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

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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.