Abstract
Abstract Experimental results obtained by studying the low temperature creep behaviour before and after a small stress change are interpreted in terms of barriers due to intersecting dislocations. Using the data available on the temperature dependence of the flow stress in conjunction with these experimental results, estimates of jog energies are derived and compared with values obtained from flow stress data alone. Relative dislocation widths for various metals are also deduced. From the theoretical analysis relating dislocation width to stacking fault energy, tentative values are suggested for the stacking fault energies of Au, Ag, Al, Ni, Pb, Zn, Cd, Co and Pt, relative to that of Cu. These values are in reasonable agreement with previous estimates where available, thus confirming the hypothesis that low temperature creep is controlled by the proposed mechanism. The significance of these results is discussed in terms of the exhaustion and work hardening theories of low temperature creep. It is shown th...
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.