18-12型ステンレス鋼単結晶のヤング率の異方性とその温度変化

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書誌事項

タイトル別名
  • Elastic Anisotropy and its Temperature Variation of Single Crystals of 18-12 type Stainless Steel
  • 18-12ガタ ステンレス コウタンケッショウ ノ ヤングリツ ノ イホウセイ ト ソノ オンド ヘンカ

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説明

Rod-form single crystals of fcc 18-12 type stainless steel about 3 mm in diameter and 12 cm in length were prepared and the thermal expansion and Young’s modulus in the temperature range −150° to 500°C and the rigidity modulus at 20°C were measured by means of a dilatometer, a vibrator-controlled oscillator system and the torsion pendulum method, respectively. The values calculated from the measured ones show that the Young’s moduli at 20°C in the ⟨100⟩, ⟨110⟩ and ⟨111⟩ directions of the single crystals are 10.34, 21.00 and 32.00×105 kg/cm2, and the rigidity moduli at 20°C are 14.13, 5.92 and 6.70×105 kg/cm2, respectively, the elastic anisotropy being very large. The Young’s moduli in the three principal directions decrease monotonously with increasing temperature. The mean temperature coefficients of Young’s moduli at 0°∼40°C are −51.70, −37.80 and −24.90×10−5 in the ⟨100⟩, ⟨110⟩ and ⟨111⟩ directions, respectively. The calculated values of Young’s modulus for a polycrystal agree fairly well with the measured ones for the polycrystal specimen prepared by melting.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 35 (5), 518-522, 1971

    公益社団法人 日本金属学会

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