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4 Jul 2024: Book on bainite (electronic version available for free download). Movies about Martensite and Bainite.

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14 Feb 2020: Design of novel high-strength bainitic steels. Part II. F. G. Caballero, H. K. D. H. Bhadeshia,. K. J. A. Mawella, D. G. Jones and P. Brown. Abstract. A combination of thermodynamic, kinetic and mechanical property models and physical metallurgy

14 Feb 2020: Annual Lecture, Royal Microscopical Society (2000): Mechanically Alloyed Metals. H. K. D. H. Bhadeshia. Abstract. Mechanical alloying involves the severe deformation of mixtures of powders until they form the most intimate of atomic solutions. Inert

14 Feb 2020: M. 4. C. 3. Precipitation in Fe-C-Mo-V Steels and Relationship to Hydrogen Trapping. S. Yamasaki and H. K. D. H. Bhadeshia. Abstract. Strong steels suffer from embrittlement due to dissolved hydrogen, a phenomenon which can be mitigated by trapping

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14 Feb 2020: A Thermodynamic Analysis of Isothermal Transformation Diagrams. H. K. D. H. Bhadeshia. Abstract. A thermodynamic model has been developed to allow the prediction of isothermal transformation diagrams for steels, based on their chemical composition.

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4 Jul 2024: Download PDF file of paper from HAL open access.

14 Feb 2020: Residual Stress Part 1 - Measurement Techniques. P. J. Withers and H. K. D. H. Bhadeshia. Abstract. Residual stress is that which remains in a body which is stationary and at equilibrium with its surroundings. It can be very detrimental to the

14 Feb 2020: Plastic strain due to twinning in austenitic TWIP steels. B. Qin and H. K. D. H. Bhadeshia. Abstract. Twinning induced plasticity steels are austenitic alloys in which mechanical twinning is a prominent deformation mode, and which exhibit

14 Feb 2020: Quantitative Metallography of Deformed Grains. Q. Zhu, C. M. Sellars. H. K. D. H. Bhadeshia. Abstract. The effect of plastic deformation on the grain boundary surface area per unit volume and edge length per unit volume is examined using two methods.

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14 Feb 2020: Changes in Toughness at Low Oxygen Concentrations in Steel Weld Metals. Shinichi Terashima and H. K. D. H. Bhadeshia. Abstract. Oxides in steel weld metals can initiate fracture or can improve toughness by influencing the development of beneficial

14 Feb 2020: Size distribution of oxides and toughness of steel weld metals. Shinichi Terashima and H. K. D. H. Bhadeshia. Abstract. Experiments have been conducted to modify the size distribution of oxide particles in steel weld metals which have predominantly

14 Feb 2020: Residual Stress Part 2 - Nature and Origins. P. J. Withers and H. K. D. H. Bhadeshia. Abstract. Residual stress is that which remains in a body which is stationary and at equilibrium with its surroundings. It can be detrimental when it reduces the

14 Feb 2020: Characterisation of Severely Deformed Austenitic Stainless Steel Wire. Han-Shen Wang, J. R. Yang and H. K. D. H. Bhadeshia. National Taiwan University. Materials Science and Engineering. 1 Rosevelt Road, Section 4, Taipei, Taiwan ROC (106).

14 Feb 2020: Download PDF file of paper on kinetics of bainite..

14 Feb 2020: Three-Dimensional Atom Probe Analysis of Carbon Distribution in Low-Temperature Bainite. M. Peet, S. S. Babu, M. K. Miller and H. K. D. H. Bhadeshia. The images presented below are from research described in the Scripta Materialia article available

14 Feb 2020: Kinetics of Simultaneous Transformations. H. K. D. H. Bhadeshia. Abstract. It is often the case that a number of solid--state transformations occur concurrently, starting from the same parent phase. The transformations may occur at different rates,

14 Feb 2020: Heterogeneous Deformation and Recrystallisation of Iron-Base ODS PM2000 Alloy. C. Capdevila, Y. L. Chen, N. C. K. Lassen, A. R. Jones and H. K. D. H. Bhadeshia. Abstract. The recrystallisation behaviour of PM2000 oxide dispersion strengthened

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14 Feb 2020: Modelling of Phase Transformations in Steel Weld Metal. H. K. D. H. Bhadeshia. Abstract. This paper deals with some of the latest issues in the modelling of steel weld microstructures, building on work already published in the open literature. The

14 Feb 2020: Welding Procedures and Type IV Phenomena. J. A. Francis, W. Mazur and H. K. D. H. Bhadeshia. Abstract. In this work, we attempt a quantitative estimation of the type IV rupture stress for welds in ferritic power plant steels containing 9-12 wt. %

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14 Feb 2020: The Charpy Impact Transition Temperature for some Ferritic Steel Welds. S. H. Lalam, H. K. D. H. Bhadeshia and D. J. C. MacKay. Abstract. Body-centered cubic iron undergoes a ductile-brittle fracture transition as a function of temperature. A common

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14 Feb 2020: Some Phase Transformations in Steels. H. K. D. H. Bhadeshia. Abstract. Many essential properties of iron alloys depend on the atomic mechanism of phase change. Following a description of the mechanisms established for solid state phase

