SUS配管溶接部における柱状晶組織からのUT信号シミュレーション
英字タイトル:
Simulation of UT signal for columnar structure of weld metal of stainless steel piping
著者:
直本 保 Tamotsu JIKIMOTO 上山 芳教 Yoshinori KAMIYAMA 古川 敬 Takashi FURUKAWA
発刊日:
公開日:
columnar structureultrasonic testingUT simulation
Simulation of UT signal for columnar structure of weld metal of stainless steel piping
著者:
直本 保 Tamotsu JIKIMOTO 上山 芳教 Yoshinori KAMIYAMA 古川 敬 Takashi FURUKAWA
発刊日:
公開日:
カテゴリ: 第14回
キーワードタグ:columnar structureultrasonic testingUT simulation
概要
In the ultrasonic testing (UT) for weld part of austenitic stainless, it is generally recognized that the UT inspection has difficulty due to dispersion, attenuation, and so on. And, in UT results even for defect-free area of austenitic weld metal, echoes originated from root, columnar structure and interface between weld metal and base metal are observed with some continual variation throughout weld line. UT simulation is a very useful technique for understanding the phenomena in the ultrasonic wave propagation and for evaluating the results of UT examination. In this study, we discuss the composing method by UT simulation for 3-dimensional continuous variation of UT signals from weld part of austenitic metal.
