Accepted abstracts by author > Silva Maria Margareth

Tuesday 2
Posters session A

› 17:00 - 19:00 (2h)
› IFMI - Rooms A & B
Corrosion behavior of inconel 718 superalloy treated by plasma based ion implantation
Ana Claudia Hirschmann  1@  , Maria Margareth Silva  1@  , Carlos Neto  2@  , Mario Ueda  3@  , H Reuther  4@  
1 : Instituto tecnologico da aeronatica  (ITA)  -  Website
Endereço: Praça Marechal Eduardo Gomes, 50 - Vila das Acácias CEP 12.228-900 – São José dos Campos – SP – Brasil -  Brazil
2 : Instituto Tecnologico da Aeronautica  (ITA)  -  Website
Endereço: Praça Marechal Eduardo Gomes, 50 - Vila das Acácias CEP 12.228-900 – São José dos Campos – SP – Brasil -  Brazil
3 : Intituto Nacional de Pesquisa Espaciais  (INPE)  -  Website
av. dos astronautas, 1758 -  Brazil
4 : eResearch Center Dresden-Rossendorf, Institute of Íon Beam Physics and Materials Research, Dreseden, Germany

A superalloy is an alloy developed for elevated temperature service, where relatively severe mechanical stressing is encountered, and where high surface stability is frequently required. High temperature deformation of Ni-base superalloys is very important since the blades and discs of aeroengine turbine, because need to work at elevated temperature for an expected long period. The objective of this work is to investigate the improvement of a superalloy Inconel 718 double aging treatment and surface properties through treatments by Plasma Based Ion Implantation (PBII) for 3 hours. The experiment was carried out at INPE plasma immersion ion implantation reactor. Corrosion properties were determined with polarization technique in 3.5% NaCl solution at room temperature. The results from AES showed that a maximum implantation depth of ~370 nm with about 15% N content was achieved for the sample treated with N2 for 3 h. There was a small increase in corrosion resistance after implantation of nitrogen on the surface Inconel 718.


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