A drastic change from the {310}⟨001⟩ component to the Goss component in the recrystallized textures between (111)[\bar1\bar12] Mo single crystals zone-refined once and three times is confirmed to be due to the presence of the second phase particles before rolling deformation by means of transmission electron microscopy. A dispersion of the fine particles is enough effective to suppress the formation of the recrystallization Goss texture. The rates of heating for recrystallization also have some effects on the formation of the recrystallization textures. For example, a rapid heating tends to increase the Goss component.
A mechanism how the presence of the fine particles before rolling deformation inhibits the formation of Goss oriented recrystallized texture is discussed in detail. The large angle grain boundary is formed between the fine Goss structure and the rolled matrix with the (111)[\bar1\bar12] orientation at the first stage of recrystallization, because the fine structure is a minute region with a very steep strain gradient in the rolled matrix. Whereas in the case of {310}⟨001⟩ oriented fine structure, which is considered to be a minute region with relatively mild strain gradient, the small angle grain boundary is expected to form at the first stage of nucleation. This difference between the two fine structures seems to have a great effect on the formation of the recrystallization textures even in the case of which the dispersion of the fine particles exists before rolling deformation.
A discussion is made from the viewpoints of the free energy balance inside the fine structures and the retarding effect of the dispersion of the fine particles on the grain boundary movement in the process of nucleation.

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The effect of MgCl₂ concentration, test temperature, specimen potential and applied stress on the induction and propagation periods of the stress-corrosion cracking of 18–8 stainless steel in MgCl₂ solutions has been investigated by measuring the elongation of the specimen throughout the tests. It has been shown that these periods are influenced differently by the separate variables, with the specimen potential having the largest effect. It is thought that crack propagation is initiated by the rise of the corrosion potential caused by film repair.

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The temperature dependence of electrical resistivity has been measured for pure iron with various RRR_H,4.2K values from 352 to 11390. It is found that the experimental data in the temperature range from 1.6 K to room temperature can be expressed by a simple sum of the phonon scattering term, a term proportional to T² and residual resistivity. The phonon scattering term is estimated by the Grüneisen-formula. The coefficient of the T² term is (2.2±0.1)×10⁻¹¹(Ω·cm·deg⁻²) and the term proportional to T is negligibly small. A new index, RRR_H,0K, is suggested as an appropriate measure of purity for highly purified iron, and the largest value of RRR_H,0K obtained is 20210 on the sample with RRR_H,4.2K 11390.

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Mechanical properties of polycrystalline copper and Cu-13 at%Al alloy have been investigated as a function of grain size and specimen thickness at room temperature, with the following results: (1) The flow stress of both copper and Cu-13 at%Al alloy decreases as the ratio of specimen thickness to grain size decreases below a critical value. (2) The Hall-Petch relation against the grain size shows a turning point corresponding to the critical value. (3) The Hall-Petch relation is always satisfied in the thick specimens of Cu-13 at%Al alloy. In thick specimens of copper, however, the grain size in the Hall-Petch relation is replaced by the mean free path of dislocations at various strains. (4) The mean free path of dislocations in copper corresponds to the length of slip bands instead of the cell size, because the cell structure does not develop sufficiently.

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The orientation and structure of palladium particles evaporated onto NaCl, KCl, KBr and KI cleaved in ultrahigh vacuum have been studied by electron diffraction and electron microscopy. It is concluded that the external shape of the epitaxial particles with the (001) orientation, showing a square shape, is generally an octahedron, although they have so far been considered to be a square pyramidal shape. The particles with the octahedral form grow at the nucleation stage, and then their shape changes gradually into a form truncated by six {100} faces in the subsequent stage. This shape is similar to Wulff polyhedron. The particles with the (001), (111) and (110) orientations have been observed. Furthermore, three kinds of the multiply-twinned particles of palladium have actually been observed on electron micrographs. Their particle sizes are generally very large as compared with those predicted by Ino.

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