著者
SUZUKI Hideji
出版者
東北大学
雑誌
Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy (ISSN:00408808)
巻号頁・発行日
vol.4, pp.455-463, 1952
被引用文献数
5

A mechanism of interaction between a dislocation and solute atoms was discussed. It was shown to be reasonable to account for the difference in mechanical behaviours between face-centred and body-centred cubic crystals from the different locking mechanisms between these two types of crystals, the former being locked by a weaker but wider interaction range. while the latter being captured in a stronger and narrower valley of potential energy, the so-called Cottrell's atomosphere. The former results in a low critical shear stress which is almost independent of temperature and rate of strain. The latter gives rise to a very high critical shear stress at low temperatures, which, however, rapidly decreases with the rise of temperature.