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首页> 外文期刊>Materials transactions >Detection of Fatigue Cracks at Weld Toes by Crack Detection Paint and Surface SH Wave
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Detection of Fatigue Cracks at Weld Toes by Crack Detection Paint and Surface SH Wave

机译：用裂纹检测漆和表面SH波检测焊趾疲劳裂纹。

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摘要

A crack detection (CD) paint was applied to weld lines of a transverse rib welded joint specimen of a rolled steel for welded structures, and the effects of the paint on visual detection of fatigue cracks were evaluated by performing a fatigue test. Remarkable color development was observed in the CD paint when fatigue cracks propagated along the weld toe lines. At intervals in the fatigue test, surface SH (Secondary Horizontal) wave tests were also carried out in order to confirm the existence of fatigue cracks, and the test results were compared with the color development in the CD paint.
机译：将裂纹检测（CD）涂料应用于焊接结构用轧制钢的横向肋骨焊接接头试样的熔合线，并通过进行疲劳试验来评估该涂料对疲劳裂纹的肉眼检测的效果。当疲劳裂纹沿焊趾线传播时，在CD涂料中观察到显着的显色现象。在疲劳试验的间隔中，还进行了表面SH（二次水平）波试验，以确定疲劳裂纹的存在，并将试验结果与CD涂料中的显色性进行比较。

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