Results 21 to 30 of about 1,606 (256)

Effects of Morphology and Stability of Retained Austenite on the Ductility of TRIP-aided Bainitic Steels

open access: yesISIJ International, 2008
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
openaire   +4 more sources

Deformation behavior of retained austenite and its effect on plasticity based on in-situ EBSD analysis for transformable ferritic stainless steel

open access: yesJournal of Materials Research and Technology, 2022
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
doaj   +1 more source

THE POSSIBILITIES OF THE RETAINED AUSTENITE REDUCTION ON TOOL STEELS [PDF]

open access: yesEuropean Journal of Materials Science and Engineering, 2021
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
doaj   +1 more source

Enhancing technological prospect of nanostructured bainitic steels by the control of thermal stability of austenite

open access: yesMaterials & Design, 2021
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
doaj   +1 more source

Mechanical stability of retained austenite in tempered 9Ni steel [PDF]

open access: yesMetallurgical Transactions A, 1978
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
openaire   +3 more sources

Temperature Effects on Tensile Deformation Behavior of a Medium Manganese TRIP Steel and a Quenched and Partitioned Steel

open access: yesMetals, 2021
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
doaj   +1 more source

Effect of Intercritical Annealing Parameters and Starting Microstructure on the Microstructural Evolution and Mechanical Properties of a Medium-Mn Third Generation Advanced High Strength Steel

open access: yesMetals, 2022
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
doaj   +1 more source

Cryogenic study of the magnetic and thermal stability of retained austenite in nanostructured bainite [PDF]

open access: yesScience and Technology of Advanced Materials, 2019
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
openaire   +5 more sources

A Novel Cyclic-Quenching-ART for Stabilizing Austenite in Nb–Mo Micro-Alloyed Medium-Mn Steel

open access: yesMetals, 2019
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
doaj   +1 more source

Microstructure–Property Relationships in Thermomechanically Processed Medium-Mn Steels with High Al Content

open access: yesMetals, 2018
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
doaj   +1 more source

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