1964 年 5 巻 1 号 p. 43-46
Cold rolling behaviours of a commercial pure titanium have been studied by means of transmission electron microscopy. The results indicates: (1) In cold rolled titanium, there are a number of tangled dislocations which have often been observed in cold worked face centered cubic metals. (2) In 16.7% cold rolled Ti, imperfect structures with a high concentration of tangled dislocations were observed and a great number of uniformly distributing dislocation loops were observed. They were also observed in 50.0% rolled Ti.