電子ビーム溶接における局所的な凝固の遅れの形成因子-電子ビーム溶接現象に関する研究(第2報)-

• 入江

  金属材料技術研究所

• 入江 宏定

  金属材料技術研究所

書誌事項

タイトル別名

• Formation Mechanism of Locally Delayed Solidification Pattern in Electron Beam Welding : A Study on Electron Beam Welding Phenomena (Report 2)

抄録

In deep penetration electron beam welds, some characteristic defects such as porosity and solidification crack have been occurred depending on the occurrence of the locally delayed solidification pattern. In this report, some dominant factors affected on the delayed solidification have been investigated. The results obtained were as follows.(1) The delayed solidification was resulted from remelting or secondary melting effect of the solidified wall by the stagnated molten metal in a beam cavity.(2) The amount of the stagnated molten metal depended on how easily the molten metal flowed out of the beam cavity.(3) Strong evaporation near the root promoted the smooth flow of molten metal, reslting in suppressing the delayed solidification.(4) Gases involved in the base metal and evaporation from the front wall of the cavity perturbed the molten metal flow, resulting in promoting the delayed solidification.

収録刊行物

• 溶接学会論文集

  溶接学会論文集 8 (2), 15-21, 1990

  社団法人溶接学会

キーワード

• Electron Beam Welding
• Welding Phenomena
• Welding Defect
• Porosity
• Solidification Crack
• Molten Metal Flow
• Solidification Pattern

詳細情報

• CRID: 1573105977207050112
• NII論文ID: 110003423607
• 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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