ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The effect of stress concentration factor on the fatigue properties of typical austeniticstainless steel SUS304 have been investigated using the circumferentially notched specimens. Thenotch of specimens has six kinds of radii, i.e. ρ = ∞ (i.e. plain specimen), 2.0, 1.0, 0.6, 0.3, and 0.1 mmwith constant notch depth (t=0.2mm). Though the fatigue cracks in the specimens with a blunt notchinitiate at one point, those in the specimens with a sharp notch initiate at several points. There existthe slip bands in the surface of the specimen under the stress amplitude of fatigue limit by 1×107cycles, and do not exist the non-propagating micro-cracks in all kinds of the specimens. Furthermore,it has been found that notch sensitivity of austenitic stainless steels is higher than that of a typicalplain carbon steels under the higher stress concentration factor region
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.353-358.243.pdf
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