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14 Feb 2020: Modelling of kinetics and dilatometric behaviour of non-isothermal pearlite-to-austenite transformation in an eutectoid steel. C. G. deAndres, C. Capdevila, F. G. Caballero and H. K. D. H. Bhadeshia. Abstract. The formation of austenite during the

14 Feb 2020: Effect of Strain Heterogeneity on Recrystallisation of PM2000. C. Capdevila, Y. L. Chen, A. R. Jones and H. K. D. H. Bhadeshia. Abstract. The recrystallisation behaviour of PM2000 oxide dispersion strengthened ferritic alloy has been investigated

14 Feb 2020: Bayesian Neural Network Model for Austenite Formation in Steels. L. Gavard, H. K. D. H. Bhadeshia, D. J. C. MacKay and S. Suzuki. Abstract. The formation of austenite during the continuous heating of steels has been investigated using neural network

14 Feb 2020: Topology of Grain Deformation. S. B. Singh and H. K. D. H. Bhadeshia. Abstract. The deformation of a polycrystalline material leads to changes in the amount of grain surface and grain edge per unit volume. These parameters are of importance in

14 Feb 2020: Estimation of the Mechanical Properties of Ferritic Steel Welds,. Part I: Yield and Tensile Strength. S. H. Lalam, H. K. D. H. Bhadeshia and D. J. C. MacKay. Abstract. The yield strength and ultimate tensile strength of ferritic steel weld metal

14 Feb 2020: Reliability of Weld Microstructure and Property Calculations. H. K. D. H. Bhadeshia. Abstract. We depend in our everyday life on the performance of vast quantities of steel, which we use without giving it a second thought. This is possible because

14 Feb 2020: Phase-field study of the effect of interface anisotropy on morphological evolution in cubic metals. R. S. Qin and H. K. D. H. Bhadeshia. Abstract. An expression is proposed for the anisotropy of interfacial energy of cubic metals, based on the

14 Feb 2020: Estimation of the Mechanical Properties of Ferritic Steel Welds,. Part II: Elongation and Charpy Toughness. S. H. Lalam, H. K. D. H. Bhadeshia and D. J. C. MacKay. Abstract. In previous work we presented models which can be used to estimate the

14 Feb 2020: Modelling Creep Rupture Strength of Ferritic Steel Welds. D. Cole, C. Martin-Moran, A.G. Sheard, H. K. D. H. Bhadeshia and D. J. C. MacKay. Abstract. Recent changes in the design of steam turbine power plant have necessitated the replacement of

14 Feb 2020: Alternatives to the Ferrite-Pearlite Microstructures. H. K. D. H. Bhadeshia. Abstract. Structural steels based on a mixed microstructure of allotriomorphic ferrite and pearlite have a well-established history of cost-effectiveness and reliability.

14 Feb 2020: Three-Dimensional Atom Probe Analysis of Carbon Distribution in Low-Temperature Bainite. M. Peet, S. S. Babu, M. K. Miller and H. K. D. H. Bhadeshia. Abstract. A bainitic microstructure with fine ferrite plates (20 to 40 nm) in a matrix of

14 Feb 2020: Mechanical Stabilisation of Bainite. S. B. Singh and H. K. D. H. Bhadeshia. IIT Kharagpur (India) and Cambridge University (U.K.). Abstract. Bainite, like martensite, forms by a displacive mechanism of transformation. Based on microstructural

14 Feb 2020: Characteristics of High-Power Diode-Laser Welds for Industrial Assembly. C.A. Walsh, H.K.D.H. Bhadeshia, A. Lau, B. Matthias, R. Oesterlein, and J. Drechsel. Abstract. Recent progress in available beam power and beam quality has meant that high

14 Feb 2020: Strain Partitioning and Mechanical Stability of Retained Austenite. Joo Hyun Ryu, Dong-Ik Kim, Hyoung Seop Kim, H. K. D. H. Bhadeshia and Dong-Woo Suh. The mechanical stability of austenite in steels which rely on transformation-induced plasticity

14 Feb 2020: Friction stir welding of dissimilar alloys. T. DebRoy and H. K. D. H. Bhadeshia. Friction stir welding does not involve bulk melting of the components that are joined. This has inspired attempts to exploit it for joining materials which differ in

14 Feb 2020: Modelling and characterisation of V. 4. C. 3. precipitation and cementite dissolution during the tempering of Fe-C-V martensitic steel. S. Yamasaki and H.K.D.H. Bhadeshia. Abstract. The precipitation and Ostwald ripening behaviour of V. 4. C. 3.

14 Feb 2020: Optimisation of a Multiphase Intermetallic Metal-Metal Composite Material. J. D. Robson, N. Duvauchelle, A. Lugan, J. Street and H. K. D. H. Bhadeshia. Abstract. Metal-Metal composites (MeMeC's) manufactured by coextruding beta Ni(Al,Ti), beta' Ni.

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14 Feb 2020: TRIP-Assisted Steels? H.K.D.H. Bhadeshia. Abstract. The role of transformation--induced plasticity in Fe-Mn-Si-C steels intended for automobiles is investigated. The high uniform ductility associated with these alloys is often attributed to the

14 Feb 2020: Quantitative Alloy Design Tools for Ni--Base Superalloys. Final Report EPSRC Grant GR/K23263. Principal Investigator: Dr. H.K.D.H. Bhadeshia. Introduction. The development of new nickel alloys for aeroengine applications is a difficult taks,