Electron tomography imaging and analysis of γ′ and γ domains in Ni-based superalloys

Satoshi Hata; Kosuke Kimura; Hongye Gao; Syo Matsumura; Minoru Doi; Tomokazu Moritani; Jonathan S. Barnard; Jenna R. Tong; Jo H. Sharp; Paul A. Midgley

doi:10.1002/adma.200702461

Electron tomography imaging and analysis of γ′ and γ domains in Ni-based superalloys

Satoshi Hata, Kosuke Kimura, Hongye Gao, Syo Matsumura, Minoru Doi, Tomokazu Moritani, Jonathan S. Barnard, Jenna R. Tong, Jo H. Sharp, Paul A. Midgley

研究成果: ジャーナルへの寄稿 › 学術誌 › 査読

36 被引用数 (Scopus)

抄録

A study was conducted to perform 3D microstructural analysis based on electron tomography. The study also attempted to investigate a unique domain structure in a Ni-Al-Ti alloy. A two-phase microstructure,composed of L1 ₂-ordered γ domains with cuboidal shape and an A1-disordered γ matrix exhibited secondary phase separation during aging precipitation of fine γ in each domain. A variety of precipitation behaviors and microstructural evolutions were observed in the second stage of phase separation, depending on on the alloy composition. The study also demonstrated tomographic DFTEM and EFTEM observations, to clarify the 3D morphology of the γ precipitates and compositional distribution in the phase-separated microstructure.

本文言語	英語
ページ（範囲）	1905-1909
ページ数	5
ジャーナル	Advanced Materials
巻	20
号	10
DOI	https://doi.org/10.1002/adma.200702461
出版ステータス	出版済み - 5月 19 2008

!!!All Science Journal Classification (ASJC) codes

材料科学一般
材料力学
機械工学

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title = "Electron tomography imaging and analysis of γ′ and γ domains in Ni-based superalloys",

abstract = "A study was conducted to perform 3D microstructural analysis based on electron tomography. The study also attempted to investigate a unique domain structure in a Ni-Al-Ti alloy. A two-phase microstructure,composed of L1 2-ordered γ domains with cuboidal shape and an A1-disordered γ matrix exhibited secondary phase separation during aging precipitation of fine γ in each domain. A variety of precipitation behaviors and microstructural evolutions were observed in the second stage of phase separation, depending on on the alloy composition. The study also demonstrated tomographic DFTEM and EFTEM observations, to clarify the 3D morphology of the γ precipitates and compositional distribution in the phase-separated microstructure.",

author = "Satoshi Hata and Kosuke Kimura and Hongye Gao and Syo Matsumura and Minoru Doi and Tomokazu Moritani and Barnard, {Jonathan S.} and Tong, {Jenna R.} and Sharp, {Jo H.} and Midgley, {Paul A.}",

year = "2008",

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doi = "10.1002/adma.200702461",

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journal = "Advanced Materials",

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T1 - Electron tomography imaging and analysis of γ′ and γ domains in Ni-based superalloys

AU - Hata, Satoshi

AU - Kimura, Kosuke

AU - Gao, Hongye

AU - Matsumura, Syo

AU - Doi, Minoru

AU - Moritani, Tomokazu

AU - Barnard, Jonathan S.

AU - Tong, Jenna R.

AU - Sharp, Jo H.

AU - Midgley, Paul A.

PY - 2008/5/19

Y1 - 2008/5/19

N2 - A study was conducted to perform 3D microstructural analysis based on electron tomography. The study also attempted to investigate a unique domain structure in a Ni-Al-Ti alloy. A two-phase microstructure,composed of L1 2-ordered γ domains with cuboidal shape and an A1-disordered γ matrix exhibited secondary phase separation during aging precipitation of fine γ in each domain. A variety of precipitation behaviors and microstructural evolutions were observed in the second stage of phase separation, depending on on the alloy composition. The study also demonstrated tomographic DFTEM and EFTEM observations, to clarify the 3D morphology of the γ precipitates and compositional distribution in the phase-separated microstructure.

AB - A study was conducted to perform 3D microstructural analysis based on electron tomography. The study also attempted to investigate a unique domain structure in a Ni-Al-Ti alloy. A two-phase microstructure,composed of L1 2-ordered γ domains with cuboidal shape and an A1-disordered γ matrix exhibited secondary phase separation during aging precipitation of fine γ in each domain. A variety of precipitation behaviors and microstructural evolutions were observed in the second stage of phase separation, depending on on the alloy composition. The study also demonstrated tomographic DFTEM and EFTEM observations, to clarify the 3D morphology of the γ precipitates and compositional distribution in the phase-separated microstructure.

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JO - Advanced Materials

JF - Advanced Materials

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Electron tomography imaging and analysis of γ′ and γ domains in Ni-based superalloys

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!!!All Science Journal Classification (ASJC) codes

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