High-temperature oxidation and aqueous corrosion performance of ferritic, vacuum-sintered stainless steels prealloyed with Si |
| |
Authors: | F Velasco A González-Centeno |
| |
Affiliation: | Materials Science and Engineering Department, Universidad Carlos III de Madrid, Avda. Universidad No. 30, 28911 Leganés, Madrid, Spain |
| |
Abstract: | The corrosion behavior at high-temperature and the aqueous corrosion behavior of sintered stainless steels manufactured from non-commercial prealloyed powder (434L with 2% Si) are studied and their results are compared with those of sintered stainless steels manufactured from commercial 434L powder, that has lower Si content. Both types of powders have been sintered in vacuum at three different temperatures, so materials with different porosity levels have been obtained. Several oxidation tests have been carried out from 700 to 1000 °C. Long-term experiments have proven the better oxidation resistance of 434L + 2% Si steels. Electrochemical measurements of the corrosion rate show a decrease on this parameter caused by the increase of Si-content on powders. |
| |
Keywords: | A Stainless steel B Polarization C High-temperature corrosion C Internal oxidation C Kinetic parameters |
本文献已被 ScienceDirect 等数据库收录! |