Nitridation of AL-Mg-Si alloys through dynamic heating = Penitridaan aloi AL-Mg-Si secara pemanasan dinamik
Nitridation behaviour of Al-Mg-Si alloys was studied as a function of temperature by means of thermogravimetry method. A reactive gas, N2-4%H2 at a rate of 10 ml/min was purged into the thermogravimetry analyser chamber. The Al alloys were heated from 25oC to 625oC at the heating rate of 15oC/min...
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| Format: | Article |
| Language: | English |
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Universiti Kebangsaan Malaysia
2007
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| Online Access: | http://journalarticle.ukm.my/105/1/1.pdf |
| _version_ | 1796914140273442816 |
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| author | Roslinda Shamsudin, Saiful Rizam Shamsuddin, Abdul Razak Daud, Muhammad Azmi Abdul Hamid, |
| author_facet | Roslinda Shamsudin, Saiful Rizam Shamsuddin, Abdul Razak Daud, Muhammad Azmi Abdul Hamid, |
| author_sort | Roslinda Shamsudin, |
| collection | UKM |
| description | Nitridation behaviour of Al-Mg-Si alloys was studied as a function of temperature by means of thermogravimetry method.
A reactive gas, N2-4%H2 at a rate of 10 ml/min was purged into the thermogravimetry analyser chamber. The Al alloys
were heated from 25oC to 625oC at the heating rate of 15oC/min and then reduced to 3oC/min until it reached 1500oC. It was found that by varying the amount of Mg and Si in Al-Mg-Si alloys significantly influenced the growth of the composites. A differential thermogravimetric curve shows the Mg containing alloys experienced many steps of chemical reactions. This indicates that besides AlN presence as a major phase, other compounds also exist in the final product. The X-ray diffraction results confirmed the existence of oxide phases such as !-Al2O3, MgAl2O4 and MgO in addition to residual Si and Al metal. The presence of oxide compounds is believed to be due to the reaction between the alloying elements and residual oxygen gas left in the reaction atmosphere. It was also found that Si could play a role in promoting the weight gain of the composite produced. The heating rate has also a profound effect on the weight gain, whereby higher heating rate resulted in low yielded of AlN during the nitridation reaction of the Al-Mg-Si alloys. |
| first_indexed | 2024-03-06T03:38:10Z |
| format | Article |
| id | ukm.eprints-105 |
| institution | Universiti Kebangsaan Malaysia |
| language | English |
| last_indexed | 2024-03-06T03:38:10Z |
| publishDate | 2007 |
| publisher | Universiti Kebangsaan Malaysia |
| record_format | dspace |
| spelling | ukm.eprints-1052016-12-14T06:26:25Z http://journalarticle.ukm.my/105/ Nitridation of AL-Mg-Si alloys through dynamic heating = Penitridaan aloi AL-Mg-Si secara pemanasan dinamik Roslinda Shamsudin, Saiful Rizam Shamsuddin, Abdul Razak Daud, Muhammad Azmi Abdul Hamid, Nitridation behaviour of Al-Mg-Si alloys was studied as a function of temperature by means of thermogravimetry method. A reactive gas, N2-4%H2 at a rate of 10 ml/min was purged into the thermogravimetry analyser chamber. The Al alloys were heated from 25oC to 625oC at the heating rate of 15oC/min and then reduced to 3oC/min until it reached 1500oC. It was found that by varying the amount of Mg and Si in Al-Mg-Si alloys significantly influenced the growth of the composites. A differential thermogravimetric curve shows the Mg containing alloys experienced many steps of chemical reactions. This indicates that besides AlN presence as a major phase, other compounds also exist in the final product. The X-ray diffraction results confirmed the existence of oxide phases such as !-Al2O3, MgAl2O4 and MgO in addition to residual Si and Al metal. The presence of oxide compounds is believed to be due to the reaction between the alloying elements and residual oxygen gas left in the reaction atmosphere. It was also found that Si could play a role in promoting the weight gain of the composite produced. The heating rate has also a profound effect on the weight gain, whereby higher heating rate resulted in low yielded of AlN during the nitridation reaction of the Al-Mg-Si alloys. Universiti Kebangsaan Malaysia 2007-12 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/105/1/1.pdf Roslinda Shamsudin, and Saiful Rizam Shamsuddin, and Abdul Razak Daud, and Muhammad Azmi Abdul Hamid, (2007) Nitridation of AL-Mg-Si alloys through dynamic heating = Penitridaan aloi AL-Mg-Si secara pemanasan dinamik. Sains Malaysiana, 36 (2). pp. 195-200. ISSN 0126-6039 |
| spellingShingle | Roslinda Shamsudin, Saiful Rizam Shamsuddin, Abdul Razak Daud, Muhammad Azmi Abdul Hamid, Nitridation of AL-Mg-Si alloys through dynamic heating = Penitridaan aloi AL-Mg-Si secara pemanasan dinamik |
| title | Nitridation of AL-Mg-Si alloys through dynamic heating = Penitridaan aloi AL-Mg-Si secara pemanasan dinamik |
| title_full | Nitridation of AL-Mg-Si alloys through dynamic heating = Penitridaan aloi AL-Mg-Si secara pemanasan dinamik |
| title_fullStr | Nitridation of AL-Mg-Si alloys through dynamic heating = Penitridaan aloi AL-Mg-Si secara pemanasan dinamik |
| title_full_unstemmed | Nitridation of AL-Mg-Si alloys through dynamic heating = Penitridaan aloi AL-Mg-Si secara pemanasan dinamik |
| title_short | Nitridation of AL-Mg-Si alloys through dynamic heating = Penitridaan aloi AL-Mg-Si secara pemanasan dinamik |
| title_sort | nitridation of al mg si alloys through dynamic heating penitridaan aloi al mg si secara pemanasan dinamik |
| url | http://journalarticle.ukm.my/105/1/1.pdf |
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