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Study of Oxidation Resistance on Ti-Al Alloys: Effect of Heat Treatment and Chromium Addition on the Short Term Oxidation Behavior of Tial-Alloys At 900ºC in Air - Couverture souple

Manalu, Okti; Astrawinata, Rizal

 
9783847349822: Study of Oxidation Resistance on Ti-Al Alloys: Effect of Heat Treatment and Chromium Addition on the Short Term Oxidation Behavior of Tial-Alloys At 900ºC in Air
Couverture souple
ISBN 10 : 3847349821 ISBN 13 : 9783847349822
Editeur : LAP LAMBERT Academic Publishing, 2012

Synopsis

Results show that a decrease in Al content resulted in an increase in the amount of alpha2-Ti3Al phase, which led to an increase in the strength of the alloys but gave detrimental effect to the specific weight. In contrast, the higher Cr addition shows an increase in both strength and specific weight of the alloys. In addition, suitable amount of Cr addition (<15 at.%) can enhance high-temperature oxidation resistance of the alloys due to the existence of Laves and gamma phases as in the Ti-42Al-27Cr alloy. On the contrary, the presence of beta phase in Ti-45Al-10Cr alloy provides the lowest oxidation resistance. It is clear that the heat treatment process in this study gives some improvements in hardness and density of the alloys. On the other hand, the heat-treatment only improves high-temperature oxidation resistance in Ti-Al binary system alloys and not in the ternary system of the alloys.

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Présentation de l'éditeur

Results show that a decrease in Al content resulted in an increase in the amount of alpha2-Ti3Al phase, which led to an increase in the strength of the alloys but gave detrimental effect to the specific weight. In contrast, the higher Cr addition shows an increase in both strength and specific weight of the alloys. In addition, suitable amount of Cr addition (<15 at.%) can enhance high-temperature oxidation resistance of the alloys due to the existence of Laves and gamma phases as in the Ti-42Al-27Cr alloy. On the contrary, the presence of beta phase in Ti-45Al-10Cr alloy provides the lowest oxidation resistance. It is clear that the heat treatment process in this study gives some improvements in hardness and density of the alloys. On the other hand, the heat-treatment only improves high-temperature oxidation resistance in Ti-Al binary system alloys and not in the ternary system of the alloys.

Biographie de l'auteur

Mr. Okti Manalu pursued his master degree program in 2006 at School of Material and Mineral Resources Engineering of University Science Malaysia. His research focused on Advanced Material of Titanium Aluminides Alloys was supported by AUN-Seed Net/JICA and USM, Malaysia. Currently, he is working at multinational semiconductor company.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2012
Langue
anglais
ISBN 10 
3847349821
ISBN 13 
9783847349822
Reliure
Broché
Nombre de pages
184
Coordonnées du fabricant
non disponible
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