Effect of heat treatment on the corrosion behaviour of LM6 in sulphuric acid and sodium hydroxide
Sulphuric acid (H2SO4) and sodium hydroxide (NaOH) are the main solutions used in water treatment stations to adjust the potential of hydrogen (PH). Pumps used in such stations must bear acidic and alkaline mediums. Pump parts such as impellers and casings could be made by aluminium silicon alloy (L...
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| Language: | English |
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Fast Track Publications
2021
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| Online Access: | http://psasir.upm.edu.my/id/eprint/96905/ http://psasir.upm.edu.my/id/eprint/96905/1/ABSTRACT.pdf |
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| author | Aljermi, Almukhtar IB. A. Sulaiman, S. Mohamed Ariff, Azmah Hanim Ismail, Mohd Idris Shah |
| author_facet | Aljermi, Almukhtar IB. A. Sulaiman, S. Mohamed Ariff, Azmah Hanim Ismail, Mohd Idris Shah |
| author_sort | Aljermi, Almukhtar IB. A. |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Sulphuric acid (H2SO4) and sodium hydroxide (NaOH) are the main solutions used in water treatment stations to adjust the potential of hydrogen (PH). Pumps used in such stations must bear acidic and alkaline mediums. Pump parts such as impellers and casings could be made by aluminium silicon alloy (LM6) due to their cast-ability and corrosion resistance. In this paper, the corrosion behaviour of LM6 in acidic and alkaline solutions was investigated. The corrosion test samples of LM6 were prepared using a carbon dioxide sand casting mould. Test samples subjected to solution heat treatment. A corrosion test was conducted using the weight-loss method by immersing the samples in H2SO4 and NaOH. Resulted showed that the LM6 was more corroded in the alkali than in acid. Cumulative weight loss of non-heat-treated LM6 in H2SO4 was 11.23 mg/cm2 while in NaOH was 177 mg/cm2. Cumulative weight loss of heat-treated LM6 in H2SO4 was 8.44 mg/cm2 while in NaOH was 192 mg/cm2. The corrosion rate of non-heat-treated LM6 in H2SO4 was 78 MPY while heat-treated LM6 was 56 MPY. Concluded that LM6 is more corroded in NaOHthan in H2SO4 and the heat-treated LM6 was more corrosion resistance than the non-heat-treated one. |
| first_indexed | 2025-11-15T13:17:34Z |
| format | Article |
| id | upm-96905 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T13:17:34Z |
| publishDate | 2021 |
| publisher | Fast Track Publications |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-969052022-11-29T08:58:14Z http://psasir.upm.edu.my/id/eprint/96905/ Effect of heat treatment on the corrosion behaviour of LM6 in sulphuric acid and sodium hydroxide Aljermi, Almukhtar IB. A. Sulaiman, S. Mohamed Ariff, Azmah Hanim Ismail, Mohd Idris Shah Sulphuric acid (H2SO4) and sodium hydroxide (NaOH) are the main solutions used in water treatment stations to adjust the potential of hydrogen (PH). Pumps used in such stations must bear acidic and alkaline mediums. Pump parts such as impellers and casings could be made by aluminium silicon alloy (LM6) due to their cast-ability and corrosion resistance. In this paper, the corrosion behaviour of LM6 in acidic and alkaline solutions was investigated. The corrosion test samples of LM6 were prepared using a carbon dioxide sand casting mould. Test samples subjected to solution heat treatment. A corrosion test was conducted using the weight-loss method by immersing the samples in H2SO4 and NaOH. Resulted showed that the LM6 was more corroded in the alkali than in acid. Cumulative weight loss of non-heat-treated LM6 in H2SO4 was 11.23 mg/cm2 while in NaOH was 177 mg/cm2. Cumulative weight loss of heat-treated LM6 in H2SO4 was 8.44 mg/cm2 while in NaOH was 192 mg/cm2. The corrosion rate of non-heat-treated LM6 in H2SO4 was 78 MPY while heat-treated LM6 was 56 MPY. Concluded that LM6 is more corroded in NaOHthan in H2SO4 and the heat-treated LM6 was more corrosion resistance than the non-heat-treated one. Fast Track Publications 2021 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/96905/1/ABSTRACT.pdf Aljermi, Almukhtar IB. A. and Sulaiman, S. and Mohamed Ariff, Azmah Hanim and Ismail, Mohd Idris Shah (2021) Effect of heat treatment on the corrosion behaviour of LM6 in sulphuric acid and sodium hydroxide. International Research Journal of Engineering and Technology, 8 (8). 982 - 989. ISSN 2395-0072; ESSN: 2395-0056 https://www.irjet.net/volume8-issue08 |
| spellingShingle | Aljermi, Almukhtar IB. A. Sulaiman, S. Mohamed Ariff, Azmah Hanim Ismail, Mohd Idris Shah Effect of heat treatment on the corrosion behaviour of LM6 in sulphuric acid and sodium hydroxide |
| title | Effect of heat treatment on the corrosion behaviour of LM6 in sulphuric acid and sodium hydroxide |
| title_full | Effect of heat treatment on the corrosion behaviour of LM6 in sulphuric acid and sodium hydroxide |
| title_fullStr | Effect of heat treatment on the corrosion behaviour of LM6 in sulphuric acid and sodium hydroxide |
| title_full_unstemmed | Effect of heat treatment on the corrosion behaviour of LM6 in sulphuric acid and sodium hydroxide |
| title_short | Effect of heat treatment on the corrosion behaviour of LM6 in sulphuric acid and sodium hydroxide |
| title_sort | effect of heat treatment on the corrosion behaviour of lm6 in sulphuric acid and sodium hydroxide |
| url | http://psasir.upm.edu.my/id/eprint/96905/ http://psasir.upm.edu.my/id/eprint/96905/ http://psasir.upm.edu.my/id/eprint/96905/1/ABSTRACT.pdf |