ISSN:
1662-9752
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 strain scanning method was applied to the evaluation of the subsurface distribution ofthe residual stress beneath the shot-peened surface of an austenitic stainless steel SUS304L which hadcoarse grains and preferred orientation. The experiment was performed at beam line BL22XU atSPring-8 using monochromatic X-rays of 70.14 keV and a Ge (111) analyzer. The sizes of bothincident and receiving slits were 2 × 0.2 mm2. The specimens were annealed or shot-peened and hadthe dimensions of 20 × 20 × 5 mm3. The grain size was about 37 μm. In order to obtain the diffractionsfrom an enough number of grains, various types of oscillation methods, which were translation,rotation and tilting of the specimen, were examined. The translational oscillation was found to beenough to obtain the accurate strain distribution. By combining the translational oscillation methodwith the correction to the surface aberration, the subsurface distribution of the residual stress ofshot-peened austenitic stainless steel was successfully determined
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/13/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.524-525.691.pdf
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