Formations of AZ91/Al2O3 nano-composite layer by friction stir processing
Composite layers containing ~0.8 %vol Al2O3 nanoparticles were produced on AZ91 magnesium alloy by friction stir processing (FSP). The treated layers were characterized using optical and scanning electron microscopes, as well as microhardness and wear testing units. It was noticed that, by reducing...
| 發表在: | Journal of Magnesium and Alloys |
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| Main Authors: | , , , |
| 格式: | Article |
| 語言: | 英语 |
| 出版: |
KeAi Communications Co., Ltd.
2016-12-01
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| 主題: | |
| 在線閱讀: | http://www.sciencedirect.com/science/article/pii/S2213956716300561 |
| _version_ | 1850409349334171648 |
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| author | D. Ahmadkhaniha M. Heydarzadeh Sohi A. Salehi R. Tahavvori |
| author_facet | D. Ahmadkhaniha M. Heydarzadeh Sohi A. Salehi R. Tahavvori |
| author_sort | D. Ahmadkhaniha |
| collection | DOAJ |
| container_title | Journal of Magnesium and Alloys |
| description | Composite layers containing ~0.8 %vol Al2O3 nanoparticles were produced on AZ91 magnesium alloy by friction stir processing (FSP). The treated layers were characterized using optical and scanning electron microscopes, as well as microhardness and wear testing units. It was noticed that, by reducing the rotational speed and increasing the travel speed, the grain size of the treated layer reduces and its hardness increases. In addition, the presence of nano Al2O3 reduces the grain sizes of the layers further and increases their hardness. Furthermore, FSP of AZ91 with Al2O3 particles improved the wear resistance significantly and changed the wear mechanism from oxidation and adhesive mode in the as-received AZ91 to oxidation and abrasive in the FSPed specimens. Finally, the rotational speed of 800 rpm and the travel speed of 40 mm/min were the optimum parameters for achieving a suitable composite layer with the highest hardness and wear resistance among the treated layers. |
| format | Article |
| id | doaj-art-e5fa9c8339f64005ab0baf1bd99222ae |
| institution | Directory of Open Access Journals |
| issn | 2213-9567 |
| language | English |
| publishDate | 2016-12-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| spelling | doaj-art-e5fa9c8339f64005ab0baf1bd99222ae2025-08-19T22:47:17ZengKeAi Communications Co., Ltd.Journal of Magnesium and Alloys2213-95672016-12-014431431810.1016/j.jma.2016.11.002Formations of AZ91/Al2O3 nano-composite layer by friction stir processingD. Ahmadkhaniha0M. Heydarzadeh Sohi1A. Salehi2R. Tahavvori3School of Engineering, Islamic Azad University of Karaj, Karaj, IranSchool of Metallurgy and Materials, College of Engineering, University of Tehran, P.O. Box: 1155-4563, Tehran, IranSchool of Engineering, Islamic Azad University of Karaj, Karaj, IranSchool of Engineering, Islamic Azad University of Karaj, Karaj, IranComposite layers containing ~0.8 %vol Al2O3 nanoparticles were produced on AZ91 magnesium alloy by friction stir processing (FSP). The treated layers were characterized using optical and scanning electron microscopes, as well as microhardness and wear testing units. It was noticed that, by reducing the rotational speed and increasing the travel speed, the grain size of the treated layer reduces and its hardness increases. In addition, the presence of nano Al2O3 reduces the grain sizes of the layers further and increases their hardness. Furthermore, FSP of AZ91 with Al2O3 particles improved the wear resistance significantly and changed the wear mechanism from oxidation and adhesive mode in the as-received AZ91 to oxidation and abrasive in the FSPed specimens. Finally, the rotational speed of 800 rpm and the travel speed of 40 mm/min were the optimum parameters for achieving a suitable composite layer with the highest hardness and wear resistance among the treated layers.http://www.sciencedirect.com/science/article/pii/S2213956716300561FSPNano-compositeMagnesiumAl2O3MicrohardnessWear |
| spellingShingle | D. Ahmadkhaniha M. Heydarzadeh Sohi A. Salehi R. Tahavvori Formations of AZ91/Al2O3 nano-composite layer by friction stir processing FSP Nano-composite Magnesium Al2O3 Microhardness Wear |
| title | Formations of AZ91/Al2O3 nano-composite layer by friction stir processing |
| title_full | Formations of AZ91/Al2O3 nano-composite layer by friction stir processing |
| title_fullStr | Formations of AZ91/Al2O3 nano-composite layer by friction stir processing |
| title_full_unstemmed | Formations of AZ91/Al2O3 nano-composite layer by friction stir processing |
| title_short | Formations of AZ91/Al2O3 nano-composite layer by friction stir processing |
| title_sort | formations of az91 al2o3 nano composite layer by friction stir processing |
| topic | FSP Nano-composite Magnesium Al2O3 Microhardness Wear |
| url | http://www.sciencedirect.com/science/article/pii/S2213956716300561 |
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