Influence of substrate pre-treatments by Xe+ ion bombardment and plasma nitriding on the behavior of TiN coatings deposited by plasma reactive sputtering on 100Cr6 steel

Autor(es)

Vales, S. ^[1] ; Brito, P. ^[2] ; Pineda, F. A. G. ^[1] ; Ochoa, E. A. ^[3] ; Droppa, Jr., R. ^[4] ; Garcia, J. ^[5] ; Morales, M. ^[3] ; Alvarez, F. ^[3] ; Pinto, H. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Escola Engn Sao Carlos, Av Trabalhador Sao Carlense 400, BR-13566590 Sao Carlos, SP - Brazil

^[2] Pontificia Univ Catolica Minas Gerais, Av Dom Jose Gaspar 500, BR-30535901 Belo Horizonte, MG - Brazil

^[3] Univ Estadual Campinas, UNICAMP, Campus Univ Zeferino Vaz, BR-13083970 Campinas, SP - Brazil

^[4] Univ Fed ABC, Av Estados 5001, BR-09210580 Santo Andre, SP - Brazil

^[5] Sandvik Coromant R&D, Lerkrogsvagen 19, SE-12680 Stockholm - Sweden

• Tipo de documento: Artigo Científico
• Fonte: Materials Chemistry and Physics; v. 177, p. 156-163, JUL 1 2016.
• Citações Web of Science: 1

Resumo

In this paper the influence of pre-treating a 100Cr6 steel surface by Xe+ ion bombardment and plasma nitriding at low temperature (380 degrees C) on the roughness, wear resistance and residual stresses of thin TiN coatings deposited by reactive IBAD was investigated. The Xe+ ion bombardment was carried out using a 1.0 keV kinetic energy by a broad ion beam assistance deposition (IBAD, Kaufman cell). The results showed that in the studied experimental conditions the ion bombardment intensifies nitrogen diffusion by creating lattice imperfections, stress, and increasing roughness. In case of the combined pre-treatment with Xe+ ion bombardment and subsequent plasma nitriding, the samples evolved relatively high average roughness and the wear volume increased in comparison to the substrates exposed to only nitriding or ion bombardment. (C) 2016 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 12/10127-5 - Pesquisa e desenvolvimento de materiais nanoestruturados para aplicações eletrônicas e de física de superfícies
• Beneficiário: Fernando Alvarez
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 10/11391-2 - Junção por fricção e mistura mecânica em ligas tixofundidas de magnésio de alto desempenho
• Beneficiário: Haroldo Cavalcanti Pinto
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores