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CRYSTALLOGRAPHY OF ""LATH MARTENSITE"" AND STABILIZATION OF RETAINED AUSTENITE
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Techniques for Determining Retained Austenite
AM&P Technical Articles, 2022Abstract Accurate measurement of retained austenite levels is important in the development and control of a heat treatment process.
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Retained Austenite and the Tempering of Martensite
Nature, 1960THE decomposition of retained austenite as the second stage in the tempering of quenched steels is well recognized, and has been explored extensively. However, the role of retained austenite in the first stage tempering reaction has not been studied widely.
S. MATAS, R. F. HEHEMANN
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Transformation microyielding of retained austenite
Acta Metallurgica, 1989Abstract The reversal in the temperature dependence of the elastic limit accurately determines the Mσs temperature of retained austenite in 4340 steel. Two models, one based on an exponential distribution of pre-existing nucleation sites and another based on an autocatalytic-site potency distribution, were compared in predicting the constitutive ...
G.N Haidemenopoulos +3 more
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A study of the carbon distribution in retained austenite
Scripta Materialia, 2007Cold-rolled and annealed transformation-induced plasticity (TRIP) steels were overaged to modify the carbon concentrations (Cγ) in retained austenite. Experimental Cγ values were directly obtained by electron energy loss spectroscopy and compared with data derived from X-ray diffraction measurements of the austenite lattice parameter (aγ). In this way,
C.P. Scott, J. Drillet
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1999
Abstract This chapter addresses the issue of retained austenite in quenched carburized steels. It explains why retained austenite can be expected at the surface of case-hardened components, how to estimate the amount that will be present, and how to effectively stabilize or otherwise control it. It presents detailed images and data plots
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Abstract This chapter addresses the issue of retained austenite in quenched carburized steels. It explains why retained austenite can be expected at the surface of case-hardened components, how to estimate the amount that will be present, and how to effectively stabilize or otherwise control it. It presents detailed images and data plots
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Determination of retained austenite in bearing steel
Hyperfine Interactions, 1986Mőssbauer effect experiments in scattering geometry were performed for gauging plates and bearings in order to measure the retained austenite content. The results, obtained from numerical calculations of Mossbauer spectra are compared with the X-ray diffraction measurements.
J. Suwalski +3 more
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Modelling of retained austenite in carburized layers
Journal de Physique IV, 2004In this paper, modelling of the phase composition of the carburized case produced on steel alloys containing chromium, manganese and nickel will be discussed. In particular, the effect of steel composition on the amount of retained austenite and carbide structure will be discussed.
M. Przyłęcka, W. Gęstwa, G. E. Totten
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X-ray determination of retained austenite
Journal of Heat Treating, 1981The variation of retained austenite content in heat treated steels is studied here by an X-ray diffraction technique. It is found that the retained austenite content in steel samples studied increases with the austenitizing temperature and decreases slowly with the tempering temperature up to 177 °C.
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