Results 121 to 130 of about 6,844 (166)

Electroplastic effect at tension in TRIP steel

Izvestiya. Ferrous Metallurgy, 2022
The paper presents the results of a study of electroplastic effect in metastable high-alloyed austenitic-martensitic steel in strip form with the thickness of 0.3 mm during plastic deformation with current of different modes and regimes. Choice of the research material is due to manifestation of the TRIP effect in it, caused by martensitic ...
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Characterisation and understanding of TRIP steels

Journal de Physique IV (Proceedings), 2004
The aim of this article is to understand the static and dynamic tensile behaviour of a high strength low alloy TRIP steel based on the evolution of the retained austenite ratio. Quantification of retained austenite has been done using a x-ray quantitative method treating diffraction patterns like a powder pattern.
A. Poulon-Quintin, J. B. Vogt, V. Shivanyuk, J. Foct   +3 more
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Modelling of Transformations in TRIP Steels

steel research international, 2004
Industrial processing of low‐alloy Transformation Induced Plasticity (TRIP) steels involves various stages of heat‐treating, such as Intercritical Annealing (IA) and Bainitic Isothermal Treatment (BIT), in order to produce a dispersion of retained austenite (γR) particles and bainite (αB) in a ferritic matrix (α).
Antonis I. Katsamas, Gregory N. Haidemenopoulos, Nikolaos Aravas   +2 more
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Metallographic Investigation of TRIP Steels

Materials Science Forum, 2007
Results of the X-ray diffraction (done by computer quantitative phase analysis) and metallographic miscroscopy (colour etching and computer image analysis) inspections aimed at determining the residual austenite content of modern TRIP steel sheets produced at Dunaferr.
A. Takács-Szabó, Balázs Verő, Jenő Sólyom   +2 more
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Micromechanical Modelling of TRIP Steels

steel research international, 2003
The combined thermodynamic‐micromechanical model of Fischer [1] is applied to a low‐alloyed TRIP steel with a volume fraction of 16% of retained austenite. The model is implemented in a finite element code. The mesh consists of 9 by 9 by 9 cubical elements, each representing a single grain with a random crystallographic orientation.
Tim Van Rompaey, Quentin Furnémont, Pascal J. Jacques, Thomas Pardoen, Bart Blanpain, Patrick Wollants   +5 more
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Fatigue strength of TRIP steels

Metallurgical Transactions A, 1980
Abstract : Comparison of the S-N curves of warm-extruded TRIP steels, heat treated to give two stabilities with respect to deformation-induced martensitic transformation during testing, reveals a beneficial effect of the transformation on fatigue behavior under stress control conditions.
G. B. Olson, R. Chait, M. Azrin, R. A. Gagne   +3 more
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Transformation behavior of TRIP steels

Metallurgical Transactions A, 1978
True-stress (σ), true-strain (e) and volume fraction martensite(f) were measured during both uniform and localized flow as a function of temperature on TRIP steels in both the solution-treated and warm-rolled conditions. The transformation curves(f vs e) of materials in both conditions have a sigmoidal shape at temperatures above Msσ (maximum ...
G. B. Olson, M. Azrin
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Multiscaling Effects in Trip Steels

2008
Low-alloy TRIP steels are a relatively new class of steels with excellent combinations of strength and formability, making them particularly suitable for sheet forming applications in the automotive industry. The steels possess a multiphase microstructure containing ferrite, bainite and retained austenite.
G. N. Haidemenopoulos, N. Aravas
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Powder processing of TRIP steel

Materials Science and Engineering, 1978
Abstract Pre-alloyed powder of a TRIP steel alloy was prepared by the rotating electrode process. The powder was consolidated to bar stock by extrusion at 1 800 or 2 000 °F. The bar stock was rolled at 850 °F to a series of reductions up to 80% with, and without, intermediate solutionizing.
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On the Formability of Automotive TRIP Steels

SAE Technical Paper Series, 2003
<div class="htmlview paragraph">The issue of cost and weight reduction at optimum car crash safety is a driving force behind the growing use of advanced high strength steels, particularly in Europe and Japan. Recent developments in the availability of high strength steel (HSS) sheets in North America; in particular transformation induced ...
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