On the Thermal Expansion Coefficient, and Temperature Coefficient of Young’s Modulus and Its Equilibrium Diagram of Ferromagnetic Cobalt-Manganese Alloys
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- Masumoto Hakaru
- The Foundation; The Research Institute of Electric and Magnetic Alloys
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- Sawaya Shôhachi
- The Foundation; The Research Institute of Electric and Magnetic Alloys
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- Kikuchi Michio
- The Foundation; The Research Institute of Electric and Magnetic Alloys
Bibliographic Information
- Other Title
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- 強磁性Co-Mn系合金の熱膨張係数,ヤング率の温度係数ならびにその平衡状態図について
- キョウジセイ Co-Mnケイ ゴウキン ノ ネツ ボウチョウ ケイスウ , ヤングリツ ノ オンド ケイスウ ナラビニ ソノ ヘイコウ ジョウタイズ ニ ツイテ
- On the Thermal Expansion Coefficient, and Temperature Coefficient of Young’s Modulus and Its Equilibrium Diagram of Ferromagnetic Cobalt-Manganese Alloys
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Abstract
Measurements of the thermal expansion, natural frequency of vibration and magnetization of ferromagnetic cobalt-manganese alloys were carried out at various temperatures, and a new equilibrium diagram was constructed. The equilibrium diagram shows that the ε-α transformation continues up to a composition range of 19.30%Mn and the magnetic transformation point in the α phase is 0°C at a concentration of 28.20%Mn. Further, the coefficient of thermal expansion and the temperature coefficient of Young’s modulus at room temperature were determined, from which it has been ascertained that a Co-23.85%Mn alloy in the ferromagnetic region of α phase shows a minimum value of 14.04×10−6 in thermal expansion coefficient and a maximum value of 2.52×10−5 in temperature coefficient of Young’s modulus. The cause of such abnormal properties of the alloy can be explained by Masumoto’s rule in regard to Invar.
Journal
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- Journal of the Japan Institute of Metals and Materials
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Journal of the Japan Institute of Metals and Materials 33 (9), 999-1003, 1969
The Japan Institute of Metals and Materials
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Details 詳細情報について
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- CRID
- 1390282681460835200
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- NII Article ID
- 130007336687
- 40018256819
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- NII Book ID
- AN00187860
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- ISSN
- 18806880
- 24337501
- 00214876
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- NDL BIB ID
- 8372133
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed