Oxidation behavior and improvement in nonflammability of LPSO-type Mg–Zn–Y–Sr alloy

Mg97Zn1Y2 alloys with high ignition temperatures were developed by adding Sr. The addition of Sr resulted in the formation of a uniform and thin Y2O3 film. Mg–Zn–Y alloys containing at least 0.25 at.% Sr exhibited ignition temperatures of 1270–1320 K. As a result of EDS measurement, Sr was found to...

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Main Authors: Shin-ichi Inoue, Kazumasa Iwanaga, Yoshihito Kawamura
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2024-02-01
Series:Journal of Magnesium and Alloys
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2213956724000446
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author Shin-ichi Inoue
Kazumasa Iwanaga
Yoshihito Kawamura
author_facet Shin-ichi Inoue
Kazumasa Iwanaga
Yoshihito Kawamura
author_sort Shin-ichi Inoue
collection DOAJ
description Mg97Zn1Y2 alloys with high ignition temperatures were developed by adding Sr. The addition of Sr resulted in the formation of a uniform and thin Y2O3 film. Mg–Zn–Y alloys containing at least 0.25 at.% Sr exhibited ignition temperatures of 1270–1320 K. As a result of EDS measurement, Sr was found to be concentrated in the Y2O3 film. In addition, a mixed film of MgO and SrO formed on the outer layer in the 1.5 at.% Sr-containing Mg97Zn1Y2 alloy. These findings suggest that the uniform and thin Y2O3 film that maintains high soundness at high temperatures was formed owing to valence control and the formation of a protective outer oxide film.
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spelling doaj.art-6ccbd37533f643fa8f391d107206adc62024-03-15T04:43:27ZengKeAi Communications Co., Ltd.Journal of Magnesium and Alloys2213-95672024-02-01122742749Oxidation behavior and improvement in nonflammability of LPSO-type Mg–Zn–Y–Sr alloyShin-ichi Inoue0Kazumasa Iwanaga1Yoshihito Kawamura2Magnesium Research Center, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan; Corresponding author.Department of Materials Science, Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, JapanMagnesium Research Center, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, JapanMg97Zn1Y2 alloys with high ignition temperatures were developed by adding Sr. The addition of Sr resulted in the formation of a uniform and thin Y2O3 film. Mg–Zn–Y alloys containing at least 0.25 at.% Sr exhibited ignition temperatures of 1270–1320 K. As a result of EDS measurement, Sr was found to be concentrated in the Y2O3 film. In addition, a mixed film of MgO and SrO formed on the outer layer in the 1.5 at.% Sr-containing Mg97Zn1Y2 alloy. These findings suggest that the uniform and thin Y2O3 film that maintains high soundness at high temperatures was formed owing to valence control and the formation of a protective outer oxide film.http://www.sciencedirect.com/science/article/pii/S2213956724000446Magnesium alloyYttriumStrontiumHigh-temperature oxidationNonflammability
spellingShingle Shin-ichi Inoue
Kazumasa Iwanaga
Yoshihito Kawamura
Oxidation behavior and improvement in nonflammability of LPSO-type Mg–Zn–Y–Sr alloy
Journal of Magnesium and Alloys
Magnesium alloy
Yttrium
Strontium
High-temperature oxidation
Nonflammability
title Oxidation behavior and improvement in nonflammability of LPSO-type Mg–Zn–Y–Sr alloy
title_full Oxidation behavior and improvement in nonflammability of LPSO-type Mg–Zn–Y–Sr alloy
title_fullStr Oxidation behavior and improvement in nonflammability of LPSO-type Mg–Zn–Y–Sr alloy
title_full_unstemmed Oxidation behavior and improvement in nonflammability of LPSO-type Mg–Zn–Y–Sr alloy
title_short Oxidation behavior and improvement in nonflammability of LPSO-type Mg–Zn–Y–Sr alloy
title_sort oxidation behavior and improvement in nonflammability of lpso type mg zn y sr alloy
topic Magnesium alloy
Yttrium
Strontium
High-temperature oxidation
Nonflammability
url http://www.sciencedirect.com/science/article/pii/S2213956724000446
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AT kazumasaiwanaga oxidationbehaviorandimprovementinnonflammabilityoflpsotypemgznysralloy
AT yoshihitokawamura oxidationbehaviorandimprovementinnonflammabilityoflpsotypemgznysralloy