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 local elastic and plastic strain during deformation are very complicated and differentform the macroscopic strain, because most materials have inhomogeneous microstructure. In thisstudy, local strain distribution in three dimensions has been measured using the new developedmethod based on image analysis in high-resolution synchrotron radiation computed tomography(SR-CT). Model and practical specimens, which made of cupper alloy and aluminum alloy,respectively, were prepared for a development procedure and application of local strainmeasurements. Gauging intervals of microstructural features before and after deformation gave usinformation of inhomogeneous local strain distribution in three dimensions. High strain was observedin a necking region appeared after tensile deformation in the model sample. A combination ofnon-destructive measurements by SR-CT and three-dimensional analysis revealed inhomogeneousstrain distributions in practical aluminum samples
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/54/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.345-346.1153.pdf