Analyses of heterogeneous deformation and subsurface fatigue crack generation in alpha titanium alloy at low temperature

Journal Article · Mon Jan 27 00:00:00 EST 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4860601· OSTI ID:22264049

Umezawa, Osamu ^[1]; Morita, Motoaki ^[2]; Yuasa, Takayuki ^[3]; Morooka, Satoshi ^[4]; Ono, Yoshinori; Yuri, Tetsumi; Ogata, Toshio ^[5]

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1. Department of Mechanical Engineering and Materials Science, Yokohama National University 79-5 Tokiwadai, Hodogaya, Yokohama, 240-8501 (Japan)
2. Department of Mechanical Engineering and Materials Science, Yokohama National University 79-5 Tokiwadai, Hodogaya, Yokohama, 240-8501, Japan and Now Tokyo University of Marine Science and Technology, Koto-ku, Tokyo 135-8533 (Japan)
3. Department of Mechanical Engineering and Materials Science, Yokohama National University 79-5 Tokiwadai, Hodogaya, Yokohama, 240-8501, Japan and Now Nippon Steel and Sumitomo Metal, Kashima, 314-0014 (Japan)
4. Department of Mechanical Engineering and Materials Science, Yokohama National University 79-5 Tokiwadai, Hodogaya, Yokohama, 240-8501, Japan and Now Tokyo Metropolitan University, Hino, Tokyo 191-0065 (Japan)
5. National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, 305-0047 (Japan)

Subsurface crack initiation in high-cycle fatigue has been detected as (0001) transgranular facet in titanium alloys at low temperature. The discussion on the subsurface crack generation was reviewed. Analyses by neutron diffraction and full constraints model under tension mode as well as crystallographic identification of the facet were focused. The accumulated tensile stress along <0001> may be responsible to initial microcracking on (0001) and the crack opening.

• OSTI ID: 22264049
• Journal Information: AIP Conference Proceedings, Vol. 1574, Issue 1; Conference: International cryogenic materials conference, Anchorage, AK (United States), 17-21 Jun 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CRACK PROPAGATION
CRYSTALLOGRAPHY
DEFORMATION
FATIGUE
NEUTRON DIFFRACTION
STRESSES
TITANIUM ALLOYS