Zobrazeno 1 - 10
of 14
pro vyhledávání: '"M. I. Vinograd"'
Publikováno v:
Metal Science and Heat Treatment. 21:541-544
1. Corundum and silicate stringers lower the high-temperature ductility of nickel in torsion tests. Evenly distributed corundum and globular silicon dioxide (≤0.2%) have a negligible effect on this characteristic. 2. Globular silicon dioxide and co
Publikováno v:
Metal Science and Heat Treatment. 26:106-110
1. The initial period of austenitic grain growth in heating of a hot forged billet of 50G-SSh steel and of forgings after free forging is characterized by the formation of a mixed grain structure of No. 8 fine grains and No. 3-0 coarse. 2. Reforging
Publikováno v:
Metal Science and Heat Treatment. 17:5-9
1. The use of high-temperature metallography and a vacuum stage makes it possible to reveal different mechanisms of austenite grain growth in carbon and alloy structural steels. 2. It was found that austenite grain growth occurs at 850–1250° by th
Publikováno v:
Metal Science and Heat Treatment. 21:206-209
1. The high-temperature plasticity of nickel containing as much as 0.2% evenly distributed inclusions of silicon dioxide and corundum does not decrease in torsion tests but decreases when the inclusions are clustered in the form of stringers. 2. In h
Publikováno v:
Metallurgist. 2:68-71
Autor:
M. I. Vinograd, S. V. Zagulyaeva
Publikováno v:
Metal Science and Heat Treatment. 13:533-536
1. The first period of austenite grain growth in steel 12Kh2N4A at 900\dgC (holding for 2 h or longer) is characterized by the formation of very large grains (grade 2\2-3) among fine grains (grade 9\2-10). The large grains are formed by the coalescen
Publikováno v:
Metal Science and Heat Treatment. 13:37-40
1. With heating of steel 1Kh15N5AM2 at high temperature the austenite is transformed into δ ferrite, which begins at 1200° in the EAM steel and at 1250° in the ESR steel. 2. In the EAM steel the grains of δ ferrite are rounded, while in the ESR s
Publikováno v:
Refractories. 20:573-575
Autor:
S. V. Zagulyaeva, M. I. Vinograd
Publikováno v:
Metal Science and Heat Treatment. 18:114-116
1. Austenite grain growth in steel ShKh15 occurs with formation of separate large grains by merging of groups of fine grains at 1000–1050° and even growth of all grains with straighter boundaries at 1100° and higher. 2. Compared with structural s
Autor:
S. V. Zagulyaeva, M. I. Vinograd
Publikováno v:
Metal Science and Heat Treatment. 14:876-878
1. The presence of titanium nitrides in steel 15KhGNTA prevents formation of large grains by coalescence in the first temperature range of austenite grain growth (950–1050°C). 2. The reduction in the concentration of nitrides is small after VAR an