Orientation dependence of stored energy of cold work in 50% cold rolled copper

The orientation and strain dependence of dislocation structure evolution in monotonically deformed polycrystalline copper

“…However, in their study only three orientations <001> <111> and <110> orientations were investigated and the only moderate plastic deformation states rather than a wide range of plastic deformation states were mapped (5%, 10% and 15% strain under compression). Similar findings have also been reported using X-ray line broadening (Kallend and Huang, 1984) .…”

Development of Grain Interior Strain Localizations during Plane Strain Deformation of a Deep Drawing Quality Sheet Steel.

“…2,3,7) It seems, however, that both schools of opinion now consider presence of grain interior strain localizations as a 'requirement' for either of the mechanism(s). 2,12) Bulk measurement techniques, 9,25,26) like X-ray and neutron diffraction, had repeatedly shown that Taylor factors, grossly representing orientation against a particular strain tensor as a single scalar quantity, 8) can be used as an index of stored energy in a polycrystalline material. Local orientation measurements had also shown 2,7,8,10,20,24,27) that deformed structure of individual grains and their relative stored energies usually depend on orientation and a generalized trend in Taylor factors.…”

Stored Energy and Taylor Factor Relation in an Al-Mg-Mn Alloy Sheet Worked by Continuous Cyclic Bending

“…Several attempts have been made to evaluate the stored energy by calorimetric 2,3) and diffraction techniques. [4][5][6][7][8][9] The latter technique is divided into two types. One is the basic method [4][5][6] in which X-ray line broadening is measured to obtain the stored energy in grains having specific orientations, for example (100) plane parallel to the rolling plane in the sample.…”

“…One is the basic method [4][5][6] in which X-ray line broadening is measured to obtain the stored energy in grains having specific orientations, for example (100) plane parallel to the rolling plane in the sample. Another is the extended method [7][8][9][10] which was used to determine the stored energy for a much wider space described by the orientation distribution function. Using the extended method, Kallend and Huang, Gerber et al, 7,10) Rajmohan et al 8) and Rajmohan and Szpunar 9) carried out the measurement of the stored energy in copper, interstitial free steel and can body aluminum alloy after rolling.…”

“…Another is the extended method [7][8][9][10] which was used to determine the stored energy for a much wider space described by the orientation distribution function. Using the extended method, Kallend and Huang, Gerber et al, 7,10) Rajmohan et al 8) and Rajmohan and Szpunar 9) carried out the measurement of the stored energy in copper, interstitial free steel and can body aluminum alloy after rolling. They also investigated the relation between the stored energy and the Taylor factor 11) which shows the total slip system activity expected during the deformation of a grain of specific orientation.…”