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Improvement of the properties of AZ91D magnesium alloy by treatment with a molten AlCl3–NaCl salt to form an Mg–Al intermetallic surface layer / Meifeng He in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 6, N° 3 (09/2009)
[article]
Titre : Improvement of the properties of AZ91D magnesium alloy by treatment with a molten AlCl3–NaCl salt to form an Mg–Al intermetallic surface layer Type de document : texte imprimé Auteurs : Meifeng He, Auteur ; Lei Liu, Auteur ; Yating Wu, Auteur ; Zhixin Tang, Auteur ; Wenbin Hu, Auteur Année de publication : 2009 Article en page(s) : p. 407-411 Note générale : Bibliogr. Langues : Américain (ame) Tags : Magnesium alloy Intermetallic compounds Coatings Corrosion Index. décimale : 667.9 Revêtements et enduits Résumé : A process for surface modification of AZ91D magnesium alloy has been carried out in AlCl3–NaCl molten salts melt at 573 K for 7 h. The process was used to form a diffusion alloying layer on the surface of the sample to improve corrosion resistance. The diffusion alloying layer was mainly composed of Mg–Al intermetallic compounds. The continued immersion test in 5% NaCl solutions displayed that molten salt diffusion-treated specimen had better corrosion resistance compared to the untreated AZ91D specimen. The polarization test indicated that the Mg–Al intermetallic compounds of the layer were an effective corrosion barrier to decrease the corrosion rate for AZ91D magnesium alloy when exposed to 3.5% NaCl solutions. The microhardness values of the Mg–Al intermetallic compounds were higher than those of the substrate. DOI : 10.1007/s11998-008-9132-6 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-008-9132-6.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=6122
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 6, N° 3 (09/2009) . - p. 407-411[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 011503 - Périodique Bibliothèque principale Documentaires Disponible Lower temperature aluminizing and its effect on improving corrosion resistance of iron treated by surface mechanical attrition treatment / Cheng Zhong in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 8, N° 1 (01/2011)
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Titre : Lower temperature aluminizing and its effect on improving corrosion resistance of iron treated by surface mechanical attrition treatment Type de document : texte imprimé Auteurs : Cheng Zhong, Auteur ; Wenbin Hu, Auteur ; Yiming Jiang, Auteur ; Bo Deng, Auteur ; Jin Li, Auteur Année de publication : 2011 Article en page(s) : p. 107-116 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Aluminiage
Anticorrosifs
Basses températures
Matériaux nanocristallins
Revêtement métallique
Revêtements protecteurs
Traîtements de surface
Usure (mécanique)Index. décimale : 667.9 Revêtements et enduits Résumé : An ultrafine-grained surface layer with the average grain size of about 28 nm in the surface layer was fabricated on a pure Fe plate by the surface mechanical attrition treatment (SMAT). Lower temperature aluminizing treatments of the SMAT samples were investigated by scanning electron microscope and X-ray energy dispersive spectroscope. The electrochemical corrosion behavior of the aluminized SMAT sample was studied in 0.05 mol/L Na2SO4 + 0.05 mol/L H2SO4 solution, in comparison with the original SMAT and the coarse-grained sample. The results showed that SMAT had a negative effect on the corrosion resistance of Fe. An aluminized surface layer was formed on SMAT sample by aluminizing treatment at 400°C, which was much lower than that of the conventional aluminizing treatment. A successive lower temperature aluminizing process made the aluminized layer thicker and continuous. The SMAT sample treated by a successive lower temperature aluminizing had much higher corrosion resistance and exhibited passive behavior, which was due to the formation of a protective passive film. DOI : 10.1007/s11998-010-9280-3 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-010-9280-3.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10928
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 8, N° 1 (01/2011) . - p. 107-116[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012853 - Périodique Bibliothèque principale Documentaires Disponible