Microstructures and Partitioning Ratios of Alloying Elements in Rhenium Containing Nickel-based Single Crystal Superalloys
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- MATSUGI Kazuhiro
- Graduate School, Toyohashi University of Technology
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- MIYAZAKI Shogo
- Graduate School, Toyohashi University of Technology
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- MURATA Yoshinori
- Toyohashi University of Technology
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- MORINAGA Masahiko
- Toyohashi University of Technology
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- YUKAWA Natsuo
- Toyohashi University of Technology
Bibliographic Information
- Other Title
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- レニウムを含むニッケル基単結晶超合金の組織と合金元素の分配比
- レニウム オ フクム ニッケルキ タンケッショウ チョウゴウキン ノ ソシキ
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Abstract
In order to obtain some criteria for determining the optimum compositions of rhenium (Re) containing nickel-based single crystal superalloys, the phase stability and the partition ratios of alloying elements between γ and γ' phases were investigated using the Ni-10Cr-12Al-1.2Ti-2.6Ta-2.0W-0.7Mo-01Re (mol%) alloys. Most of Re atoms were found to be distributed mainly in the γ phase and alter significantly the partition ratios of the other elements between γ and γ' phases. It was shown that the decrease of Cr, Ta, W, Mo contents and the increase of Al content were most desirable in the design of alloys containing more than 0.25 mol % Re. Further, in order to investigate the possibility Co addition into the Re containing alloys, its effects on the phase stability and the partition ratios of elements were examined with the Ni-10Cr-12Al-1.5Ti-2.1Ta-2.3W-0.8Mo-0.25Re(mol %) alloys in which 09mol % Co was substituted for Ni. It became evident from the present experiment that the Co substitution for Ni did not induce any large changes in the phase stability and also in the partition ratios of the alloying elements in this system.
Journal
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- Tetsu-to-Hagane
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Tetsu-to-Hagane 78 (4), 658-665, 1992
The Iron and Steel Institute of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390282680192433280
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- NII Article ID
- 110001481116
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- NII Book ID
- AN00151251
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- ISSN
- 18832954
- 00211575
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- NDL BIB ID
- 3759908
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed