@article{9b8d736bba56492fb140fa8edc82a704,
title = "Direct observation of three-dimensional short fatigue crack closure behavior in Ti-6Al-4V alloy using ultra-high-resolution X-ray microtomography",
abstract = "Local 3D short fatigue crack closure behavior was investigated in Ti-6Al-4V alloy using ultra-high-resolution X-ray microtomography (XMT). The results show that the inhomogeneous distribution of plasticity-induced and roughness-induced crack closure is caused by the variation of crack path morphologies. These crack path morphologies exhibited heterogeneous plastic deformation at the crack-tips due to the anisotropic nature of α grains and varying extents of crack tilting and twisting caused by the interaction of the crack front with α/α boundary or α/α + β interface. It was revealed via surrogate-based statistical analysis that the Schmid factor has the strongest effect on crack growth rate.",
author = "Valary Tubei and Hiroyuki Toda and Worapol Ketanond and Hiro Fujihara and Osamu Takakuwa and Akihisa Takeuchi and Masayuki Uesugi",
note = "Funding Information: The synchrotron radiation experiments were performed at SPring-8 with the approval of JASRI through proposal number 2021A1574. This work was supported through the JSPS Grant-in-aid for Scientific Research, KAKENHI, grant numbers JP21H04624 and JP21H04529, and by JST, CREST Grant Number JPMJCR1995, Japan. One of the authors (Tubei V.) is also grateful for the JSPS Grant-in-aid for Scientific Research, subject number HAG1J12176. The authors would also like to thank Professor Kazuyuki Shimizu from Iwate University who was very instrumental in X-ray tomography data acquisition in SPring-8. Funding Information: The synchrotron radiation experiments were performed at SPring-8 with the approval of JASRI through proposal number 2021A1574. This work was supported through the JSPS Grant-in-aid for Scientific Research, KAKENHI, grant numbers JP21H04624 and JP21H04529, and by JST, CREST Grant Number JPMJCR1995, Japan. One of the authors (Tubei V.) is also grateful for the JSPS Grant-in-aid for Scientific Research, subject number HAG1J12176. The authors would also like to thank Professor Kazuyuki Shimizu from Iwate University who was very instrumental in X-ray tomography data acquisition in SPring-8. Publisher Copyright: {\textcopyright} 2022 The Authors",
year = "2023",
month = mar,
doi = "10.1016/j.ijfatigue.2022.107428",
language = "English",
volume = "168",
journal = "International Journal of Fatigue",
issn = "0142-1123",
publisher = "Elsevier Limited",
}