書誌事項
- タイトル別名
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- Preparation of Nb-Cr Alloy Powder by Hydrogenation
- スイソ ショリ ニヨル Nb Cr ゴウキン フンマツ ノ サクセイ
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The pulverization by hydrogenation is a new method for fabricating intermetallic powders with high quality and low cost. In this study, the pulverization by hydrogenation was studied for various Nb-Cr alloys. The hydrogenation was performed under the hydrogen atmosphere of 0.1 MPa in an arc-melting chamber without exposure to air after arc-melting. Constituent phases and lattice constants before and after hydrogenation were examined by X-ray diffraction analysis. It is found that the pulverization by hydrogenation occurs only in two phase alloys consisting of Nb solid solution (Nbss) and NbCr2. In the Nbss/NbCr2 alloys, the lattice constant of Nbss increases remarkably through hydrogenation, while that of NbCr2 does not change. It is concluded that the pulverization of the Nbss/NbCr2 two phase alloy is caused by large strain accompanied with lattice expansion of Nbss through hydrogenation and crack nucleation at intrinsically brittle NbCr2.
収録刊行物
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- 日本金属学会誌
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日本金属学会誌 62 (7), 681-689, 1998
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390001206491188352
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- NII論文ID
- 10001970406
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- NII書誌ID
- AN00187860
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- ISSN
- 18806880
- 24337501
- 00214876
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- NDL書誌ID
- 4523267
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- データソース種別
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- JaLC
- NDL
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