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Materialometrical approach of predicting the austenite formation temperatures
Materials Science and Engineering: A, 2006Abstract Artificial neural network model—one of materialometrical approaches was developed basing on experimental data collected from domestic and foreign literatures to predict the austenite formation temperatures (Ac3 and Ac1) of steels. Scatters diagrams and statistical criteria showed that the prediction performance of artificial neural network ...
Wei You +3 more
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Effect of Austenitizing Temperature on Formation of Hard Bainite
Metal Science and Heat Treatment, 2014The conditions of formation of what is known as “hard bainite” in the form of packets containing long thin ferrite crystals of a nanosize thickness are determined for a high-carbon low-alloy steel. The effect of the temperature of austenitizing before isothermal holds on the conditions of formation of such structure and on the hardness of the steel is ...
Dequn Kong, Qingsuo Liu, Lianjie Yuan
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Alloying of austenitic steels for operation at low temperatures
Metal Science and Heat Treatment, 19701. With the development of a stable austenitic steel the total concentration of alloying elements should ensure the complete absence of martensite on cooling of the steel to operating temperature as well as possible local plastic deformation. The addition of a larger amount of alloying elements is inexpedient. 2. The addition of chromium,
E. A. Ul'yanin, B. M. Ovsyannikov
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Thermal fatigue of austenitic steels at cryogenic temperatures
Strength of Materials, 19751. A method has been developed that permits comparative thermal-fatigue tests at cryogenic temperatures. 2. Thermal cycling under load has a substantial effect on the strength of metals, lowering the strength 18–22% in 104 cycles. 3. Ductile Cr−Ni austenitic steel 12Kh18N10T is the least sensitive to thermal cycling.
G. A. Stepanov, V. I. Skol'tsov
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Impact toughness of austenitic steels at low temperatures
Metal Science and Heat Treatment, 19671. If austenite undergoes no change in the impact test than the impact toughness decreases monotonically with decreasing temperatures. 2. The martensite forming during the test increases the work of formation of the crack but reduces the work of its propagation. The curves of the impact toughness have peaks.
A. P. Gulyaev, A. M. Minaev
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Fatigue and microstructure in austenitic high temperature alloys
International Journal of Pressure Vessels and Piping, 1991Abstract The initial stages in the fatigue life of austenitic engineering alloys at intermediate and at elevated temperatures are reviewed. The establishment of a dislocation substructure characteristic of cyclic deformation, and the initiation of microcracks are discussed.
J. Bressers, M. Steen
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Austenitizing and Typical Heat Treatment Temperatures for Steels
2014Abstract This article is a compilation of tables that present information on austenitizing temperatures for direct-hardening carbon and alloy steels, case depth of steels for different carburizing times and temperatures, typical heat treatments for case hardening of carbon and carburizing of alloy steels, as well as direct hardening of ...
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Temperature Dependence of Yielding in Austenitic Stainless Steels
1980The tensile properties of stable austenitic stainless steels such as AISI 310 (Fe-25Cr-20Ni-2Mn-0.08C) have a regular temperature dependence with trends similar to the classical behavior expected for metals and alloys having the facecentered cubic structure [1].
R. L. Tobler +2 more
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Deformation of Metastable Austenitic Steels at Low Temperatures
1982The reaction of a solid to continuously increasing applied tensile load is portrayed using a stress-versus-strain curve. From stress-strain curves the Young’s modulus, yield strength, ultimate tensile strength, percent elongation, and work hardening characteristics can be obtained.
R. P. Reed, R. L. Tobler
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The low temperature properties of austenitic cast irons
Cryogenics, 1971Abstract The tensile strengths of austenitic flake and nodular graphite irons increase rapidly with falling temperatures in the range 295 to 75 K. An initial increase in elongation may be observed, but when martensite is formed on cooling, elongation values decrease rapidly.
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