Damage monitoring of material processs for reliable material processing

2014 Fiscal Year Final Research Report

• Project/Area Number: 23246124
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Material processing/treatments
• Research Institution: The University of Tokyo
• Principal Investigator: ENOKI MANABU 東京大学, 工学(系)研究科(研究院), 教授 (70201960)
• Co-Investigator(Renkei-kenkyūsha): ITO Kaita 東京大学, 大学院工学系研究科, 助教 (30554381)
• Project Period (FY): 2011-04-01 – 2015-03-31
• Keywords: アコースティック・エミッション / ものづくり / 非破壊検査 / 表面処理 / コーティング / ピーニング

Outline of Final Research Achievements

Acoustic emission (AE) is a powerful tool to monitor the damage and impact in materials and structures. Process control is also one of the applications of AE measurement. However, it was very difficult to detect and analyze AE signals during material processing because of severe environment. Recently new technique to record AE signals such as laser AE and continuous waveform recording have been developed to apply to material processing. AE signals were successfully detected and analyzed in surface treatment such atmospheric plasma spraying, high velocity oxy-fuel coating process and shot peening. Condition monitoring of material processing using AE will be promising to improve the reliability of materials and structures.

Free Research Field

信頼性材料工学