Martensite-Austenite Phase Transformation
Position-dependent shear-induced austenite-martensite transformation in double-notched TRIP and dual-phase steel samples
... local austenite shear strain, austenite fraction and change in average carbon concentration are shown for the TRIP-2min sample for increasing macroscopic shear ...the austenite fraction continuously ...
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A Study of the Properties of a High Temperature Binary Nitinol Alloy Above and Below its Martensite to Austenite Transformation Temperature
... monoclinic martensite. For functional use in a superelastic or shape memory application, the material is optimized by cold working and heat treating at lower temperatures so that nano sized subgrains, a high ...
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Effect of the morphology of the martensite-austenite phase on fracture of the weld heat affected zone in vanadium and niobium microalloyed steels
... M-A phase During the heating stage of the second cycle of the simulated welding of steels shown in Fig 1, dissolution of cementite and nucleation and growth of reverse austenite take ...place. ...
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Effect of nonlinear and noncollinear transformation strain pathways in phase-field modeling of nucleation and growth during martensite transformation
... The phase- field microelasticity theory has exhibited great capacities in studying elasticity and its effects on microstructure evolution due to various structural and chemical non-uniformities (impurities and ...
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The Complex Phase Transformation of Austenite in High Strength Linepipe Steels and Its Influence on the Mechanical Properties
... neighboring austenite grains transformed to martensite after water quenching into room ...three phase equilibrium line will also be lowered to some ...the transformation model, a normal Fe-C ...
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A procedure for indirect and automatic measurement of prior austenite grain size in bainite/martensite microstructures
... of phase-transformations in steels is the determination of the PAGS from the final ...retained austenite, for example blocks and films in a matrix of bainitic ferrite or martensite, it is possible to ...
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Microstructure and Crystallographic Features of Martensite Transformed from Ultrafine Grained Austenite in Fe 24Ni 0 3C Alloy
... ne-grains, transformation, martensite, microstructure, orientation relationship ...martensitic transformation from ultrafine-grained austenite in steels, because martensite structure in ...
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A model and experimental validation to predict heating rates for overlap between ferrite recrystallization and austenite transformation in dual phase steel manufacture
... texture evolution, 18,19 texture memory effect, 20 increase in ultimate tensile strength and enhanced % elongation, 21 etc. However, the chosen heating rates were mostly arbitrary and inconsistent, as the sole aim of the ...
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Tempering stability of retained austenite in nanostructured dual-phase steels
... retained austenite was calculated by measuring the integrated intensities of the (111), (200), (220) and (311) in austenite peaks, (110), (002), (112) and (022) in bainite peaks, and finally (110), (200), ...
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Martensitic Transformation of Retained Austenite in Ferrite Matrix for Low Alloy Steel
... Martensitic transformation behavior in low-alloy transformation-induced plasticity steels has been studied at 293 K and 193 ...received austenite precipitated in the ferrite matrix satis fi ed the ...
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Microstructures of Pearlite and Martensite Transformed from Ultrafine Grained Austenite Fabricated through Cyclic Heat Treatment in Medium Carbon Steels
... of martensite transformed from ultrafine-grained austenite were different from those transformed from coarse-grained ...the phase transformation behaviors from ultra fi ne-grained ...
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Metastable austenite driven work-hardening behaviour in a TRIP-assisted dual phase steel
... mechanically-induced transformation behaviour of the metastable austenite phase in a high-strength industrial TRIP-assisted Dual Phase steel was monitored in situ using high- energy ...
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Effects of Austenite Conditioning on Austenite/Ferrite Phase Transformation of HSLA Steel
... the phase trans- ...the phase transformation of HSLA ...diffusional transformation of HSLA steel controlled by the interface nucleation growth mechanism is accelerated by the deformation bands ...
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Free boundary conditions at austenite-martensite interfaces
... the phase transition is characterized by a large mist strain T ( 10%) in the martensitic phase; some materials, primarily NiTi, can undergo this transition thousands of times without showing noticeable ...
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The austenite/lath martensite interface in steels: Structure, athermal motion, and in-situ transformation strain revealed by simulation and theory
... and their glide planes that can predict the observed habit plane, the transformation.. 80.[r] ...
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Sensivity Analysis of the Cellular Automata Model for Austenite Ferrite Phase Transformation in Steels
... scale austenite (γ) to ferrite (α) phase transformation ...predicts phase transformation progress starting from the fully austenitic or two-phase ...implemented ...
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Phase Transformation of α'' Martensite Structure by Aging in Ti 8 mass%Mo Alloy
... 00 martensite was formed in Ti-8 mass%Mo alloy by quenching from 1223 ...investigate phase transformation of the 00 martensite structure by isothermal ...00 martensite to and phases was ...
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Characterisation of electric current treated austenite using misorientation angle distributions in martensite
... and martensite grains are defined as having 5 pixels and disorientation be- tween them of < 5 o , above which a new grain will be ...The martensite laths were indexed using bcc ferrite and their textures ...
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Phase Field Simulation of Austenite to Ferrite Transformation and Widmanstätten Ferrite Formation in Fe C Alloy
... 2 Faculty of Maritime Sciences, Kobe University, Kobe, 658-0022, Japan The formation process of Widmansta¨tten ferrite plates during the isothermal austenite to ferrite transformation in Fe-C alloy is ...
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Effect of Austenite-to-Ferrite Phase Transformation at Grain Boundaries on PWHT Cracking Susceptibility in CGHAZ of T23 Steel
... be austenite with carbon concentration, on the basis of EPMA and TEM ...the austenite at the grain boundary of CGHAZ does not transform into ferrite because the ferrite nose time in TTT-curve is longer than ...
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