Corrosion Resistance of Aluminum Alloy 7020-T6 in Sea Water
The present work is aimed to investigate the effect of heat treatment on corrosion resistance of Al-alloy 7020-T6 in sea water, the specimens which manufactured by (1.5*1.5*0.2) cm, according to ASTM (G31-72) [1] The heat treatment was carried out at 480°C and water quench after that artificial agin...
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| Format: | Article |
| Language: | English |
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Unviversity of Technology- Iraq
2011-06-01
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| Series: | Engineering and Technology Journal |
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| Online Access: | https://etj.uotechnology.edu.iq/article_31384_ce36101cbc21bf963161710b968a39e3.pdf |
| _version_ | 1797325438118264832 |
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| author | Mustafa Khaleel Ismael |
| author_facet | Mustafa Khaleel Ismael |
| author_sort | Mustafa Khaleel Ismael |
| collection | DOAJ |
| description | The present work is aimed to investigate the effect of heat treatment on corrosion resistance of Al-alloy 7020-T6 in sea water, the specimens which manufactured by (1.5*1.5*0.2) cm, according to ASTM (G31-72) [1] The heat treatment was carried out at 480°C and water quench after that artificial aging are implemented at temperature 150°C for (1, 4) hours. Microstructure and phase properties after heat treatment and corrosion test were investigated by optical microscope; X-ray diffraction and computer potentiodynamic polarization technique have been used to study corrosion behavior in 3.5% NaCl. The results of corrosion resistance 7020-T6 decrease by solution heat treatment and, increase the holding time from 1- 4 hour would increase the corrosion rate, Intermetallics compounds containing zinc represent as the sacrificial anode and control pitting corrosion in 7020-T6 alloy also, the artificial ageing time increase the precipitation of zinc and decrease pitting corrosion at 1 hour. |
| first_indexed | 2024-03-08T06:09:31Z |
| format | Article |
| id | doaj.art-6838eb52e59a4396bf353813a7e4f14b |
| institution | Directory Open Access Journal |
| issn | 1681-6900 2412-0758 |
| language | English |
| last_indexed | 2024-03-08T06:09:31Z |
| publishDate | 2011-06-01 |
| publisher | Unviversity of Technology- Iraq |
| record_format | Article |
| series | Engineering and Technology Journal |
| spelling | doaj.art-6838eb52e59a4396bf353813a7e4f14b2024-02-04T17:42:00ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582011-06-012981482149010.30684/ etj.29.8.431384Corrosion Resistance of Aluminum Alloy 7020-T6 in Sea WaterMustafa Khaleel IsmaelThe present work is aimed to investigate the effect of heat treatment on corrosion resistance of Al-alloy 7020-T6 in sea water, the specimens which manufactured by (1.5*1.5*0.2) cm, according to ASTM (G31-72) [1] The heat treatment was carried out at 480°C and water quench after that artificial aging are implemented at temperature 150°C for (1, 4) hours. Microstructure and phase properties after heat treatment and corrosion test were investigated by optical microscope; X-ray diffraction and computer potentiodynamic polarization technique have been used to study corrosion behavior in 3.5% NaCl. The results of corrosion resistance 7020-T6 decrease by solution heat treatment and, increase the holding time from 1- 4 hour would increase the corrosion rate, Intermetallics compounds containing zinc represent as the sacrificial anode and control pitting corrosion in 7020-T6 alloy also, the artificial ageing time increase the precipitation of zinc and decrease pitting corrosion at 1 hour.https://etj.uotechnology.edu.iq/article_31384_ce36101cbc21bf963161710b968a39e3.pdfalloycorrosion resistancepotentiodynamicmicrostructureartificial agingheat treatment |
| spellingShingle | Mustafa Khaleel Ismael Corrosion Resistance of Aluminum Alloy 7020-T6 in Sea Water Engineering and Technology Journal alloy corrosion resistance potentiodynamic microstructure artificial aging heat treatment |
| title | Corrosion Resistance of Aluminum Alloy 7020-T6 in Sea Water |
| title_full | Corrosion Resistance of Aluminum Alloy 7020-T6 in Sea Water |
| title_fullStr | Corrosion Resistance of Aluminum Alloy 7020-T6 in Sea Water |
| title_full_unstemmed | Corrosion Resistance of Aluminum Alloy 7020-T6 in Sea Water |
| title_short | Corrosion Resistance of Aluminum Alloy 7020-T6 in Sea Water |
| title_sort | corrosion resistance of aluminum alloy 7020 t6 in sea water |
| topic | alloy corrosion resistance potentiodynamic microstructure artificial aging heat treatment |
| url | https://etj.uotechnology.edu.iq/article_31384_ce36101cbc21bf963161710b968a39e3.pdf |
| work_keys_str_mv | AT mustafakhaleelismael corrosionresistanceofaluminumalloy7020t6inseawater |