Analysis of effect of alloying elements on martensite start temperature of steels

Abstract The stabilisation of austenite, a phenomenon that frequently occurs, renders the transformation from austenite to martensite difficult. The straightforward method of analysing the effect of a specific factor on the stabilisation of austenite is through its influence on the martensite start temperature M s. The present work outlines the use of an artificial neural network to model the M s of engineering steels based on their chemical composition and austenite grain size. The results are focused on elucidating the role in the stabilisation of austenite of alloying elements in steels, including less common elements such as vanadium and niobium, as well as the austenite grain size. Moreover, a physical interpretation of the results is presented.

[1]  G. S. Ansell,et al.  The influence of austenite strength upon the austenite-martensite transformation in alloy steels , 1970 .

[2]  G. S. Ansell,et al.  On the effect of fine grain size on the Ms temperature in Fe-27Ni-0.025C alloys , 1983 .

[3]  M. Hillert,et al.  The Regular Solution Model for Stoichiometric Phases and Ionic Melts. , 1970 .

[4]  David J. C. MacKay,et al.  A Practical Bayesian Framework for Backpropagation Networks , 1992, Neural Computation.

[5]  G. B. Olson,et al.  A general mechanism of martensitic nucleation: Part I. General concepts and the FCC → HCP transformation , 1976 .

[6]  Douglas V. Doane,et al.  Hardenability concepts with applications to steel , 1978 .

[7]  P. Brown,et al.  Design of novel high strength bainitic steels: Part 2 , 2001 .

[8]  J. Hirth.  The influence of grain boundaries on mechanical properties , 1972 .

[9]  Sybrand van der Zwaag,et al.  Effects of Carbon Concentration and Cooling Rate on Continuous Cooling Transformations Predicted by Artificial Neural Network , 1999 .

[10]  M. Atkins,et al.  Atlas of Continuous Cooling Transformation Diagrams for Engineering Steels , 1980 .

[11]  M. Umemoto,et al.  Effects of austenitizing temperature and austenite grain size on the formation of athermal martensite in an iron-nickel and an iron-nickel-carbon alloy , 1974, Metallurgical and Materials Transactions B.

[12]  G. G. Stokes.  "J." , 1890, The New Yale Book of Quotations.

[13]  Gregory B Olson,et al.  Kinetics of F.C.C. → B.C.C. heterogeneous martensitic nucleation—I. The critical driving force for athermal nucleation , 1994 .

[14]  T. Maki,et al.  The Ms temperature and morphology of martensite in Fe-31 Pct Ni-0.23 Pct C alloy , 1971 .

[15]  David J. C. MacKay,et al.  The Evidence Framework Applied to Classification Networks , 1992, Neural Computation.

[16]  Morris Cohen,et al.  A general mechanism of martensitic nucleation: Part III. Kinetics of martensitic nucleation , 1976 .

[17]  H. Bhadeshia,et al.  Driving force for martensitic transformation in steels , 1981 .

[18]  S. Zwaag,et al.  Determination of Martensite Start Temperature in Engineering Steels Part I. Empirical Relations Describing the Effect of Steel Chemistry , 2000 .

[19]  H. K. D. H. Bhadeshia,et al.  Design of novel high strength bainitic steels: Part 1 , 2001 .

[20]  W. Blows,et al.  Temperature. , 2018, Nursing times.

[21]  David J. C. MacKay,et al.  Bayesian Interpolation , 1992, Neural Computation.

[22]  H. K. D. H. Bhadeshia,et al.  Neural Networks in Materials Science , 1999 .