書誌事項
- タイトル別名
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- Optimization of the Interlocking Grain Structure in P/M Tungsten Fine Wires
- ショウケツ タングステン サイセン ニ オケル インターロック ソシキ ノ サ
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抄録
The measurement of the three-dimensional shape of secondary recrystallized grains, and delamination, creep and tensile tests are made to clarify the optimum interlocking grain structure which fills such two opposing roles as the improvement of creep resistance and the prevention of grain boundary fracture in P/M tungsten fine wires. Some parameters characteristic of the degree of interlocking among grains are derived and reliably reflect a distinctive change in the contours of grains which are three-dimensionally constructed. The effect of grain configuration to suppress creep rates with an increase in the degree of interlocking is detected in the structure which has a small area of grain boundary. However, the increase in creep rate is confirmed in the structure which has a large area of grain boundary because of an additional interlocking. On the other hand, the tensile strength increases monotonically at room temperature as the grains are interlocked. It is therefore possible to decide the optimum structure which realizes both high tensile strength and high creep resistance at the same time.
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 59 (12), 1230-1236, 1995
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
- 1390282681468132992
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- NII論文ID
- 130007341983
- 10001671978
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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
- 3641730
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- データソース種別
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- JaLC
- NDL
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- 抄録ライセンスフラグ
- 使用不可