Effects of Small Defects on Fatigue Properties of Materials, Mechanism of Ultralong Life Fatigue and Applications to Fatigue Design of Car Components Department of Mechanical Engineering Science, Kyushu University

Format:

Conference/Event

Author/Creator:

Murakami, Yukitaka, author.

Conference Name:

SAE 2002 World Congress & Exhibition (2002-03-04 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2002

Summary:

Effects of small defects, nonmetallic inclusions, and hydrogen trapped by inclusions on fatigue strength are overviewed. by the authors' group and Japanese industries are introduced. Other related problems such as the quality control of materials from viewpoint of the inclusion or defect rating by statistics of extreme and the effect of small defects on fatigue lives are also discussed. Finally, the mechanism of ultralong life fatigue in the regime of N > 107 is discussed based on the particular morphology in the vicinity of the inclusion at fracture origin and it will be concluded that the hydrogen trapped by inclusions is a crucial factor which causes the elimination of conventional fatigue limit defined by N = 107 and the ultralong life fatigue failure of high strength steels at N > 107

Notes:

Vendor supplied data

Publisher Number:

2002-01-0575

Access Restriction:

Restricted for use by site license