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タイトル: 大入熱溶接継手部の破壊靭性把握とその評価に関する研究
その他のタイトル: Examination and Evaluation on Fracture Toughness of Welded Joints by High Heat-Input Welding
著者: 黒川, 常夫 / 片岡, 繁夫 / 河野, 和芳 / 大下, 昌弘
著者(別表記) : Kurokawa, Tsuneo / Kataoka, Shigeo / Kawano, Kazuyoshi / Oshita, Masahiro
発行日: 1977年 7月
出版者: 長崎大学工学部 / Faculty of Engineering, Nagasaki University
引用: 長崎大学工学部研究報告, (9), pp.25-34; 1977
抄録: Recently, high heat-input automatic welding process has been applied to welded structures. However, this high heat-input welding has an undesirable effect of adversely affecting the toughness of the weld bond at welded joints. In order to secure the safety of welded structures, therefore, the study on fracture toughness of welded joints by this welding process is one of important problems. In this experiment, the authors carried out hardness test, observation of microstructures, the Charpy V-notch impact test, COD bend test and fractrography with weld test specimens of mild and 50 kg/mm2 class high strength steels which were welded by electro-gas arc process with heat-input values of about 110 kj/cm~185 kj/cm. From the results of these tests, the mechanism of embrittlement was clarified and the characteristics of fracture toughness were evaluated on the weld bond of high heat-input welded joints.
URI: http://hdl.handle.net/10069/23886
ISSN: 02860902
資料タイプ: Departmental Bulletin Paper
原稿種類: publisher

引用URI : http://hdl.handle.net/10069/23886



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