Results 31 to 40 of about 4,685 (222)

Critical assessment 29: TRIP-aided bainitic ferrite steels [PDF]

open access: yesMaterials Science and Technology, 2017
Transformation-induced plasticity (TRIP)-aided bainitic ferrite steels developed for automotive applications have attractive mechanical properties such as ductility, formability, toughness, fatigue strength and delayed fracture strength. These mechanical properties are principally associated with a ductile lath-structure matrix and the strain-induced ...
Koh-ichi Sugimoto   +2 more
openaire   +1 more source

Retained Austenite Destabilization during Tempering of Low-Temperature Bainite

open access: yesApplied Sciences, 2020
The thermal stability of nanostructured microstructures consisting of a mixture of bainitic ferrite and carbon-enriched retained austenite has been studied in two steels containing 0.6 C (wt %) by tempering cycles of 1 h at temperatures ranging from 450 ...
Victor Ruiz-Jimenez   +5 more
doaj   +1 more source

Introducing ultrafine ferrite in low-temperature bainitic steel through a novel process for simultaneously improving strength and toughness

open access: yesJournal of Materials Research and Technology, 2021
A novel process is proposed to introduce ultrafine ferrite in a medium-carbon high-silicon steel that possesses low-temperature bainite. This process is based on the intercritical annealing of the cold-rolled tempered troostite and subsequent ...
Ting Zhao   +4 more
doaj   +1 more source

Development of a process envelope for friction stir welding of DH36 steel : a step change [PDF]

open access: yes, 2014
Friction stir welding of steel presents an array of advantages across many industrial sectors compared to conventional fusion welding techniques. However, the fundamental knowledge of the friction stir welding process in relation to steel remains ...
Cater, Stephen   +3 more
core   +1 more source

Intragranular ferrite morphologies in medium carbon vanadium-microalloyed steel [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2013
The aim of this work was to determine TTT diagram of medium carbon V-N micro-alloyed steel with emphasis on the development of intragranular ferrite morphologies.
Fadel A.   +3 more
doaj   +1 more source

Residual stress, phase, microstructure and mechanical property studies of ultrafine bainitic steel through laser shock peening [PDF]

open access: yes, 2019
The aimed study proposes laser shock peening without a coating of high strength ultrafine bainitic steel to mitigating the fatigue failures for automotive and structural engineering applications.
Prabhakaran , Subramanian   +3 more
core   +1 more source

Slow Bainite: an Opportunity to Determine the Carbon Content of the Bainitic Ferrite during Growth

open access: yesSolid State Phenomena, 2011
The amount of carbon in solid solution in bainitic ferrite at the early stage of transformation has been directly determined by atom probe tomography at 200 °C, taking advantage of the extremely slow transformation kinetics of a novel nanocrystalline steel.
Francisca G. Caballero   +2 more
openaire   +2 more sources

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

Effect of the morphology of the martensite-austenite phase on fracture of the weld heat affected zone in vanadium and niobium microalloyed steels [PDF]

open access: yes, 2010
In multipass welding, the intercritically reheated coarse grained heat affected zone demonstrates the worst toughness in welded joint, since it contains a high-carbon martensite with some retained austenite, known as M-A phase, which is brittle and ...
Baker, T.N., Li, Y.
core   +1 more source

On the spheroidized carbide dissolution and elemental partitioning in a high carbon bearing steel 100Cr6

open access: yes, 2013
We report on the characterization of high carbon bearing steel 100Cr6 using electron microscopy and atom probe tomography in combination with multi-component diffusion simulations (DICTRA).
Bleck, Wolfgang   +5 more
core   +1 more source

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