Results 141 to 150 of about 658 (184)

Microalloy steels – the beginning

Materials Science and Technology, 2009
Although steels containing small amounts of vanadium or titanium had long been available, the rapid development and exploitation of microalloy steels was initiated by the recognition of the advantages of adding a small amount of niobium to C–Mn steels.
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Microalloyed Steel Bars and Forgings

JOM, 1986
This paper examines microalloyed steels—steels which develop their properties in the as-received condition without requiring further heat treatment, such as quenching and tempering. Microalloyed steel bars and forgings offer a clear cut potential for cost reduction and energy savings.
R. S. Cline, W. E. Heitmann, D. Bhattacharya   +2 more
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Microalloying of steel with vanadium and nitrogen

Steel in Translation, 2014
The microalloying of steel with vanadium and nitrogen is experimentally studied. The goal is to compare the results when steel is alloyed with standard ferrovanadium and vanadium converter slag (with gaseous nitrogen injection) and with nitrided ferrovanadium.
O. I. Nokhrina, I. D. Rozhikhina, V. I. Dmitrienko, M. A. Golodova, Yu. A. Osipova   +4 more
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Exafs investigation of microalloyed steel

Scripta Metallurgica, 1984
Pour ameliorer la composition et la fabrication des aciers microallies on a besoin de methodes precises pour mesurer les quantites d'elements de microalliage presents en solution solide ou sous forme de fins precipites et pour determiner la structure de ces precipites.
G.P. Huffman, F.E. Huggins, L.J. Cuddy, F.W. Lytle, R.B. Greegor   +4 more
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Study of cast microalloyed steels

Materials Science and Technology, 2003
AbstractImproved grades of cast steels were prepared by microalloying C–Mn–Cr steels (0.15–0.22C, wt-%) with V (0.1)+Ti (0.01) or V (0.11)+Nb (0.034)+Ti (0.01) combinations. When quenched and tempered an ultimate tensile strength (UTS) of the order of 784–1078 MPa (80–110 kg mm2) and an elongation ranging from 10 to 35% were achieved.
B.D. Jana, A.K. Chakrabarti, K.K. Ray
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Niobium microalloying in rail steels

Materials Science and Technology, 2017
Rail steels rely primarily for their properties on wear and rolling-contact-fatigue resistance. These properties, together with toughness, can be optimised by implementing thermo-mechanical processing during rail manufacturing, assisted by controlled additions of strong carbide-forming microalloying elements.
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Impact Properties of Microalloyed Steel

2000
Impact properties of two grades of microalloyed steel (Re>500MPa), work hardened by static and dynamic uniaxial tension are presented. Properties are analysed by impact testing at very high impact loading rate (v=785m/s) and by fatigue testing at ultrasonic, very high frequency (20kHz).
Buršak, M., Bokuvka, O., Mamuzić, Ilija, Michel, J.   +3 more
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Compositional evolution of microalloy carbonitrides in a Mo-bearing microalloyed steel

Scripta Materialia, 2013
Molybdenum is known to affect microalloy precipitate evolution during processing in ferrite and austenite, but a unified explanation of the role of Mo in precipitate evolution is still lacking. Experiments and thermodynamic calculations indicate that Mo is incorporated into (Nb,Mo)(C,N) precipitates both in the hot-rolled condition and after reheating ...
Enloe, CM, Findley, KO, Parish, CM, Miller, MK, De Cooman, BC, Speer, JG   +5 more
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Microstructural Control in Microalloyed Steels

1979
High-strength low-alloy (HSLA) steels constitute a classic metallurgical development in which alloying additions and thermomechanical processing have been brought together effectively to attain desired combinations of engineering properties through microstructural control.
M Cohen, SS Hansen
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Ductility of Microalloyed Steels during Hot Deformation

Materials Science Forum, 2010
The ductility behaviour experienced by steels for linepipe (LP) applications in a temperature range generally from 700°C to 1200°C is a widely studied subject in steel research, especially for its implication on cracking during continuous casting and rolling.
A. Mannucci, E. Anelli, M. Armengol, VEDANI, MAURIZIO   +3 more
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