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 effect of crystal orientation on the recovery and recrystallization of cold-rolled Ni(99.96% purity) has been investigated. Particular attention was paid to the annealing response ofregions with either the Copper (C), Brass (B) or S rolling texture orientations. Samples with aninitial average grain size of approx. 500μm were deformed to strains of up to εvM = 4.5. As a resultof the large initial grain size, even after high rolling reductions it is possible to find sufficiently largeregions of material with similar crystal orientation to analyze the recovery and recrystallizationbehaviour as a function of crystal orientation. Microstructural investigations were carried out in thescanning electron microscope using both electron channeling contrast and electron backscatterdiffraction orientation mapping. Both the S and C orientation regions exhibit a heterogeneousmicrostructure containing bands of localized deformation. The presence of volumes surrounded byhigh angle boundaries in these regions strongly influences both the recovery and recrystallizationbehaviour of the material. Twinning was observed also to play an important role in the generation ofrecrystallized grains, with twin chains of up to 3 generations being observed
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/17/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.558-559.149.pdf
