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:
By using techniques of severe plastic deformation a metallic material can be subjected toan enormous strain that is not achievable by conventional methods of deformation. In this studynickel single crystals with different crystallographic orientation and nickel polycrystals weredeformed by high pressure torsion. All nickel samples were processed up to the evolution of asaturation microstructure where no further hardening of the material can be observed. In this regionall samples develop a similar microstructure and micro-texture. The differences in the fragmentationof the microstructure and the micro-texture development between the single crystals and thepolycrystalline aggregate were examined using EBSD. A major difference between single crystalsand polycrystals was not only the microstructure evolution at low equivalent strains, but also thedevelopment of a stable micro-texture, which is achieved earlier by the use of a polycrystallineaggregate
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/16/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.550.277.pdf
