拡散接合したモリブデン単結晶の引張強さに及ぼすねじり角の影響

• 大橋 修

  金属材料技術研究所

• 菅 誠一郎

  金属材料技術研究所 (現)大阪大学工学部

書誌事項

タイトル別名

• Effect of Twist Angle on Tensile Strength of Diffusion-Welded Joints in Molybdenum Single Crystal (Discussion at the National Meeting of Autumn 1991)

抄録

The purpose of this study is to investigate the effect of twist angle on tensile strength of diffusion-welded joints by using molybdenum single crystals with (121) and (025) surfaces. Relation between the twist angle and strength is tried to explain with the coincidence site lattice model and a theoretical model calculation. The results are as follows : Single crystals could be welded without recrystallization. Tensile strength of the joints depended on the twist angles. The joints with twist angles up to 10 degree were as strong as the base metal. In case of the twist angles above 10 degree, there were peaks in tensile strength of the joints around the certain twist angles where a number of common lattice points were formed at welding interface. From the calculation, it was shown that the binding energy between the crystals decreased with decreasing the number of common lattice points. Twist angle widths of peaks in tensile strength were estimated with the Brandon's equation.

収録刊行物

• 溶接学会論文集

  溶接学会論文集 10 53-58, 1992

  社団法人溶接学会

キーワード

• diffusion welding
• molybdenum
• grain boundary
• welding interface
• bicrystals
• twist angle
• misorientation

詳細情報

• CRID: 1571135652369138688
• NII論文ID: 110003423115
• NII書誌ID: AN1005067X
• ISSN: 02884771
• 本文言語コード: ja
• データソース種別:
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