Crystal structures and magnetic properties of Ir–Mn–Sb alloys were studied through X-ray and magnetic analyses. Intermetallic compounds of the Cl_b-type structure are found in IrMn_1+xSb alloys with x=0.5∼0.8.
IrMn_1.5Sb and IrMn_1.8Sb have lattice parameters of 0.6154 and 0.6141 nm at room temperature, magnetic moments n_B of 2.6 and 2.1 μ_B per Mn atom at absolute zero, and Curie temperatures T_c of 278 and 258 K, respectively. From the temperature dependence of reciprocal magnetic susceptibility, these Cl_b-type alloys with excess Mn are expected to be ferrimagnetic.

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An apparatus for the precise measurement of electrical resistivity of aluminum alloys above room temperature has been constructed. The electrical resistivities of pure aluminum and of Al-1.03 at% Ag alloy were measured from room temperature to 500°C in air to investigate the correlation between electrical resistivity and the configuration of Ag atoms in the alloy. The difference in resistivity between the pure aluminum and the Al–Ag alloy changed markedly with the measuring temperature, and the behavior corresponds well to the quasi-equilibrium phase diagram of the alloy including G.P. zones. Furthermore, the result shows that the G.P. zones are formed not only in the presence of supersaturated vacancies but also at the equilibrium vacancy concentration during the slow cooling process.

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Precipitation behaviour in Ni-8%Ti and Ni-10%Ti alloys at 550∼950°C has been studied by means of transmission electron microscopy and X-ray diffraction. The results are summarized as follows:
(1) Stable η-phase plates are formed directly from the supersaturated solid solution at high temperatures, while metastable α₂-phase cuboidal particles appear after aging for a short time at low temperatures. The latter process is observed at temperatures below 675°C for the Ni-8%Ti alloy and below 940°C for the Ni-10%Ti alloy.
(2) The distribution of α₂-phase particles is regular at temperatures below 575°C for the Ni-8%Ti alloy and below 900°C for the Ni-10%Ti alloy, while the distribution is at random at higher temperatures.
(3) The lattice parameter of α₂-phase decreases with rise in aging temperature.
(4) From the above results, the upper limits for the precipitation of α₂-phase and the formation of modulated structure are drawn on the Ni-rich side of the Ni–Ti diagram.
(5) X-ray side-bands are observed at the stage where a regular array of α₂-phase particles is formed.

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Primary recrystallized textures of 3% silicon steel sheets cold-rolled to various directions and subsequently decarburized were analyzed by three dimensional crystalline orientation distribution function. Orientation, size and incubation period of secondary recrystallized grains were observed after final secondary recrystallization annealing. They were compared with the orientation distribution of primary recrystallized grains having a peak orientation near {110}⟨001⟩ and {111}⟨112⟩, the latter of which is a main component in the primary recrystallized texture. The behaviour of secondary recrystallization was discussed with special reference to the shapes of orientation distribution curves of primary recrystallized grains. The grain size, orientation distribution and other characters of secondary recrystallization are found to have a close correlation with the two primary recrystallization texture components, {110}⟨001⟩ and {111}⟨112⟩. This correlation was successfully explained in terms of some coincidence relations concentrated near 35° about the ⟨110⟩ axis.

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The usual emf measurements with a potentiometer were performed in the temperature range of 450 to 310°C to verify whether an expected tendency of liquid separation exists in the molten Cd–X alloys.
As expected, the unusual temperature dependence of the emf was observed over the limited composition ranges for all three alloy systems, lying on the high cadmium side for the molten Cd–Pb and the Cd–Sn alloys but, conversely, on the low cadmium side for the molten Cd–Bi alloys.

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The effect of cold working on the magnetic properties and the precipitation morphology of Co–Fe–Nb alloys has been investigated by means of hysteresis loop measurements and transmission electron microscopy.
The results obtained are summarized as follows:
(1) The solution treated and 50% cold rolled specimens show a peak value of coercive force when they are annealed at 800°C for 1 h. While, this peak occurs when the specimen heavily cold worked by 97.8% is annealed at 700°C for 1 h. The squareness ratio and the rectangularity increase as the cold working rate increases.
(2) In the solution treated and 50% cold rolled specimens, the precipitates are in the form of a thin platelet, while in the alloy is cold worked heavily by 97.8%, the precipitates become spherical. The structure of the precipitates is confirmed to be a hexagonal Laves phase Co₃Nb.
(3) Magnetic hardening of the heavily cold worked alloy is attributed to the precipitation of spherical Co₃Nb.

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