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Kyoko Kawagishi
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Raft Structure of Nickel Base Single-Crystal Superalloys
Description/Abstract:
Series of Ni-base single-crystal superalloys with superior thermal durability have been developed to improve thermal efficiency of gas tu...
Keyword:
Ni-base single crystal suprealloys
,
creep strength
,
elastic misfit
, and
raft structure
Resource Type:
Article
Author:
Takuma Saito
,
Hiroshi Harada
,
Tadaharu Yokokawa
,
Makoto Osawa
,
Kyoko Kawagishi
, and
Shinsuke Suzuki
Journal:
MATERIALS TRANSACTIONS
Date Uploaded:
28/12/2024
Effect of Solution Heat Treatment on Dendritic Segregation and Creep Strength of Ni-Base Single Crystal Superalloy TMS-238
Description/Abstract:
To reduce the cost of solution heat treatment process Ni-base single crystal superalloy TMS-238 containing Re and Ru, quantitative analys...
Keyword:
Ni-base superalloy
,
high-temperature creep strength
,
segregation
,
single crystal
, and
solution heat treatment
Resource Type:
Article
Author:
Tadaharu Yokokawa
,
Toshio Osada
,
Chihiro Tabata
,
Takuma Kohata
,
Yuji Takata
,
Michinari Yuyama
, and
Kyoko Kawagishi
Journal:
MATERIALS TRANSACTIONS
Date Uploaded:
25/12/2024
Improvement of Oxidation Resistance for Ni-Base Single Crystal Superalloy TMS-238 by Suppression of Sb Segregation at Oxide/Substrate Interface Using CaO
Description/Abstract:
Impurity Sb degrades the oxidation resistance of Ni-base superalloys after Al2O3 crucible melting. The purpose of this study is to clarif...
Keyword:
Ni-base superalloy
Resource Type:
Article
Author:
Hirotoshi Maezawa
,
Chihiro Tabata
,
Yuji Takata
,
Jun Uzuhashi
,
Tadakatsu Ohkubo
,
Tadaharu Yokokawa
,
Hiroshi Harada
,
Kyoko Kawagishi
, and
Shinsuke Suzuki
Journal:
Metallurgical and Materials Transactions B
Date Uploaded:
07/11/2024
Three-dimensional high-resolution crystallographic observation of the entire volume of microstructurally small fatigue cracks in Ni-Co based superalloy
Description/Abstract:
The crystallographic features of microstructurally small fatigue cracks (MSFCs) in a Ni-Co-based superalloy were analyzed by using a Xe p...
Keyword:
3D observation
,
Crystal orientation
,
Ni-Co-based superalloy
,
PFIB-SEM
, and
Small fatigue crack
Resource Type:
Article
Author:
Hideaki Nishikawa
,
Yoshiyuki Furuya
,
Toshio Osada
,
Kyoko Kawagishi
, and
Toru Hara
Journal:
SCRIPTA MATERIALIA
Date Uploaded:
04/09/2024
Effect of Ca Addition on the Oxidation Resistance of Ni–Al Alloy
Description/Abstract:
Ni-base superalloys are known for their high temperature oxidation resistance, however, impurity of S at ppm order can significantly dec...
Keyword:
Ni-base superalloy
,
oxidation resistance
, and
sulfur segregation
Resource Type:
Article
Author:
Chihiro Tabata
,
Kyoko Kawagishi
,
Tadaharu Yokokawa
,
Jun Uzuhashi
,
Tadakatsu Ohkubo
,
Hiroshi Harada
, and
Shinsuke Suzuki
Journal:
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
Date Uploaded:
05/01/2024
Virtual heat treatment for γ-γ′ two-phase Ni-Al alloy on the materials Integration system, MInt
Description/Abstract:
Aiming to designing the aging heat treatment conditions to maximize the 0.2 % proof stress of γ-γ′ two-phase Ni-based superalloys, we dev...
Keyword:
Image analysis
,
Ni-Al alloy
,
Phase field simulation
, and
γ-γ′two-phase
Resource Type:
Article
Author:
Toshio Osada
,
Toshiyuki Koyama
,
Dmitry S. Bulgarevich
,
Satoshi Minamoto
,
Makoto Osawa
,
Makoto Watanabe
,
Kyoko Kawagishi
, and
Masahiko Demura
Date Uploaded:
01/02/2023
Date Modified:
02/05/2024
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Ni-base superalloy
3
3D observation
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Language
English
6
Publisher
Springer Science and Business Media LLC
2
Elsevier BV
1
National Institute for Materials Science
1
The Japan Institute of Metals and Materials
1
The Japan Institute of Metals and Materials
1
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Article
6
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open
6
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In Copyright
4
Creative Commons BY Attribution 4.0 International
1
Creative Commons BY-NC-ND Attribution-NonCommercial-NoDerivs 4.0 International
1
Author
Kyoko Kawagishi
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6
Tadaharu Yokokawa
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Chihiro Tabata
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Funder
the New Energy and Industrial Technology Development Organization (NEDO)
1
Journal
MATERIALS TRANSACTIONS
2
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
1
Metallurgical and Materials Transactions B
1
SCRIPTA MATERIALIA
1