@inproceedings{910fd22d54b54e368aba6bc2b7aa9a93,
title = "Nonlinear acoustics experimental characterization of microstructure evolution in Inconel 617",
abstract = "Inconel 617 is a candidate material for the intermediate heat exchanger in a very high temperature reactor for the next generation nuclear power plant. This application will require the material to withstand fatigue-ratcheting interaction at temperatures up to 950°C. Therefore nondestructive evaluation and structural health monitoring are important capabilities. Acoustic nonlinearity (which is quantified in terms of a material parameter, the acoustic nonlinearity parameter, β) has been proven to be sensitive to microstructural changes in material. This research develops a robust experimental procedure to track the evolution of damage precursors in laboratory tested Inconel 617 specimens using ultrasonic bulk waves. The results from the acoustic non-linear tests are compared with stereoscope surface damage results. Therefore, the relationship between acoustic nonlinearity and microstructural evaluation can be clearly demonstrated for the specimens tested.",
author = "Xiaochu Yao and Yang Liu and Lissenden, {Cliff J.}",
year = "2014",
doi = "10.1063/1.4864893",
language = "English (US)",
isbn = "9780735412118",
series = "AIP Conference Proceedings",
publisher = "American Institute of Physics Inc.",
pages = "733--738",
booktitle = "40th Annual Review of Progress in Quantitative Nondestructive Evaluation - Incorporating the 10th International Conference on Barkhausen Noise and Micromagnetic Testing",
note = "40th Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2013, Incorporating the 10th International Conference on Barkhausen and Micro-Magnetics, ICBM 2013 ; Conference date: 21-07-2013 Through 26-07-2013",
}