Spontaneous Volume Magnetostriction of (Fe<SUB>1&minus;<I>x</I></SUB>Co<I><SUB>x</SUB></I>)<SUB>0.89</SUB>Cr<SUB>0.11</SUB> Alloys

• Saitô Hideo

  The Research Instute for Iron, Steel and Other Metals, Tohoku University

• Fujimori Hiroyasu

  The Research Instute for Iron, Steel and Other Metals, Tohoku University

• Saitô Toshiro

  The Research Instute for Iron, Steel and Other Metals, Tohoku University

書誌事項

タイトル別名

• Spontaneous Volume Magnetostriction of (Fe<SUB>1−<I>x</I></SUB>Co<I><SUB>x</SUB></I>)<SUB>0.89</SUB>Cr<SUB>0.11</SUB> Alloys

抄録

To make clear the origin of the Invar property, some physical properties of fcc (Fe_1−xCo_x)_0.89Cr_0.11 alloys which are most typical Invar alloys in the Fe–Co–Cr system (Stainless Invar) have been studied so far. In the present experiment, the temperature and composition dependences of thermal expansion for the alloys were measured and the following results were obtained:<BR>It has been ascertained that these alloys have the same remarkable Invar characteristics as reported by Masumoto. Thermal expansions measurements at sufficiently high temperatures made it clear that the Invar property is caused by the effect of the spontaneous volume magnetostriction in the temperature range below the Curie point of short-range magnetic ordering. And the spontaneous volume magnetostriction at 0°K has been esitmated from the normal thermal expansion curves (only lattice vibration), compared with the thermal expansion of Ni. The value obtained on an alloy of x=0.6 was 12±1×10⁻³, about three times greater than that for Fe–Ni Invar alloys.<BR>The microscopic mechanism or the cause of this large spontaneous volume magnetostriction may be ascribed to (1) the magnetic mechanism due to the characteristic electronic state of Invar alloys and (2) the elastic mechanism due to peculiar lattice properties of Invar alloys associateb with the α\ ightleftharpoonsγ martensitic transformation process which is common in each system having the Invar region.

収録刊行物

• Transactions of the Japan Institute of Metals

  Transactions of the Japan Institute of Metals 11 (1), 68-71, 1970

  社団法人 日本金属学会

キーワード

• General Engineering

詳細情報

• CRID: 1390282680094182272
• NII論文ID: 130003485005
• DOI: 10.2320/matertrans1960.11.68
• ISSN: 24324701
• ISSN: 00214434
• Web Site: https://www.jstage.jst.go.jp/article/matertrans1960/11/1/11_1_68/_pdf
• 本文言語コード: en
• データソース種別:
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• 抄録ライセンスフラグ: 使用不可