TY - JOUR
T1 - Electromagnetic induced infrared thermography for fast detection of interfacial debonding in coating-metal multilayer structure
AU - Li, Jialun
AU - Jia, Chenyu
AU - Liu, Hengkun
AU - Li, Xiaoguang
AU - Xu, Ning
AU - Li, Ji
AU - Li, Yue
AU - Chen, Hong En
AU - Chen, Zhenmao
AU - Tong, Zongfei
AU - Xie, Shejuan
N1 - Publisher Copyright:
© 2026 Elsevier Ltd
PY - 2026/5
Y1 - 2026/5
N2 - Coating-metal multilayer structure extends service life of metal-based components by attaching a functional coating to metal surface. Coatings protect the metal from external damage such as thermal, wear, corrosion and so on. This multilayer structure is widely used in industrial applications. One of the most common forms of failure is interfacial debonding between coating and metal substrate. Interfacial debonding defects reduce the bonding force between layers, which leads to coating failure and even safety risks. In order to better realize the integrity evaluation of coating-metal multilayer structure, in this paper, an electromagnetic induced thermography is proposed to enable fast detection of small interfacial debonding defects. The thermal barrier coating system (TBCs) is selected as typical coating-metal multilayer structures. Using eddy current heating as an internal heat source and introduced magnet yoke to confine heating area, the detection of Φ1 mm interfacial debonding defects is firstly achieved in 0.8 s. Furthermore, this method is employed to detect the interfacial debonding between glass fiber reinforced plastics (GFRP) and alloy substrate, thereby reinforcing its viability. Comparing to external heating source, electromagnetic induced thermography shows great advantages in accurate and efficient detection, which is a great inspiration for integrity evaluation of coating-metal multilayer structure.
AB - Coating-metal multilayer structure extends service life of metal-based components by attaching a functional coating to metal surface. Coatings protect the metal from external damage such as thermal, wear, corrosion and so on. This multilayer structure is widely used in industrial applications. One of the most common forms of failure is interfacial debonding between coating and metal substrate. Interfacial debonding defects reduce the bonding force between layers, which leads to coating failure and even safety risks. In order to better realize the integrity evaluation of coating-metal multilayer structure, in this paper, an electromagnetic induced thermography is proposed to enable fast detection of small interfacial debonding defects. The thermal barrier coating system (TBCs) is selected as typical coating-metal multilayer structures. Using eddy current heating as an internal heat source and introduced magnet yoke to confine heating area, the detection of Φ1 mm interfacial debonding defects is firstly achieved in 0.8 s. Furthermore, this method is employed to detect the interfacial debonding between glass fiber reinforced plastics (GFRP) and alloy substrate, thereby reinforcing its viability. Comparing to external heating source, electromagnetic induced thermography shows great advantages in accurate and efficient detection, which is a great inspiration for integrity evaluation of coating-metal multilayer structure.
KW - Coating-metal multilayer structure
KW - Comparative results
KW - Electromagnetic induced thermography
KW - External heatingthermography
KW - Interfacial debonding
UR - https://www.scopus.com/pages/publications/105036116889
U2 - 10.1016/j.compstruct.2026.120357
DO - 10.1016/j.compstruct.2026.120357
M3 - 文章
AN - SCOPUS:105036116889
SN - 0263-8223
VL - 388
JO - Composite Structures
JF - Composite Structures
M1 - 120357
ER -