TEM observation of age-hardening precipitation in Mg-Gd-Y alloys as different Gd/Y ratio

Y. Matsuoka; K. Watanabe; J. Nakamura; W. Lefebvre; S. Saikawa; S. Ikeno; K. Matsuda

doi:10.1515/amm-2015-0242

TEM observation of age-hardening precipitation in Mg-Gd-Y alloys as different Gd/Y ratio

Y. Matsuoka^*, K. Watanabe, J. Nakamura, W. Lefebvre, S. Saikawa, S. Ikeno, K. Matsuda

^*この論文の責任著者

材料デザイン工学科

研究成果: ジャーナルへの寄稿 › 学術論文 › 査読

1 被引用数 (Scopus)

抄録

In this study, the early stage of aging in Mg-Gd-Y alloys has been observed by transmission electron microscopy (TEM), high angle annular dark field-scanning transmission electron microscopy (HAADF-STEM) and calculations of images and electron density and bond overlap population (BOP) by first principal to understand the origin of precipitation in this alloy. The small hexagon of 0.37 nm is the first precipitate in this alloy, and this is the evidence of short range ordering of D0₁₉ structure. This is referred as the pre β″-phase. In the peak aged condition, β' phase with bco structure was mainly observed.

本文言語	英語
ページ（範囲）	971-972
ページ数	2
ジャーナル	Archives of Metallurgy and Materials
巻	60
号	2A
DOI	https://doi.org/10.1515/amm-2015-0242
出版ステータス	出版済み - 2015

ASJC Scopus 主題領域

金属および合金

文献へのアクセス

10.1515/amm-2015-0242

引用スタイル

@article{27de219412054f35be641b6a24d97250,

title = "TEM observation of age-hardening precipitation in Mg-Gd-Y alloys as different Gd/Y ratio",

abstract = "In this study, the early stage of aging in Mg-Gd-Y alloys has been observed by transmission electron microscopy (TEM), high angle annular dark field-scanning transmission electron microscopy (HAADF-STEM) and calculations of images and electron density and bond overlap population (BOP) by first principal to understand the origin of precipitation in this alloy. The small hexagon of 0.37 nm is the first precipitate in this alloy, and this is the evidence of short range ordering of D019 structure. This is referred as the pre β″-phase. In the peak aged condition, β' phase with bco structure was mainly observed.",

keywords = "HAADF-STEM, Mg-RE alloy, Precipitation behavior, TEM",

author = "Y. Matsuoka and K. Watanabe and J. Nakamura and W. Lefebvre and S. Saikawa and S. Ikeno and K. Matsuda",

year = "2015",

doi = "10.1515/amm-2015-0242",

language = "英語",

volume = "60",

pages = "971--972",

journal = "Archives of Metallurgy and Materials",

issn = "1733-3490",

publisher = "Polish Academy of Sciences, Institute of Metallurgy and Materials Science",

number = "2A",

}

TY - JOUR

T1 - TEM observation of age-hardening precipitation in Mg-Gd-Y alloys as different Gd/Y ratio

AU - Matsuoka, Y.

AU - Watanabe, K.

AU - Nakamura, J.

AU - Lefebvre, W.

AU - Saikawa, S.

AU - Ikeno, S.

AU - Matsuda, K.

PY - 2015

Y1 - 2015

N2 - In this study, the early stage of aging in Mg-Gd-Y alloys has been observed by transmission electron microscopy (TEM), high angle annular dark field-scanning transmission electron microscopy (HAADF-STEM) and calculations of images and electron density and bond overlap population (BOP) by first principal to understand the origin of precipitation in this alloy. The small hexagon of 0.37 nm is the first precipitate in this alloy, and this is the evidence of short range ordering of D019 structure. This is referred as the pre β″-phase. In the peak aged condition, β' phase with bco structure was mainly observed.

AB - In this study, the early stage of aging in Mg-Gd-Y alloys has been observed by transmission electron microscopy (TEM), high angle annular dark field-scanning transmission electron microscopy (HAADF-STEM) and calculations of images and electron density and bond overlap population (BOP) by first principal to understand the origin of precipitation in this alloy. The small hexagon of 0.37 nm is the first precipitate in this alloy, and this is the evidence of short range ordering of D019 structure. This is referred as the pre β″-phase. In the peak aged condition, β' phase with bco structure was mainly observed.

KW - HAADF-STEM

KW - Mg-RE alloy

KW - Precipitation behavior

KW - TEM

UR - http://www.scopus.com/inward/record.url?scp=84959930221&partnerID=8YFLogxK

U2 - 10.1515/amm-2015-0242

DO - 10.1515/amm-2015-0242

M3 - 学術論文

AN - SCOPUS:84959930221

SN - 1733-3490

VL - 60

SP - 971

EP - 972

JO - Archives of Metallurgy and Materials

JF - Archives of Metallurgy and Materials

IS - 2A

ER -

TEM observation of age-hardening precipitation in Mg-Gd-Y alloys as different Gd/Y ratio

抄録

ASJC Scopus 主題領域

文献へのアクセス

フィンガープリント

引用スタイル