Propagation Behavior of Root Crack in Weld Metal of High Strength Steel on the Basis of AE Source Location Technique : Application of Acoustic Emission Technique for Weld Cracking (III)(Materials, Metallurgy, Weldability)
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概要
- 論文の詳細を見る
AE source location technique is applied to restraint cracking test of HY-type HT90 high strength steel with Y-groove where the root crack has a tendency to initiate and propagate in the weld metal. It is shown that AE events have a tendency to concentrate in places where the root cracks are propagating toward the surface of weld metal. This behavior is caused by anisotropy of propagation of hydrogen-induced crack in weld metal, and is quite different from that in the case where the root crack initiates and propagates in the heat-affected zone.
- 大阪大学の論文
著者
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Kihara H
Tokyo And Osaka Universities
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MATSUDA Fukuhisa
Osaka University
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NAKAGAWA Hiroji
Osaka University
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Kihara H
Nagoya Univ. Nagoya Jpn
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KIHARA Hiroshi
Tokyo and Osaka Universities
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MATSDA Fukuhisa
Osaka University
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MORIMOTO Yoshinori
Osaka Univ.
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Kihara H
Takara Shuzo Co. Ltd. Shiga Jpn
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Nakagawa Hiroji
Welding Research Inst. Osaka Univ.
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Morimoto Yoshinori
Osaka University:(present Office) Komai Iron Works Co. Ltd
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Matsuda Fukuhisa
Osaka Univ.
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