We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Acoustic emission study of corrosion fatigue crack propagation mechanism for LY12CZ and 7075-T6 aluminum alloys.
- Authors
Chang, H.; Han, E.; Wang, J. Q.; Ke, W.
- Abstract
Acoustic emission signals were continuously monitored during fatigue crack propagation for LY12CZ and 7075-T6 aluminum alloys in laboratory air and 3.5% NaCl solution. The results showed that the acoustic emission count rate was as a linear function of crack propagation rate during fatigue and corrosion fatigue. The acoustic emission activity for LY12CZ was smaller in solution than that in air; but for 7075-T6, greater in solution than that in air. 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 of LY12CZ and hydrogen embrittlement of 7075-T6.
- Subjects
ALUMINUM alloys; CORROSION &; anti-corrosives; CRACKING process (Petroleum industry); ACOUSTIC emission; CORROSION fatigue of metals; MECHANICAL wear
- Publication
Journal of Materials Science, 2005, Vol 40, Issue 21, p5669
- ISSN
0022-2461
- Publication type
Article
- DOI
10.1007/s10853-005-1300-9