Mn-Ni-Ti系およびMn-Ni-Zr系非強磁性エリンバー型合金について

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  • Nonferromagnetic Elinvar-Type Alloys in the Mn-Ni-Ti and Mn-Ni-Zr Systems
  • Mn Ni Tiケイ オヨビ Mn Ni Zrケイ ヒ キョウジセイ エリンバ

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Young’s modulus at high temperatures, thermal expansion, rigidity modulus, hardness and tensile strength at room temperature have been measured for Mn-Ni-Ti and Mn-Ni-Zr alloys subjected to various heat treatments and cold working. Young’s modulus vs temperature curves of the annealed ternary alloys indicate the changes associated with the phase transformation and with the antiferromagnetic\ ightleftarrowsparamagnetic transition. The temperature coefficient of Young’s modulus at room temperature are affected by annealing, cold working and reheating after cold working and composition. The temperature coefficient vs composition curves has a positive maximum, showing the Elinvar characteristics at room temperature. Young’s modulus, hardness and tensile strength of Mn-Ni binary alloys increase with increasing alloying element Ti or Zr.

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