Ultrahigh strength ductile microalloyed steel with a very low yield ratio developed by quenching and partitioning heat treatment [PDF]
In this study, a microalloyed low carbon steel was subjected to quenching and partitioning (Q&P) heat treatment processes. The primary ferrite-pearlite microstructure of the steel was transformed into a bainitic microstructure containing interlath and ...
S. Fida Hassan, H. AlWadei
doaj +2 more sources
Effect of solidification rate on microstructure evolution in dual phase microalloyed steel [PDF]
In steels the dependence of ambient temperature microstructure and mechanical properties on solidification rate is not well reported. In this work we investigate the microstructure and hardness evolution for a low C low Mn NbTi-microalloyed steel ...
Davis, Claire +3 more
core +2 more sources
Control of the Austenite recrystallization in Niobium Microalloyed steels [PDF]
The use of heavy gauge steel sheets for structural applications very often requires a combination of high yield strength and adequate toughness. The most cost effective way to realize a high yield strength and a high ductility in a low alloyed steel is ...
Houbaert, Yvan +4 more
core +5 more sources
Hot deformation behavior of micro-alloyed steel using processing maps developed with different constitutive equations [PDF]
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
Processes, microstructure and properties of vanadium microalloyed steels [PDF]
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
Advances in Microalloyed Steels [PDF]
Microalloyed steels are one of the core alloy steels in the development of modern advanced high-strength steels [...]
openaire +3 more sources
Development of Niobium Microalloyed Steel for Railway Wheel with Pearlitic Bainitic Microstructure [PDF]
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
Tempered Bainite and Martensite Embrittlement in Microalloyed Steel for Forged Railroad Wheel to Heavy Haul Application [PDF]
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
Vanadium microalloyed steel for thin slab casting and direct rolling [PDF]
Vanadium microalloyed steels with high yield strength (»600 MPa), good toughness and ductility have been successfully produced in commercial thin slab casting plants employing direct rolling after casting.
Baker, T.N., Li, Y., Mitchell, P.S.
core +2 more sources
Dispersion strengthening in vanadium microalloyed steels processed by simulated thin slab casting and direct charging: Part I - Processing parameters, mechanical properties and microstructure [PDF]
A study simulating thin slab continuous casting followed by direct charging into an equalisation furnace has been undertaken based on six low carbon (0.06wt-%) vanadium microalloyed steels.
Baker, T.N. +5 more
core +1 more source

