Effects of inert gases on fatigue crack growth and their transportation into subsurface regions in titanium

Journal Article · Mon May 01 00:00:00 EDT 2000 · Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science

DOI:https://doi.org/10.1007/s11661-000-0261-5· OSTI ID:20075685

Shimojo, M; Higo, Y; Oya-Seimiya, Y

To clarify the effects of inert gases on the fatigue behavior of titanium, fatigue crack growth tests were carried out in pure inert gases and in vacuum. Fatigue crack growth rates increased, and the fracture surface appearance was changed in inert gases, as compared to those in vacuum. The transportation of inert gases into subsurface regions of fracture surfaces was confirmed using Auger electron spectroscopy. This transportation is considered to be due to the reverse slip of slip planes on which inert gas atoms have adsorbed.

• Research Organization: Tokyo Inst. of Tech., Yokohama (JP)
• OSTI ID: 20075685
• Journal Information: Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science, Vol. 31, Issue 5; Other Information: PBD: May 2000; ISSN 1073-5623
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
FATIGUE
FRACTURE PROPERTIES
TITANIUM
CRACK PROPAGATION
INERT ATMOSPHERE
ATOM TRANSPORT
SLIP
AUGER ELECTRON SPECTROSCOPY