@article{0f537988ecf748ebbbb294a0b995c75f,
title = "In-situ measurement of Ti-6Al-4V grain size distribution using laser-ultrasonic technique",
abstract = "A laser-ultrasonic system was established combining an 8 ns width pulsed laser for ultrasound generation and a two-wave mixing (TWM) interferometer for detection. Several Ti-6Al-4V samples were heat treated variously to get different grain sizes. Longitudinal wave back wall echoes were used to calculate the frequency dependent attenuation of ultrasound after the signals were denoised using wavelet transform. A model was built to calculate the log-normal distribution of grain size based on the correlation between the frequency dependent attenuation and the volumetric grain size distribution derived from electron backscattering diffraction data (EBSD) using Schwartz–Saltykov method.",
keywords = "Electron backscattering diffraction, Grain size distribution, Nondestructive testing, Thermally stimulated acoustic methods, Titanium alloys",
author = "Feng Dong and Xiaochen Wang and Quan Yang and Huaqiang Liu and Dong Xu and Youzhao Sun and Yanjie Zhang and Renjie Xue and Sridhar Krishnaswamy",
note = "Funding Information: The work was supported by Beijing Natural Science Foundation [grant number 3182026 ]; National Natural Science Foundation of China [grant number 51604024 ]; The Tribology Science Fund of State Key Laboratory of Tribology [grant number SKLTKF16B11 ]; and Fundamental Research Funds for the Central Universities [grant number FRF-TP-17-002A2 ]. The laser ultrasonic experiments were performed at the Center for Smart Structures and Materials at Northwestern University , and the microstructure characterization was done at NUANCE at Northwestern University. Funding Information: The work was supported by Beijing Natural Science Foundation [grant number 3182026]; National Natural Science Foundation of China [grant number 51604024]; The Tribology Science Fund of State Key Laboratory of Tribology [grant number SKLTKF16B11]; and Fundamental Research Funds for the Central Universities [grant number FRF-TP-17-002A2]. The laser ultrasonic experiments were performed at the Center for Smart Structures and Materials at Northwestern University, and the microstructure characterization was done at NUANCE at Northwestern University.",
year = "2018",
month = sep,
doi = "10.1016/j.scriptamat.2018.05.009",
language = "English (US)",
volume = "154",
pages = "40--44",
journal = "Scripta Materialia",
issn = "1359-6462",
publisher = "Elsevier Limited",
}