Results 131 to 140 of about 947 (168)

Austenite transformation in the intercritical temperature range

Metal Science and Heat Treatment, 1982
1. Austenitization temperature has the main effect on the amount of α-phase formed in the intercritical temperature range. As this temperature increases the amount of α-phase increases, approaching the calculated amount determined by the intercept rule. 2.
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Néel temperature of high Mn austenitic steels

Metals and Materials International, 2012
The predictive equations for the Neel temperature (TN) of high Mn austenitic steels were reviewed and reevaluated using 116 different measured TN values. The previous equations gave good predictions for TN values of high Mn-low C austenitic steels, but not for those of medium and low Mn-high C austenitic steels, including TWIP steels with less than 20 ...
Jae-Eun Jin, Minsu Jung, Chan-Young Lee, Junyeong Jeong, Young-Kook Lee   +4 more
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Austenite grain size and the martensite-start temperature

Scripta Materialia, 2009
New experimental evidence confirms the dependence of the martensite-start temperature on the austenite grain size. The Fisher model for the geometrical partitioning of austenite grains by plates of martensite is used here to develop a theory to explain the observations, based on the ability to detect transformation as a function of the austenite grain ...
H YANG, H BHADESHIA
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Materialometrical approach of predicting the austenite formation temperatures

Materials Science and Engineering: A, 2006
Abstract 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, Weihong Xu, Bingzhe Bai, Hongsheng Fang   +3 more
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Thermal fatigue of austenitic steels at cryogenic temperatures

Strength of Materials, 1975
1. 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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Austenitizing and Typical Heat Treatment Temperatures for Steels

2014
Abstract 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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Impact toughness of austenitic steels at low temperatures

Metal Science and Heat Treatment, 1967
1. 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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Low-Temperature Properties of Austenitic Ductile Irons

1963
The low-temperature impact toughness of the existing grades of austenitic ductile iron, as covered by ASTM Specification A-439, all decrease with decrease in temperature, as illustrated by the Charpy V-notch values in Table I. At -320°F the impact values fall within the range 3,5 to 11 ft-lb, D-5 grade having the highest value.
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Temperature Dependence of Yielding in Austenitic Stainless Steels

1980
The 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, R. P. Reed, D. S. Burkhalter   +2 more
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Deformation of Metastable Austenitic Steels at Low Temperatures

1982
The 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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