Abstract
Dynamic strain aging characteristics have been observed in MgO single crystals when deformed above 600°C. Serrated flow has been identified, which has been shown to depend on the deformation rate and temperature. The extent of aging has been found to be directly proportional to the time of aging at a given strain and temperature; t 2 3 law which has been found to be applicable in b.c.c. iron and C-doped Ni is not observed in MgO. Secondary load drops are observed under certain conditions during strain rate change experiments. Dynamic strain aging in MgO seems to be due to Cottrell type impurity atmospheres formed around dislocation lines, but the identity of the impurity responsible for this behavior is not yet known.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
