熔接々手の脆性破壊(第1報)

• 大谷 碧

  鉄道技術研究所

書誌事項

タイトル別名

• Brittle Fracture of Welded Joint (Report 1)
• Effects of Base and Deposited Metals
• 母材および熔着鋼の影響

抄録

Tensile tests were made on welded butt joints with internal defects produced at the root face, left unwelded, of double V grooved joints (Fig. 2). The load was applied perpendicularly to the weld. The sharp transition phenomena reappeard in the presence of such natural defects.<BR>Five charges of structural mild steels, 23 mm thick, and three electrodes with different transition temperatures were used for the test. The dimensions of the root face (G) and reinforcement of weld (δ) were kept constant (G=6 mm, δ=2 mm) and effects of the notch sensitivities of base and deposited metals on the transition temperatures of welded joints were investigated. Of the two transition phenomena, ductility and fracture, only the latter was observable in the temperature range tested. As the result, it was proved that the fracture transition temperature of welded joint (T_rs) could be predicted by the equation, <BR>T_rs=0.60T_rs(B)+0.45T_rs(D)-34 (°C), <BR>where T_rs(B) and T_rs(D) are the 50% shear transition temperatures of base and deposited metals by V-Charpy impact test.

収録刊行物

• 溶接学会誌

  溶接学会誌 24 (2-3), 94-100, 1955

  一般社団法人 溶接学会

キーワード

• Metals and Alloys
• Surfaces, Coatings and Films
• Mechanical Engineering
• Mechanics of Materials

詳細情報

• CRID: 1390282681477348608
• NII論文ID: 130003762602
• DOI: 10.2207/qjjws1943.24.94
• ISSN: 18837204
• ISSN: 00214787
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可