Abstract
The specimens were quenched within a very short time of 0.01_??_0.04 seconds after the completion of hot working, thus preventing the recrystallization after hot working. The heating, working and cooling of the specimens during hot working were conducted auto-matically and the progress of these processes were recorded with an electro-magnetic oscillograph. The changes of strength and elongation of the specimens during hot working were also recorded. We measured at various temperatures below 600° the rate of recrystallization of cold drawn. α brass wires of various reductions and from these measured rates, we extrapolated the rate of recrystallization of the same specimens at higher temperatures such as the hot working tempe-rature of α brass. With reference to these data, we designed the experimental apparatus. These extrapolated values seem to be equal to or higher than the actually measured rate of recrystallization of a hot worked specimen of α brass at the same temperature.
