Journal ArticleDOI
X-ray determination of retained austenite
TLDR
In this paper, the variation of retained austenite content in heat treated steels is studied by an X-ray diffraction technique, and the effects of surface preparation on the results of X-Ray diffraction measurements are also demonstrated.Abstract:
The 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. Above this temperature, it decreases very rapidly until at the tempering temperature of 260 °C it becomes completely zero. The effects of surface preparation on the results of X-ray diffraction measurements are also demonstrated.read more
Citations
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Steels for bearings
TL;DR: In this paper, the structure and properties of bearing steels prior to the point of service are first assessed and described in the context of steelmaking, manufacturing and engineering requirements, followed by a thorough critique of the damage mechanisms that operate during service and in accelerated tests.
Journal ArticleDOI
Formation mechanisms of white layers induced by hard turning of AISI 52100 steel
TL;DR: In this paper, the formation mechanisms of white layers (WLs) induced by machining of through-hardened (martensitic and bainitic) AISI 52100 steel were investigated using transmission electron microscopy.
Journal ArticleDOI
Characterization of the Surface Integrity induced by Hard Turning of Bainitic and Martensitic AISI 52100 Steel
TL;DR: In this paper, X-ray diffraction measurements revealed that tensile residual stresses accompanied with higher volume fraction of retained austenite are present in the thermally induced white layer, while compressive residual stresses and decreased retained Austenite content was found in the plastically created white layer.
Journal ArticleDOI
Erosion behavior of high silicon bainitic structures: I: Austempered ductile cast iron
TL;DR: In this article, the erosion behavior of unalloyed cast iron has been studied as a function of austempering time for irons austempered in the upper bainitic temperature range (370 °C).
Journal ArticleDOI
The correlation between ZDDP tribofilm morphology and the microstructure of steel
TL;DR: In this article, the relationship between the steel microstructure and the tribofilm morphology was analyzed using a new AFM technique to analyze the relationship of steel microstructures and the morphology of the tribo-films.
References
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Journal ArticleDOI
The effect of the first and second stages of tempering on microcracking in martensite of an Fe-1.22 C alloy
Thomas A. Balliett,George Krauss +1 more
TL;DR: In this paper, the effect of tempering on microcracking in the plate martensite of an Fe-1.22 C alloy was investigated by isothermal heat treatments in the temperature range between 180 and 225°C.
Journal ArticleDOI
Contribution à l’étude des facteurs métallurgiques affectant la stabilité dimensionnelle des aciers
P. Duval,G. Murry,A. Constant +2 more
Journal ArticleDOI
Correlation of measurements of retained austenite in carburized steels by X-Ray diffraction and quantitative metallography
TL;DR: In this paper, the retained austenite contents in carburized samples of EX24, EX32, and SAE 4820 were measured by both X-ray diffraction and automated quantitative metallography.