Results 131 to 140 of about 391 (175)

Kinetics of the bainite transformation

Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2004
Summary: A theory is developed for the evolution of bainite as a function of time, temperature, chemical composition and austenite grain size. The model takes into account the details of the mechanism of transformation, including the fact that nucleation begins at the austenite grain surfaces, and that the growth of a sheaf occurs by the repeated ...
Harshad Bhadeshia
exaly   +3 more sources

The role of carbon on the kinetics of bainite transformation in steels

Scripta Materialia, 2002
Abstract The roles of carbon, cementite precipitation and substitutional alloying elements are discussed with respect to their effects on the bainite transformation kinetics. Our description of the nucleation and growth steps has allowed the derivation of a kinetic model for the overall transformation.
D Quidort, Y Bréchet
exaly   +2 more sources

The effect of small stresses on the kinetics of the bainite transformation

Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 1995
Experiments have been conducted in which bainite is allowed to grow under the influence of an externally applied stress of magnitude less than the yield strength of austenite. By monitoring the transformation strains along two orthogonal directions, it has been possible to demonstrate that the stress in general accelerates the overall transformation ...
H K D H Bhadeshia, P H Shipway
exaly   +2 more sources

Recent progress: kinetics of the bainite transformation in steels

Current Opinion in Solid State and Materials Science, 2004
Abstract There are two different approaches to model the kinetics of the bainite transformation. The diffusional growth model needs to adopt the solute drag effect, and a quantitative approach is proposed although the diffusion of substitutional alloying elements is not fully accepted experimentally.
exaly   +2 more sources

Continuous cooling transformation behavior and the kinetics of bainite formation in a bainitic–martensitic steel

International Journal of Materials Research, 2017
Abstract The continuous cooling transformation diagram of a low carbon bainitic–martensitic steel was constructed using dilatometry and metallographic methods. It was found that as cooling rate increases, the structure changes from granular bainite to lath martensite.
Ehsan Mohammad Sharifi, Reza Vafaei
exaly   +2 more sources

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