Acoustic emission study of corrosion fatigue crack propagation mechanism for LY12CZ and 7075-T6 aluminum alloys

2005 ◽  
Vol 40 (21) ◽  
pp. 5669-5674 ◽  
Author(s):  
H. Chang ◽  
E. Han ◽  
J. Q. Wang ◽  
W. Ke
2014 ◽  
Vol 628 ◽  
pp. 20-23
Author(s):  
Hong Chang

Acoustic emission signals were continuously monitored during corrosion fatigue crack propagation for X52 steel in 3.5% NaCl and AZ31 magnesium alloy in 0.1%NaCl solution. There are different microstructure and corrosion fatigue crack propagation mechanism for X52 steel and AZ31B magnesium alloy. Combined with the existing research results of LY12CZ and 7075-T6 aluminum alloys, the acoustic emission waveform parameter, the frequency centroid ratio, was tried to use as a criterion to distinguish the corrosion fatigue crack propagation mechanism for anodic dissolution and hydrogen embrittlement. The results also show that the nature of the acoustic emission source determines the main characteristics of the signal parameters and waveforms, and little to do with the experimental material.


2014 ◽  
Vol 597 ◽  
pp. 270-278 ◽  
Author(s):  
Zhiyuan Han ◽  
Hongyun Luo ◽  
Chuankai Sun ◽  
Junrong Li ◽  
Mayorkinos Papaelias ◽  
...  

2018 ◽  
Vol 13 ◽  
pp. 1026-1031 ◽  
Author(s):  
Shigeru Hamada ◽  
Taro Suemasu ◽  
Motomichi Koyama ◽  
Masaharu Ueda ◽  
Hiroshi Noguchi

2018 ◽  
Vol 2018 (0) ◽  
pp. OS0831
Author(s):  
Shigeru HAMADA ◽  
Taro SUEMASU ◽  
Motomichi KOYAMA ◽  
Masaharu UEDA ◽  
Hiroshi NOGUCHI

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