Results 11 to 20 of about 658 (184)

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

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.
Hardy Mohrbacher   +6 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

Hot deformation behavior of micro-alloyed steel using processing maps developed with different constitutive equations [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2022
The hot workability of microalloyed steel was studied in the deformation temperature range of 850–1200ºC and strain rate of 0.001-100s-1. The constitutive relation of flow stress with temperature, strain rate and strain was established to construct ...
Thakur S.K., Das A.K., Jha B.K.
doaj   +1 more source

Advances in Microalloyed Steels [PDF]

open access: yesMetals, 2019
Microalloyed steels are one of the core alloy steels in the development of modern advanced high-strength steels [...]
openaire   +3 more sources

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 characterization and strengthening behavior of dual precipitation particles in CuTi microalloyed dual-phase steels

open access: yesMaterials & Design, 2019
Copper particles that directly nucleated on the interphase precipitated TiC within the ferrite matrix were found in the CuTi bearing dual-Phase (DP) steel after a multistep heat treatment process. The formation of dual precipitates within ferrite grains
Cheng-Han Li   +3 more
doaj   +1 more source

Development of Niobium Microalloyed Steel for Railway Wheel with Pearlitic Bainitic Microstructure [PDF]

open access: yesMaterials Research, 2020
Heavy haul transportation (load over 30 tons/axle), as well as the axle load, has been more and more used in Brazil and worldwide. The stress generated in the wheel-rail contact with loads up to 30 tons/axle is around 760 MPa, which causes premature wear
Domingos José Minicucci   +4 more
doaj   +1 more source

Influence of Niobium on the Beginning of the Plastic Flow of Material during Cold Deformation

open access: yesThe Scientific World Journal, 2013
Investigations were conducted on low-carbon steel and the steel with same chemical composition with addition of microalloying element niobium. While tensile testing was carried out, the thermographic measurement was tacking place simultaneously.
Stoja Rešković, Ivan Jandrlić
doaj   +1 more source

Microstructure of Microalloyed Linepipe Steels [PDF]

open access: yesVolume 1: Codes, Standards and Regulations; Design and Constructions; Environmental; GIS/Database Development; Innovative Projects and Emerging Issues, 2000
The aim of this study was to characterize the microstructure of microalloyed linepipe steels. The steels investigated were X70 (0.04 wt% C - 0.02 wt% Ti - 0.07 wt% Nb) and X80 (0.04 wt% C - 0.025 wt% Ti - 0.09 wt% Nb) steels, where the numbers refer to their specified minimum yield strength (SMYS) in ksi.
Udit Sharma, Douglas G. Ivey
openaire   +1 more source

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