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Austenite grain growth in structural steel
Metal Science and Heat Treatment, 19721. 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 coalescence of fine grains into a single grain. 2. At higher temperatures there is less difference
S. V. Zagulyaeva, M. I. Vinograd
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Role of annealing twins in austenite grain growth
Metal Science and Heat Treatment, 19781. The change in the structure of the boundaries of recrystallized austenite grains during heating and the development of breaks in the boundaries are due to annealing twins growing from the breaks in the boundaries or near them. 2. Large numbers of annealing twins not connected with the boundaries of the matrix are observed in large ...
K. M. Zhak +3 more
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Grain growth in austenitic stainless steels
Metallography, 1969Abstract Despite the extensive use of Type 347 stainless-steel tubing for regeneratively cooled thrust chambers, very little is known about its grain growth characteristics. Lacking, also, is information on the other 18 Cr8 Ni austenitic steels. Therefore, grain growth curves for AISI Type 304, 316, and 321 were obtained and compared.
J.K. Stanley, A.J. Perrotta
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Ironmaking & steelmaking, 2020
The effects of Al addition on austenite grain growth and particle characterization in heat-affected zone during high-heat-input welding for Mg- deoxidized steel plates without Al (0Al) and with 0.02wt-% Al (200Al) were studied.
Xiao-qian Pan +4 more
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The effects of Al addition on austenite grain growth and particle characterization in heat-affected zone during high-heat-input welding for Mg- deoxidized steel plates without Al (0Al) and with 0.02wt-% Al (200Al) were studied.
Xiao-qian Pan +4 more
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Materialwissenschaft und Werkstofftechnik, 2020
The austenite grain growth behavior of microalloying elements free steel (nitrogen steel) and micro alloyed steel (V−N steel and V−Ti−N steel) was investigated.
W. Fang +4 more
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The austenite grain growth behavior of microalloying elements free steel (nitrogen steel) and micro alloyed steel (V−N steel and V−Ti−N steel) was investigated.
W. Fang +4 more
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Mechanism of austenite grain growth in structural steels
Metal Science and Heat Treatment, 19751. 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 three different mechanisms: I) resorption of grains; II) formation of new boundaries and ...
M. I. Vinograd +2 more
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, 2020
In this paper, the austenite grain growth behaviour of 12Cr ultra-super-critical (USC) rotor steel was investigated by a series of heat treatments. The heat treatments at heating temperatures of 900°C–1250°C and holding time of 1 h–20 h were conducted in
Yue Xu, Jiansheng Liu, Y. Zhao, Y. Jiao
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In this paper, the austenite grain growth behaviour of 12Cr ultra-super-critical (USC) rotor steel was investigated by a series of heat treatments. The heat treatments at heating temperatures of 900°C–1250°C and holding time of 1 h–20 h were conducted in
Yue Xu, Jiansheng Liu, Y. Zhao, Y. Jiao
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Grain growth in heat-resistant austenitic steels
Metal Science and Heat Treatment, 1985In this work a study was made of grain growth kinetics in steels of the 37KhI2N8G8 type alloyed with V, Nb, Ti, Mo, and W (see Table i). Steels were melted in an electric arc furnace. Ingots obtained by vacuum casting after a homogenizing anneal at I050°C for 8 h were forged into bars 15 × 15 mm in section at I180-900°C.
I. K. Denisova +3 more
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Solute drag effect on austenite grain growth in hypoeutectoid steel
, 2020The effect of solute drag on austenite grain growth in hypoeutectoid plain carbon steel is studied by rigorous experimentation and an analytical modelling approach.
Vipin Kumar Devra, J. Maity
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Austenite grain growth in structural steel with titanium
Metal Science and Heat Treatment, 19721. 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 and ESR, although the reduction is sufficient to prevent coalescence of grains in the first ...
S. V. Zagulyaeva, M. I. Vinograd
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