Inclined defects and their effect on the fatigue limit and small crack growth

Small FIB (Focused Ion Beam) milled notches were introduced in quenched and tempered 34CrNiMo6 steel to monitor initiation and growth of cracks in situ. The effect of the defects on the fatigue limit is discussed in terms of the √area model. Notches with projected √area of 30 to 56 μm normal to the...

Full description

Bibliographic Details
Main Authors: Roiko Andrew, Solin Jussi, Murakami Yukitaka
Format: Article
Language:English
Published: EDP Sciences 2014-06-01
Series:MATEC Web of Conferences
Online Access:http://dx.doi.org/10.1051/matecconf/20141207002
Description
Summary:Small FIB (Focused Ion Beam) milled notches were introduced in quenched and tempered 34CrNiMo6 steel to monitor initiation and growth of cracks in situ. The effect of the defects on the fatigue limit is discussed in terms of the √area model. Notches with projected √area of 30 to 56 μm normal to the applied stress were inclined by 0, 45, and 60 degrees. The effect of size and inclination on the small crack growth as well as the fatigue limit is discussed.
ISSN:2261-236X