Results 21 to 30 of about 1,034 (181)

Influence of microstructure on fatigue property of ultra high-strength steels

open access: yesFracture and Structural Integrity, 2019
Ultra-high-strength steels (with tensile strength higher than 980 MPa) are widely used in automobile manufacturing owing to their lightweight that contributes to fuel efficiency.
Kanji OKUDA   +4 more
doaj   +3 more sources

Texture Evolution of Bainitic Steels Processed from Nickel Lateritic Ores: A Neutron-Diffraction Investigation [PDF]

open access: yesE3S Web of Conferences
This study investigated the texture evolution of bainitic steel samples processed from lateritic nickel ores with varying heat treatment times. The samples were austenitized, air-cooled, and subjected to bainitic heat treatment at 532°C for 15 and 30 ...
Pramono Andika W.   +5 more
doaj   +1 more source

Enhanced Strength and Ductility by Introducing Nanobainitic Ferrite in Bainitic Steel Used in Sports Equipment

open access: yesMetals, 2021
The mechanical properties of carbide-free bainitic steels used in sports equipment were investigated. The nanobainitic ferrite was introduced in bainitic steel to enhance the stability of blocky retained austenite (RA).
Han Meng   +4 more
doaj   +1 more source

An Integrated NLP‐ML Framework for Property Prediction and Design of Steels

open access: yesAdvanced Science, EarlyView.
This study presents a data‐driven framework that uses language‐processing techniques to interpret steel processing descriptions and machine‐learning models to predict mechanical properties. By organising complex process histories into meaningful groups and enabling rapid property forecasts, the work supports faster, more informed steel design through ...
Kiran Devraju   +5 more
wiley   +1 more source

Shear-mode Crack Initiation Behavior in the Martensitic and Bainitic Microstructures

open access: yesMATEC Web of Conferences, 2018
Fully reversed torsional fatigue tests were conducted to elucidate the behaviour of shear-mode crack initiation and propagation in one martensitic and two bainitic steels.
Wada Kentaro   +4 more
doaj   +1 more source

Physics‐Informed Machine Learning for Sustainable Alloy Design: Toward a Recyclable Unified Q&P Steel

open access: yesAdvanced Science, EarlyView.
A physics‐informed property‐bridging framework links high‐throughput hardness screening to tensile performance in quenching and partitioning steels. By transferring metallurgically guided representations across properties, a single alloy composition is designed to achieve multiple strength grades through heat‐treatment tuning alone, offering a ...
Xiaolu Wei   +7 more
wiley   +1 more source

Carbon rejection triggered by lattice contraction at low-temperature making nano-bainitic steel toughener

open access: yesMaterials Research Letters
In the steel industry, enhancing the toughness of the material often reduces strength. This study employs shallow cryogenic treatment on high-carbon nano-bainitic steel, inducing lattice shrinkage via cryogenic contraction stress.
Xiaojun Gao   +7 more
doaj   +1 more source

Alteration of Phase Transformation Behavior and Prior Austenite Grain Structure Due to Elevated Tramp Element Concentrations in a Hypoeutectoid Steel

open access: yessteel research international, EarlyView.
The phase transformation behavior of a hypoeutectoid steel is studied in comparison with alloys containing higher concentrations of tramp elements, simulating high recycling rates. The examination of microstructures reveals that the tramp elements facilitate the formation of displacive phases along with retained austenite.
Lukas Hatzenbichler   +7 more
wiley   +1 more source

Influence of niobium microalloying on the thermal stability of medium-carbon carbide-free bainitic steel

open access: yesJournal of Materials Research and Technology, 2021
This paper investigates the influence of niobium on the thermal stability of ultra-fine bainite microstructures and their mechanical properties by means of an isothermal transformation at 340 °C, followed by tempering in the range of 200–700 °C for two ...
Xinpan Yu   +5 more
doaj   +1 more source

Alloy Qualification for Producing Quench and Tempered Plate Steels with Extra‐Heavy Gage

open access: yessteel research international, EarlyView.
This study develops alloy concepts for ultraheavy steel plates (>100 mm) with ≥690 MPa yield strength. Through dilatometry and Jominy testing, the effects of Mo, Ni, and B on hardenability are quantified. A synergy between 0.5% Mo and 0.5%–1.0% Ni ensures core strength at low cooling rates, while boron microalloying suppresses ferrite and promotes ...
Xabier Azpeitia   +5 more
wiley   +1 more source

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