Cargando…
High-Temperature Oxidation Behavior of a Cu-Bearing 17Cr Ferritic Stainless Steel
The isothermal oxidation behavior of 17Cr-0.85Si-0.5Nb-1.2Cu ferritic stainless steel in air was studied from 850°C to 1050°C by analyzing its weight gain after oxidation. The kinetic curves were plotted using the oxidation weight-gain data, and the structure, surface morphology, and element distrib...
Autores principales: | , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Hindawi
2020
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7758150/ https://www.ncbi.nlm.nih.gov/pubmed/33381256 http://dx.doi.org/10.1155/2020/8847831 |
_version_ | 1783626877885218816 |
---|---|
author | Zhang, Mengqi Han, Ying Zu, Guoqing Sun, Jiapeng Zhu, Weiwei Chen, Hua Ran, Xu |
author_facet | Zhang, Mengqi Han, Ying Zu, Guoqing Sun, Jiapeng Zhu, Weiwei Chen, Hua Ran, Xu |
author_sort | Zhang, Mengqi |
collection | PubMed |
description | The isothermal oxidation behavior of 17Cr-0.85Si-0.5Nb-1.2Cu ferritic stainless steel in air was studied from 850°C to 1050°C by analyzing its weight gain after oxidation. The kinetic curves were plotted using the oxidation weight-gain data, and the structure, surface morphology, and element distribution of the oxide films were analyzed by XRD, SEM, and EDS. The results showed that the oxidation kinetics curves at 850°C and 950°C followed a parabolic law, and a continuous and dense oxide film composed of Cr(2)O(3) and MnCr(2)O(4), FeCr(2)O(4), and Cu-Cr rich spinel was formed, which reveals that the steel displayed good oxidation resistance. When the temperature was increased to 1050°C, the oxidation kinetics curves gradually changed from parabolic to linear after 40 h exposure, which indicated that the oxidation resistance significantly worsened. A lower oxidation resistance was observed at 1050°C due to the formation of a large amount of Fe(2)O(3) on the surface and the volatilization of the inner Cr(2)O(3) layer. |
format | Online Article Text |
id | pubmed-7758150 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Hindawi |
record_format | MEDLINE/PubMed |
spelling | pubmed-77581502020-12-29 High-Temperature Oxidation Behavior of a Cu-Bearing 17Cr Ferritic Stainless Steel Zhang, Mengqi Han, Ying Zu, Guoqing Sun, Jiapeng Zhu, Weiwei Chen, Hua Ran, Xu Scanning Research Article The isothermal oxidation behavior of 17Cr-0.85Si-0.5Nb-1.2Cu ferritic stainless steel in air was studied from 850°C to 1050°C by analyzing its weight gain after oxidation. The kinetic curves were plotted using the oxidation weight-gain data, and the structure, surface morphology, and element distribution of the oxide films were analyzed by XRD, SEM, and EDS. The results showed that the oxidation kinetics curves at 850°C and 950°C followed a parabolic law, and a continuous and dense oxide film composed of Cr(2)O(3) and MnCr(2)O(4), FeCr(2)O(4), and Cu-Cr rich spinel was formed, which reveals that the steel displayed good oxidation resistance. When the temperature was increased to 1050°C, the oxidation kinetics curves gradually changed from parabolic to linear after 40 h exposure, which indicated that the oxidation resistance significantly worsened. A lower oxidation resistance was observed at 1050°C due to the formation of a large amount of Fe(2)O(3) on the surface and the volatilization of the inner Cr(2)O(3) layer. Hindawi 2020-12-16 /pmc/articles/PMC7758150/ /pubmed/33381256 http://dx.doi.org/10.1155/2020/8847831 Text en Copyright © 2020 Mengqi Zhang et al. https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Zhang, Mengqi Han, Ying Zu, Guoqing Sun, Jiapeng Zhu, Weiwei Chen, Hua Ran, Xu High-Temperature Oxidation Behavior of a Cu-Bearing 17Cr Ferritic Stainless Steel |
title | High-Temperature Oxidation Behavior of a Cu-Bearing 17Cr Ferritic Stainless Steel |
title_full | High-Temperature Oxidation Behavior of a Cu-Bearing 17Cr Ferritic Stainless Steel |
title_fullStr | High-Temperature Oxidation Behavior of a Cu-Bearing 17Cr Ferritic Stainless Steel |
title_full_unstemmed | High-Temperature Oxidation Behavior of a Cu-Bearing 17Cr Ferritic Stainless Steel |
title_short | High-Temperature Oxidation Behavior of a Cu-Bearing 17Cr Ferritic Stainless Steel |
title_sort | high-temperature oxidation behavior of a cu-bearing 17cr ferritic stainless steel |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7758150/ https://www.ncbi.nlm.nih.gov/pubmed/33381256 http://dx.doi.org/10.1155/2020/8847831 |
work_keys_str_mv | AT zhangmengqi hightemperatureoxidationbehaviorofacubearing17crferriticstainlesssteel AT hanying hightemperatureoxidationbehaviorofacubearing17crferriticstainlesssteel AT zuguoqing hightemperatureoxidationbehaviorofacubearing17crferriticstainlesssteel AT sunjiapeng hightemperatureoxidationbehaviorofacubearing17crferriticstainlesssteel AT zhuweiwei hightemperatureoxidationbehaviorofacubearing17crferriticstainlesssteel AT chenhua hightemperatureoxidationbehaviorofacubearing17crferriticstainlesssteel AT ranxu hightemperatureoxidationbehaviorofacubearing17crferriticstainlesssteel |