ID | 115402 |
著者 |
Terada, Yoshihiro
Tokyo Institute of Technology
Takeyama, Masao
Tokyo Institute of Technology
|
キーワード | nickel-based alloy
gamma prime
morphology
lattice misfit
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資料タイプ |
学術雑誌論文
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抄録 | The morphological evolution of γ′ precipitates and lattice misfit with isothermal aging were closely investigated in wrought Ni-based superalloy Inconel X-750. The γ′ morphology dramatically changes in terms of shape, distribution, coalescence and coherency at the γ/γ′ interface. These processes and their dependence on temperature are summarized as a γ′ morphology map together with a time–temperature–precipitation (TTP) diagram through quantifying relevant morphological parameters. The lattice misfit was measured by X-ray diffraction and is positive; it decreases from 0.6% at room temperature to 0.1% at the aging temperature. These results suggest that the morphological changes of the γ′ precipitates are attributable to very low lattice misfit, the interaction of the elastic field, the volume fraction of the precipitates and incoherence in γ/γ′ interface.
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掲載誌名 |
Materials Transactions
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ISSN | 13459678
13475320
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cat書誌ID | AA1151294X
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出版者 | The Japan Institute of Metals and Materials
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巻 | 58
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号 | 5
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開始ページ | 817
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終了ページ | 824
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発行日 | 2017-04-25
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EDB ID | |
出版社版DOI | |
出版社版URL | |
フルテキストファイル | |
言語 |
eng
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著者版フラグ |
出版社版
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部局 |
理工学系
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