Increasing fatigue resistance of AISI 4340 steel by nitrogen plasma ion-implantation

Autor(es)

Voorwald, H. J. C. ^[1] ; Bonora, R. G. ^[2] ; Oliveira, V. M. C. A. ^[1] ; Cioffi, M. O. H. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, Fatigue & Aeronaut Mat Res Grp, UNESP, Av Ariberto Pereira da Cunha 333, BR-12516410 Guaratingueta, SP - Brazil

^[2] Metrolab Calibracoes Ltda, Rua Francisco Goncalves Fonseca 120, BR-12238575 Sao Jose Dos Campos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ENGINEERING FAILURE ANALYSIS; v. 104, p. 490-499, 2019.
• Citações Web of Science: 0

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. (AU)

• Processo FAPESP: 11/00508-9 - Fadiga dos aços ABNT 4340 e Custom 465 tratados pela implantação iônica por imersão em plasma (3IP)
• Beneficiário: Rafael Gustavo Bonora
• Modalidade de apoio: Bolsas no Brasil - Doutorado