書誌事項
- タイトル別名
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- Damping Capacity and Magnetic and Mechanical Properties of Ni-Co-Nb Alloys
- Ni Co Nbケイ ゴウキン ノ ゲンスイノウ ナラビニ ジキテキ オヨビ
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The internal friction Q−1, the magnetic hysteresis loop and the mechanical properties were investigated for three Ni-Co-Nb alloy series containing 25, 45 and 65%Co, respectively. Measurements of the Q−1 and the rigidity modulus G were carried out by the inverted torsion pendulum method. The coercive force Hc was measured using an automatic recording fluxmeter, and the tensile test was performed using an Instron-type machine.<BR>In both states of furnace-cooling and water-quenching, the maximum internal friction, Qmax−1, for the maximum shear strain-amplitude became the highest at 3%Nb for the Ni-25%Co-Nb alloy series and at 5%Nb for the Ni-45%Co-Nb alloy series. For the Ni-65%Co-Nb alloy series, the Qmax−1 became the highest at 1%Nb upon furnace-cooling or at 5%Nb upon water-quenching.<BR>The Qmax−1 value of the alloys having the reasonably small Hc was fairly high, while the Qmax−1 of the alloys having the large Hc was very low, because the compound Co2Nb or Co3Nb precipitated in the α phase matrix. Furthermore, the larger the ΔG effect, the higher the Q−1 became.<BR>The tensile strength and the yield strength of the present three alloy series increased with increase in Nb content, and the elongation of these alloys was generally large.
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 48 (3), 314-319, 1984
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
- 1390282681461591040
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- NII論文ID
- 130007338021
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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
- 2985871
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- NDL
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