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In order to improve the ductility of carbide free bainitic microstructures, consisting of a bainitic ferrite matrix and a mixture of austenite and martensite, the TRIP effect i.e. the strain induced transformation of retained austenite to martensite, should be controlled. In this sense, the effect of the chemical composition on the mechanical stability
Caballero, Francisca G. +5 more
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The relationship of deformation behavior of retained austenite with its characteristics for transformable ferritic stainless steel by Q&P treatment was systematically investigated using in-situ EBSD analysis.
Fei Gao +4 more
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THE POSSIBILITIES OF THE RETAINED AUSTENITE REDUCTION ON TOOL STEELS [PDF]
The retained austenite induces a great deal of internal stress in the steel, often manifesting itself as cracks. Retained austenite also have a negative effect on dimensional stability of the steel components.
László TÓTH
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Excellent mechanical properties of nanostructured bainitic steels are primarily related to the ultra fine scale of their structure constituents. Typically, such structure is exhibited by suitably treated steels with high carbon and high silicon content ...
Aleksandra Królicka +2 more
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Mechanical stability of retained austenite in tempered 9Ni steel [PDF]
The behavior of the thermally stable austenite in the ductile fracture surface layer of a grain-refined and tempered 9Ni steel broken at 77 K was studied through use of Moss-bauer spectroscopy and transmission electron microscopy. Thin foils revealing the mi-crostructural profile of the fracture surface layer were prepared by electroplating a thick ...
C. K. Syn, B. Fultz, J. W. Morris
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Third-generation advanced high-strength steels (AHSS) containing metastable retained austenite are being developed for the structural components of vehicles to reduce vehicle weight and improve crash performance.
Whitney A. Poling +3 more
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A prototype medium-Mn TRIP steel (0.2 C–6 Mn–1.7 Si–0.4 Al–0.5 Cr (wt %)) with a cold-rolled tempered martensite (CR) and martensitic (M) starting microstructures was subjected to continuous galvanizing line (CGL) compatible heat treatments. It was found
Kazi M. H. Bhadhon +3 more
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Cryogenic study of the magnetic and thermal stability of retained austenite in nanostructured bainite [PDF]
First magnetic characterization of a recently developed generation of carbide free bainitic steels, known as Nanobain, has been performed. Stability of its retained austenite at cryogenic temperatures has been studied by means of X-ray diffraction, microscopy, dilatometry and magnetic measurements.
Argüelles Vélez, María Arantzazu +3 more
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A Novel Cyclic-Quenching-ART for Stabilizing Austenite in Nb–Mo Micro-Alloyed Medium-Mn Steel
In the context of obtaining an excellent elongation and tensile-strength combination in the third generation of advanced high strength steel, we emphasized the practical significance of adjusting the retained austenite fraction and stability in medium-Mn
Chunquan Liu +3 more
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Detailed studies on microstructure⁻property relationships of thermomechanically processed medium-Mn steels with various manganese contents were carried out. Microscopic techniques of different resolution (LM, SEM, TEM) and X-Ray diffraction methods
Adam Grajcar +2 more
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