Results 1 to 10 of about 113,833 (154)

Study on the Corrosion Behavior of Rare Earth / Niobium Microalloyed Steels in Marine Atmospheric Environments [PDF]

open access: yesCailiao Baohu, 2021
For providing the data support to design and develop microalloyzed steels, the corrosion behavior of rare earth microalloyed steels and niobium microalloyed steels in marine atmospheric environments was investigated by the means of surface microstructure
ZHANG Xian, HU Hong-yi, GONG Li, WANG Zhi-yuan, PENG Ding, ZHU Chang-jin, WEI Wen-zhui, WU Kai-ming
doaj   +1 more source

Tempered Bainite and Martensite Embrittlement in Microalloyed Steel for Forged Railroad Wheel to Heavy Haul Application [PDF]

open access: yesMaterials Research, 2021
This research shows two new microalloyed steels with niobium (Nb) for railroad wheels (Nb1 and Nb2) applied on heavy haul transportation (load over 30 tons/axle).
Domingos José Minicucci   +5 more
doaj   +1 more source

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

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

Effects of Sn and Sb on the Hot Ductility of Nb+Ti Microalloyed Steels

open access: yesMetals, 2020
Referencing the composition of a typical Nb+Ti microalloyed steel (Q345B), two kinds of steels, one microalloyed with Sn and Sb, and the other one only microalloyed with Sb were designed to study the effects of Sn and Sb on the hot ductility of Nb+Ti ...
Chunyu He   +4 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

Low-Carbon Ti-Mo Microalloyed Hot Rolled Steels: Special Features of the Formation of the Structural State and Mechanical Properties

open access: yesMetals, 2021
Low-carbon Ti-Mo microalloyed steels represent a new generation of high strength steels for automobile sheet. Excellent indicators of difficult-to-combine technological, strength, and other service properties are achieved due to the superposition of a ...
Alexander Zaitsev, Nataliya Arutyunyan
doaj   +1 more source

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