In-situ and real-time tests on the damage evolution and fracture of thermal barrier coatings under tension: A coupled acoustic emission and digital image correlation method

被引：42
作者：
Zhou, M. [1 ,2 ]
Yao, W. B. [1 ,2 ]
Yang, X. S. [1 ,2 ]
Peng, Z. B. [1 ,2 ]
Li, K. K. [1 ,2 ]
Dai, C. Y. [1 ,2 ]
Mao, W. G. [1 ,2 ,3 ]
Zhou, Y. C. [1 ,2 ]
Lu, C. [4 ]
机构：
[1] Xiangtan Univ, Fac Mat Optoelect & Phys, Xiangtan 411105, Hunan, Peoples R China
[2] Xiangtan Univ, Minist Educ, Key Lab Low Dimens Mat & Applicat Technol, Xiangtan 411105, Hunan, Peoples R China
[3] Nanchang Hangkong Univ, Aeronaut Sci & Technol Key Lab Aeronaut Test & Ev, Nanchang 330063, Jiangxi, Peoples R China
[4] Curtin Univ, Dept Mech Engn, Perth, WA 6845, Australia
来源：
SURFACE & COATINGS TECHNOLOGY | 2014年 / 240卷
基金：
中国国家自然科学基金;
关键词：
Thermal barrier coating; Damage evolution; Acoustic emission; Digital image correlation; AE-b value; STRAIN EVOLUTION; STRESS; DELAMINATION; BEHAVIOR; FAILURE; RUPTURE; LAYER;
D O I：
10.1016/j.surfcoat.2013.12.010
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
By using a coupled acoustic emission (AE) and digital image correlation (DIC) technique, the failure behavior of air plasma sprayed thermal barrier coatings (TBCs) was investigated. The in-situ DIC observations show that the characteristics of AE signals, extracted from the fast Fourier transform, are closely related to the failure modes of a TBC system, which was applied to real-time reveal its damage evolution during tension. It is shown that there is a typical power-law relationship between the vertical crack density in coating and strain in substrate. A damage variable defined as a function of the cumulative AE events can be used to characterize the different fracture stages of a TBC system. With the increase of strain in substrate, the AE-b value estimated by the Gutenberg-Richter law varies from 2.0 at the initial regime to a plateau value of 12. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：40 / 47
页数：8
相关论文
共 40 条
[1]   A study of the mechanical properties of highly porous ceramics using acoustic emission [J].
Aué, J ;
De Hosson, JTM .
JOURNAL OF MATERIALS SCIENCE, 1998, 33 (22) :5455-5462
[2]   In situ x-ray investigation of freestanding nanoscale Cu-Nb multilayers under tensile load [J].
Aydiner, C. C. ;
Brown, D. W. ;
Mara, N. A. ;
Almer, J. ;
Misra, A. .
APPLIED PHYSICS LETTERS, 2009, 94 (03)
[3]   Residual stress-driven delamination in deposited multi-layers [J].
Beuth, JL ;
Narayan, SH .
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 1996, 33 (01) :65-78
[4]   Effect of crystalline metallic particles on the compressive behavior of a cellular amorphous metal [J].
Brothers, Alan H. ;
Mangrich, Benjamin ;
Cox, Marie ;
Dunand, David C. .
SCRIPTA MATERIALIA, 2011, 64 (11) :1031-1034
[5]   Effect of Young's modulus evolution on residual stress measurement of thermal barrier coatings by X-ray diffraction [J].
Chen, Q. ;
Mao, W. G. ;
Zhou, Y. C. ;
Lu, C. .
APPLIED SURFACE SCIENCE, 2010, 256 (23) :7311-7315
[6]   APPLICATIONS OF DIGITAL-IMAGE-CORRELATION TECHNIQUES TO EXPERIMENTAL MECHANICS [J].
CHU, TC ;
RANSON, WF ;
SUTTON, MA ;
PETERS, WH .
EXPERIMENTAL MECHANICS, 1985, 25 (03) :232-244
[7]   A method for in situ measurement of the elastic behavior of a columnar thermal barrier coating [J].
Eberl, C. ;
Gianola, D. S. ;
Wang, X. ;
He, M. Y. ;
Evans, A. G. ;
Hemker, K. J. .
ACTA MATERIALIA, 2011, 59 (09) :3612-3620
[8]   Full-field strain evolution during intermartensitic transformations in single-crystal NiFeGa [J].
Efstathiou, C. ;
Sehitoglu, H. ;
Carroll, J. ;
Lambros, J. ;
Maier, H. J. .
ACTA MATERIALIA, 2008, 56 (15) :3791-3799
[9]   Effects of tensile and compressive in-plane stress fields on adhesion in laser induced delamination experiments [J].
Fedorov, A. ;
Vellinga, W. P. ;
De Hosson, J. Th. M. .
JOURNAL OF APPLIED PHYSICS, 2008, 103 (10)
[10]  
Gutenberg B., 1942, Bull Seismol Soc Am, V32, P163, DOI [10.1785/BSSA0320030163, DOI 10.1785/BSSA0320030163]
1234