SURFACE MODIFICATION OF THE IN-657 SUPERALLOY AFTER EXPOSURE TO A MOLTEN MIXTURE - 82-PERCENT-K2S2O7-18-PERCENT-V2O5 AT HIGH-TEMPERATURE

Authors
OTERO E PARDO A PEREZ FJ ALVAREZ JF UTRILLA MV
Citation
E. Otero et al., SURFACE MODIFICATION OF THE IN-657 SUPERALLOY AFTER EXPOSURE TO A MOLTEN MIXTURE - 82-PERCENT-K2S2O7-18-PERCENT-V2O5 AT HIGH-TEMPERATURE, Surface & coatings technology, 68, 1994, pp. 58-63
Citations number
19
Categorie Soggetti
Materials Science, Coatings & Films
Journal title
Surface & coatings technology → ACNP
ISSN journal
02578972
Volume
68
Year of publication
1994
Pages
58 - 63
Database
ISI
SICI code
0257-8972(1994)68:<58:SMOTIS>2.0.ZU;2-E
Abstract
The effect of temperature and carbon content on the corrosion kinetics of IN-657 superalloy in the eutectic melt 82%K2S2O7-18%V2O5 has been studied by electrochemical methods and surface analytical techniques. The protective characteristics of the oxidized layers formed under the test conditions were studied before and after laser surface treatment . A mechanism of oxidation and reduction of protective layers on IN-65 7 superalloy is presented. The objective of this work was to determine the effect on the surface modification of temperature, carbon as a co mponent of the molten salt, and the laser surface modification applied to the studied material.