Results 21 to 30 of about 1,212,134 (224)

Microstructure and Mechanical Properties of Microalloyed Steels Containing Molybdenum [PDF]

open access: yesMaterials Research, 2022
Microalloyed steels have a maximum of 2% in alloying elements and are used in the automotive and petrochemical industries. The microstructure and mechanical properties of these steels depend on chemical composition, processing and addition of molybdenum,
Jaqueline Polezi Mazini   +4 more
doaj   +1 more source

The investigation of the effect of cu addition on the Nb-V microalloyed steel produced by powder metallurgy [PDF]

open access: yesScience of Sintering, 2022
In this work, the effect of Cu content on the microstructures, mechanical properties and electrical conductivity of Nb-V added microalloyed powder metallurgy (PM) steels were investigated.
Erden Mehmet Akif   +3 more
doaj   +1 more source

Study of the Rotary Bending Fatigue Resistance of 30MnB5, 41CrS4 and 30MnVS6 Steels

open access: yesApplied Sciences, 2022
In this study, a comparative analysis of the fatigue behavior of four types of steels, three of quenching and tempering (30MnB5 subjected to two different heat treatments and 41CrS4) and one microalloyed (30MnVS6), was carried out.
Ana Isabel García-Diez   +3 more
doaj   +1 more source

Lath martensite substructure evolution in low-carbon microalloyed steels

open access: yesJournal of Materials Science, 2022
Lath martensite substructures in as-quenched plain carbon steels exhibit dislocation-like contrast in the transmission electron microscope. More recent observations reported internal twins and nanoscale auto-tempered intra-lath carbides as additional ...
Arnab Chakraborty, R. Webster, S. Primig
semanticscholar   +1 more source

Characterization of Nanosized Carbide Precipitates in Multiple Microalloyed Press Hardening Steels

open access: yesMetals, 2023
Press hardening steel standardly relies on titanium microalloying for protecting boron from being tied up by residual nitrogen. This practice safeguards the hardenability effect of boron during die quenching.
H. Mohrbacher   +6 more
semanticscholar   +1 more source

Effect of Nb–V microalloying on low-cycle fatigue property of Fe–Mn–Al–C austenitic steel

open access: yesJournal of Materials Research and Technology, 2023
The tensile and low-cycle fatigue properties of Fe–Mn–Al–C austenitic steels without and with Nb–V microalloying are analyzed comparatively. The Nb–V microalloyed Fe–Mn–Al–C steel shows higher strength and lower elongation.
Ting Zhao   +5 more
doaj   +1 more source

MICROSTRUCTURAL EVOLUTION OF THE NORMALIZING PLATE ROLLING OF NIOBIUM MICROALLOYED STEELS [PDF]

open access: yesTecnologia em Metalurgia, Materiais e Mineração, 2015
There are concerns about the use of Nb microalloyed steels in the normalizing rolling of plate steels, as this thermomechanical treatment is finished at a temperature range where Nb(CN) precipitation can promote partial recrystallization of austenite ...
Antonio Augusto Gorni   +1 more
doaj   +1 more source

Effect of High Ti Contents on Austenite Microstructural Evolution During Hot Deformation in Low Carbon Nb Microalloyed Steels

open access: yesMetals, 2020
This work has focused on the study of hot working behavior of Ti-Nb microalloyed steels with high Ti contents (> 0.05%). The role of Nb during the hot deformation of low carbon steels is well known: it mainly retards austenite recrystallization ...
Leire García-Sesma   +2 more
doaj   +1 more source

Processes, microstructure and properties of vanadium microalloyed steels [PDF]

open access: yes, 2009
Vanadium as an important alloying element in steels was initially associated with the properties achieved following tempering. Interest in the microstructure was stimulated by the advent of transmission electron microscopes with a resolution of ~1nm ...
Baker, T.N.
core   +1 more source

Flow stress characteristics and design of innovative 3-steps multiphase control thermomechanical processing to produce ultrafine grained bulk steels

open access: yesMaterials & Design, 2020
In the present study, at first flow behavior of Nb–Ti microalloyed and interstitial-free (IF) steels was investigated to know the effects of processing parameters on their microstructural evolution.
Sumit Ghosh, Jukka Kömi, Suhrit Mula
doaj   +1 more source

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