Dynamic Observation of Solidification and Solidification Cracking during Welding with Optical Microscope (I) : Solidification Front and Behavior of Cracking(Materials, Metallurgy & Weldability)

• MATSUDA F.

  Osaka University

• NAKAGAWA Hiroji

  Osaka University

• SORADA Kazuhiko

  Osaka Univ. (Present office)Sumitomo Heavy Industries, LTD.

抄録

Dynamic behaviors of solidification front and solidification cracking during welding of different steels have been observed with high speed cinecamera mounted on optical microscope. The dynamic observation of the solidification front has revealed very narrow apparent solidification temperature range compared with true solidification temperature range. The dynamic observation of the solidification cracking in rapid tensile test has revealed that crack initiation occurs at high temperature part in true solidification temperature range and that the crack propagates toward both higher and lower temperature regions. These observations have been well explained from the viewpoint of solidification theory. Moreover, a new concept of solidification cracking has been proposed on the basis of these observations.

収録刊行物

• Trans. JWRI.

  Trans. JWRI. 11 67-, 1982

  大阪大学

キーワード

• Solidification
• Hot Cracking
• Carbon Steels
• Stainless Steels
• Nickel Alloys

詳細情報

• CRID: 1573668927069492480
• NII論文ID: 110006484339
• NII書誌ID: AA00867058
• ISSN: 03874508
• 本文言語コード: en
• データソース種別:
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