Analysis of Solidification Cracks in Welds of Al-Mg-Si A6351 Type Alloy Welded by High Frequency Pulsed TIG Process : The First Report - Evaluation of Solidification Crack Susceptibility by means of Houldcroft Test

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概要

• 論文の詳細を見る

• A study was carried out on solidification crack in Al-Mg-Si alloys type A6351 by means of Houldcroft test with GTAW process without filler metal and high pulsation frequency. Three test series were carried out taking into account the variation of heat input. The obtained crack lengths were measured and the effect of pulsation frequency, fraction of pulse time and welding speed were analyzed. The effect of grain structures on the susceptibility of solidification crack was evaluated as well as the welding pool geometry in which these structures developed. The "quasi-stationary" state was studied for the specimen geometry used and the process efficiencies were estimated using welding pool width method. An estimation of the necessary force to close the crack was made using ROGERSON's physical-mathematical model. The obtained results were compared with those presented in surveyed references.

• 社団法人溶接学会の論文
• 1994-08-05

著者

• Taniguchi Celio

  Dept. Naval Architecture & Ocean Engineering Polytechnic School University Of Sao Paulo

• Pereira M

  Nippon Kaiji Kyokai

• Machida Susumu

  Dept. Naval Architecture & Ocean Engineering University Of Tokyo

• Machida Susumu

  Dept. Naval Archit. & Ocean Eng. The University Of Tokyo.

• PEREIRA Marcos

  Dept. Naval Architecture & Ocean Engineering, The University of Tokyo

• BRANDI Sergio

  Dept. Metallurgical and Materials Engineering, Polytechnic School, University of Sao Paulo

• Machida Susumu

  Dept. Naval Architecture & Ocean Engineering The University Of Tokyo

• Brandi Sergio

  Dept. Metallurgical And Materials Engineering Polytechnic School University Of Sao Paulo

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• Analysis of Solidification Cracks in Welds of Al-Mg-Si A6351 Type Alloy Welded by High Frequency Pulsed TIG Process : The First Report - Evaluation of Solidification Crack Susceptibility by means of Houldcroft Test
• 12. Reliability Analysis of Fatigue Damage of Offshore Structure

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