高濃度Ａｌ‐Ｍｇ固溶体での修正ノルトハイム則

• 小松 伸也

  関西大学工学部

• 池田 勝彦

  関西大学工学部

• 河本 知広

  関西大学大学院

• 田畑 義昭

  関西大学大学院

• 谷本 孝弘

  関西大学学生

書誌事項

タイトル別名

• Corrected Nordheim's Rule in high concentration Al-Mg solid solution.
• 高濃度Al-Mg固溶体での修正ノルトハイム則
• コウ ノウド Al-Mg コヨウタイ デ ノ シュウセイ ノルトハイムソク

抄録

Al–0 to 8.1 mass (0 to 8.9 at)% Mg solid solution alloys were annealed at 623 K for 3.6 ks and then water quenched. Resistivity at 77 and 300 K (ρ₇₇ and ρ₃₀₀) was measured. According to a corrected Nordheim's law, the relations between resistivity and atomic fraction of solute Mg, X, are obtained as follows;<br>ρ₃₀₀/nΩm=27.66+550.6X(1−1.72X)<br>ρ₇₇/nΩm=2.319+527.5X(1−1.72X)<br>The factor before the X (1 − 1.72 X) term becomes larger at elevated temperature of resistivity measurement. This fact shows that the solute Mg atom in aluminum has a positive deviation from Matthiessen's Rule, giving η=Δρ₃₀₀/Δρ₇₇= 1.044. The best fit relation between resistivity ratio R= ρ₃₀₀/ρ₇₇ and ρ₇₇ is ρ₇₇/nΩm=25.26/(R−1.043) +0.0019. Using most reliable relation between temperature and equilibrium solid solubility of magnesium to aluminum, the temperature-concentration-resistivity chart has been obtained. Utilisation of the chart is introduced.

収録刊行物

• 軽金属

  軽金属 48 (6), 294-298, 1998

  一般社団法人 軽金属学会

キーワード

• Al–Mg alloys
• solid solution
• electrical resistivity
• concentration effect
• temperature effect

詳細情報

• CRID: 1390001206335463936
• NII論文ID: 10002664864
• NII論文ID: 10004011154
• NII論文ID: 30026902240
• NII書誌ID: AN00069773
• DOI: 10.2464/jilm.48.294
• COI: 1:CAS:528:DyaK1cXkt1Wlu78%3D
• ISSN: 18808018
• ISSN: 04515994
• ISSN: http://id.crossref.org/issn/04515994
• NDL書誌ID: 4512225
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4512225
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可