Ref.: MmeBi17-002
Apresentador: Gleisa Pitareli
Autores (Instituição): Macedo, M.d.(Universidade Federal do ABC); Pitareli, G.(Faculdade de Tecnologia de Mauá); Rios, M.D.(Faculdade de Tecnologia de São Paulo); Sahin, M.(Kirsehir Ahi Evran University); Monteiro Júnior, S.(Centro Universitário das Faculdades Metropolitanas Unidas); Verma, V.(Aqila Technologies and Integration Solutions Private Limited); Luna-Domínguez, C.R.(Universidad Autónoma de Tamaulipas); Luna-Domínguez, J.H.(Universidad Autónoma de Tamaulipas); Al-Anzi, B.S.(Kuwait University); Cozza, R.C.(Faculdade de Tecnologia de Mauá); Schon, C.G.(Escola Politécnica da Universdade de Sao Paulo);
Resumo:
The present work analyzed the influence of an optical fiber laser surface treatment process on the tribological behavior of the ISO 5832-1 austenitic stainless-steel, basing on the wear volume and friction coefficient. Specimen of this biomaterial were treated by alternating the laser frequency, in order to find out a condition that improves its tribological resistance. Ball-cratering micro-abrasive wear tests were carried out with a test ball of AISI 316L stainless-steel, used as counter-body, and an abrasive slurry prepared with abrasive particles of black silicon carbide (SiC) and distilled water. The micro-abrasive wear tests results indicated that: i) the hardness of the ISO 5832-1 austenitic stainless-steel increased as a function of the laser frequency, decreasing, consequently, the wear volume, as predicted by Archard’s Law, ii) the friction coefficient did not present a proportional behavior with the increase of the optical fiber laser frequency and iii) the best condition to improve the wear resistance of the ISO 5832-1 austenitic stainless-steel was obtained adopting an optical fiber laser frequency of 350 kHz, being reported the lower wear volume.