High temperature cathodic protection of Fe-Cr alloy
Power plant industry extensively using ferritic Fe-Cr alloys as boiler materials due to its good resistant to creep, low in thermal shock and thermal expansion. However, the development of new generation of Ultra Supercritical (USC) power plant requires boiler materials to be operate at higher tempe...
| Main Authors: | , , , , |
|---|---|
| Format: | Proceeding Paper |
| Language: | English English |
| Published: |
IOP Publishing Ltd
2020
|
| Subjects: | |
| Online Access: | http://irep.iium.edu.my/81931/ http://irep.iium.edu.my/81931/1/81931-High%20Temperature%20Cathodic%20Protection%20of%20Fe-Cr%20Alloy.pdf http://irep.iium.edu.my/81931/7/81931%20High%20Temperature%20Cathodic%20Protection%20of%20Fe-Cr%20Alloy%20SCOPUS.pdf |
| _version_ | 1848789208547721216 |
|---|---|
| author | Ani, Mohd Hanafi Azman, M. A. F. Musa, Mukhtaruddin Anhar, Zaki Abdul Hamid, Abd. Malek |
| author_facet | Ani, Mohd Hanafi Azman, M. A. F. Musa, Mukhtaruddin Anhar, Zaki Abdul Hamid, Abd. Malek |
| author_sort | Ani, Mohd Hanafi |
| building | IIUM Repository |
| collection | Online Access |
| description | Power plant industry extensively using ferritic Fe-Cr alloys as boiler materials due to its good resistant to creep, low in thermal shock and thermal expansion. However, the development of new generation of Ultra Supercritical (USC) power plant requires boiler materials to be operate at higher temperature and pressure, thus make it susceptible to high temperature oxidation. The USC power plant successfully reaching the target of working temperature at temperature more than 873K (600°C). By increasing the operating temperature, the efficiency of power plant also increases at the expense of acceleration of high temperature oxidation. This project explored the application of impressed current cathidic protection (ICCP) at 1073 K. At high temperature, gas may dissociates into charged ions that make it possible to conduct electrons. Typical boiler material of T91 was used in high temperature oxidation at 1073K, under Ar-20%O2 mixed gas. The sample is connected to potentiostat with Pt wire to measure the value of corrosion potential (Ecorr), and Icorr. Blank experiment is conducted to determine the presence of reaction by the presence of current conductivity at high temperature in oxygen condition. The weight gain is following parabolic’s rate law, which shows that diffusion is the rate determing step. Blank test shows that as potential induced, current flows from one Pt terminal to another Pt terminal through intermediate mixed gas. Corrosion potential (Ecorr) of the sample show the value is greater than value at room temperature. It is concluded that ICCP is feasible to be conducted for controlling corrosion at high temperature. |
| first_indexed | 2025-11-14T17:53:04Z |
| format | Proceeding Paper |
| id | iium-81931 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-14T17:53:04Z |
| publishDate | 2020 |
| publisher | IOP Publishing Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-819312020-10-15T03:12:37Z http://irep.iium.edu.my/81931/ High temperature cathodic protection of Fe-Cr alloy Ani, Mohd Hanafi Azman, M. A. F. Musa, Mukhtaruddin Anhar, Zaki Abdul Hamid, Abd. Malek T Technology (General) TA Engineering (General). Civil engineering (General) TA401 Materials of engineering and construction Power plant industry extensively using ferritic Fe-Cr alloys as boiler materials due to its good resistant to creep, low in thermal shock and thermal expansion. However, the development of new generation of Ultra Supercritical (USC) power plant requires boiler materials to be operate at higher temperature and pressure, thus make it susceptible to high temperature oxidation. The USC power plant successfully reaching the target of working temperature at temperature more than 873K (600°C). By increasing the operating temperature, the efficiency of power plant also increases at the expense of acceleration of high temperature oxidation. This project explored the application of impressed current cathidic protection (ICCP) at 1073 K. At high temperature, gas may dissociates into charged ions that make it possible to conduct electrons. Typical boiler material of T91 was used in high temperature oxidation at 1073K, under Ar-20%O2 mixed gas. The sample is connected to potentiostat with Pt wire to measure the value of corrosion potential (Ecorr), and Icorr. Blank experiment is conducted to determine the presence of reaction by the presence of current conductivity at high temperature in oxygen condition. The weight gain is following parabolic’s rate law, which shows that diffusion is the rate determing step. Blank test shows that as potential induced, current flows from one Pt terminal to another Pt terminal through intermediate mixed gas. Corrosion potential (Ecorr) of the sample show the value is greater than value at room temperature. It is concluded that ICCP is feasible to be conducted for controlling corrosion at high temperature. IOP Publishing Ltd 2020 Proceeding Paper PeerReviewed application/pdf en http://irep.iium.edu.my/81931/1/81931-High%20Temperature%20Cathodic%20Protection%20of%20Fe-Cr%20Alloy.pdf application/pdf en http://irep.iium.edu.my/81931/7/81931%20High%20Temperature%20Cathodic%20Protection%20of%20Fe-Cr%20Alloy%20SCOPUS.pdf Ani, Mohd Hanafi and Azman, M. A. F. and Musa, Mukhtaruddin and Anhar, Zaki and Abdul Hamid, Abd. Malek (2020) High temperature cathodic protection of Fe-Cr alloy. In: 2nd Joint Conference on Green Engineering Technology & Applied Computing 2020, 4th - 5th Feb. 2020, Bangkok, Thailand.. https://iopscience.iop.org/article/10.1088/1757-899X/864/1/012031/pdf 10.1088/1757-899X/864/1/012031 |
| spellingShingle | T Technology (General) TA Engineering (General). Civil engineering (General) TA401 Materials of engineering and construction Ani, Mohd Hanafi Azman, M. A. F. Musa, Mukhtaruddin Anhar, Zaki Abdul Hamid, Abd. Malek High temperature cathodic protection of Fe-Cr alloy |
| title | High temperature cathodic protection of Fe-Cr alloy |
| title_full | High temperature cathodic protection of Fe-Cr alloy |
| title_fullStr | High temperature cathodic protection of Fe-Cr alloy |
| title_full_unstemmed | High temperature cathodic protection of Fe-Cr alloy |
| title_short | High temperature cathodic protection of Fe-Cr alloy |
| title_sort | high temperature cathodic protection of fe-cr alloy |
| topic | T Technology (General) TA Engineering (General). Civil engineering (General) TA401 Materials of engineering and construction |
| url | http://irep.iium.edu.my/81931/ http://irep.iium.edu.my/81931/ http://irep.iium.edu.my/81931/ http://irep.iium.edu.my/81931/1/81931-High%20Temperature%20Cathodic%20Protection%20of%20Fe-Cr%20Alloy.pdf http://irep.iium.edu.my/81931/7/81931%20High%20Temperature%20Cathodic%20Protection%20of%20Fe-Cr%20Alloy%20SCOPUS.pdf |