書誌事項
- タイトル別名
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- Diffusion of Ni<SUP>63</SUP> and W<SUP>185</SUP> in Nickel-Tungsten Alloys (On the Relation between High-Temperature Creep and Diffusion in Nickel Base Solid Solutions. III)
- Ni-W合金中のNi63およびW185の拡散
- Ni-W ゴウキン チュウ ノ Ni63 オヨビ W185 ノ カクサン
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抄録
The self-diffusion coefficients of nickel and tungsten in nickel-tungsten alloys containing 0 to 9 at%W have been measured with a usual lathe sectioning technique. Polycrystalline specimens having 1 to 4 mm grain size were used. Measurements were carried out over the temperature range from about 1100° to 1400°C. In this system, nickel atom diffuses more rapidly than tungsten atom, and the ratio of diffusion coefficient of nickel to that of tungsten is from 3 to 4 for each composition over the temperature range examined. Diffusion rates of both elements decrease with increasing tungsten contents. The frequency factors for nickel self-diffusion are 1.9, 30, 58 and 1.1 cm2/sec, and the activation energies are 68.0, 76.5, 80.6 and 70.3 kcal/mol for alloys containing 0, 1.7, 5.3 and 9.2 at% tungsten, respectively. For tungsten self-diffusion in respective alloys, the frequency factors obtained are 2.0, 2.2, 17 and 1.4 cm2/sec, and the activation energies are 71.5, 73.1, 80.5 and 74.5 kcal/mol.
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 28 (4), 197-200, 1964
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
- 1390282681459277184
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- NII論文ID
- 130007334256
- 40018258356
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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
- 9153796
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- データソース種別
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- JaLC
- NDL
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