduction was observed due to superficial treatment.
Descrição
Palavras-chave
Plasma immersion ion implantation, Axial fatigue, Residual stress, Corrosion, Wear
Como citar
Engineering Failure Analysis. Oxford: Pergamon-elsevier Science Ltd, v. 104, p. 490-499, 2019.