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http://repositorio.ufc.br/handle/riufc/66925| Type: | Artigo de Periódico |
| Title: | Ageing effects on α′ precipitation and resistance to corrosion of a novel Cr-Mo stainless steel with high Mo content |
| Authors: | Vasconcelos, Igor Frota de Tavares, Sérgio Souto Maior Reis, Francisco Evaristo Uchôa Abreu, Hamilton Ferreira Gomes de |
| Keywords: | Stress Corrosion Crack;Duplex stainless steel;Distillation Tower;Ferritic stainless steel;Paramagnetic Phase |
| Issue Date: | 2009 |
| Publisher: | Journal of Materials Science |
| Citation: | VASCONCELOS, Igor F. et al. Ageing effects on α′ precipitation and resistance to corrosion of a novel Cr-Mo stainless steel with high Mo content. Journal of Materials Science, [s.l.], v. 44, p. 293-299, 2009. |
| Abstract: | The consequences of ageing at 400 and 475 C on a0 precipitation and corrosion resistance of a novel Cr–Mo ferritic SS with high Mo content were investigated. Combination of X-ray diffraction and Mo¨ssbauer spectroscopy results indicates the appearance of a small amount of a paramagnetic phase as a result of the ageing. This phase is iso-structural with the a phase and is thus associated with a Cr-rich a0 phase. The appearance of this phase is related to a decrease of the resistance to corrosion as studied by DL-EPR because the presence of this paramagnetic phase leads to discontinuities in the oxide layer thus reducing corrosion protection and exposing the steel to the action of the corrosive solution. |
| URI: | http://www.repositorio.ufc.br/handle/riufc/66925 |
| ISSN: | 1573-4803 |
| Appears in Collections: | DEMM - Artigos publicados em revista científica |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2009_art_ifvasconcelos.pdf | 979,62 kB | Adobe PDF | View/Open |
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