Microalloyed steel
Effect of Boron on the Hot Ductility of Low Carbon Nb Ti Microalloyed Steel
... the steel was predicted by Thermo-Calc ...deformed steel were ...the steel. The hot ductility of the steel decreases less from 1000C with increasing boron ...Nb-Ti-microalloyed ...
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Quasi in situ analysis of geometrically necessary dislocation density in α fibre and γ fibre during static recrystallization in cold rolled low carbon Ti V bearing microalloyed steel
... Fig. 2 shows a Normal Direction Inverse Pole Figure (ND-IPF) map of the cold-rolled (as-received) state of microalloyed steel. Due to heavy deformation of 70 % with a reduction in thickness to 1 mm, two ...
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Increasing the Surface Properties of a Vanadium Microalloyed Steel by Current-Controlled Plasma Nitriding
... Mahboubi et. al. [5,6] evaluated the influence of a serial of nitriding processes identified as DC plasma nitriding, plasma immersion ion implantation and RF plasma nitriding, on the characteristics of Nb ...
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A Model Estimating the Slab Corner Transverse Cracking Susceptibility of Microalloyed Steel Based on Microstructure
... the microalloyed steel, since the pre-eutectoid film-like ferrite and alloying elements precip- itation weaken the grain boundaries of the prior austenite during bending and straightening, they have an ...
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Evolution of microstructure during double-sided friction stir welding of microalloyed steel
... Microstructures observed by analytical scanning and transmission electron microscopy in the overlap region of a double-sided friction-stir-welded microalloyed steel (EH46) were recorded in detail. They are ...
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Effect of solidification rate on microstructure evolution in dual phase microalloyed steel
... cast, microalloyed steel, of similar grade (about 260 HV in ...our steel (0.5 and 0.059 wt. %) were lower than those in the steel reported in ...our steel increased its ...the ...
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Effects of Grain Refinement on the Corrosion Behaviour of Microalloyed Steel in Sulphuric Acid Solutions
... 46 microalloyed steel in the sulphuric acid solution using the galvanostatic polarization ...46 microalloyed steel after 20 o C, 30 o C, and 40 o C, ...of steel increased by its ...
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Interaction Between Precipitation and Dynamic Recrystallization in HSLA-100 Microalloyed Steel
... The chemical composition of HSLA-100 microalloyed steel used in the present investigation is given in Table 1. The alloy was sand cast and then refined by electro slag remelting (ESR) process. Cylindrical ...
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Electrochemical and Optical Behavior of Microalloyed Steel in Near-Neutral Aqueous Solution
... This study focuses on continuing investigations previously carried out by Castrellon-Uribe et al. [5, 27]. Here, we show the experimental results of optical and electrochemical monitoring of corrosion rate in X-70 grade ...
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Effect of Cooling Rate on Phase Transformation and Microstructure of Nb Ti Microalloyed Steel
... Transverse corner cracks on the strand surface occur frequently during continuous casting of microalloyed steel and has been attracting much attention in the recent years. 13) Studies have indicated that ...
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Development of microstructure and crystallographic texture in a double-sided friction stir welded microalloyed steel
... The double-side weld was produced at TWI from two plates of EH46 microalloyed steel with 14.5 mm original thickness. The chemical composition is provided in Error! Reference source not found.. A typical ...
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On the determining role of texture in causing delamination during impact fracture of Ti and Nb-Ti microalloyed steel
... The present study was carried out on 700 MPa Ti and Nb-Ti microalloyed steels with thickness of 10 mm. The experimental steels manufactured through thermal mechanical control processing (TMCP). The rolling ...
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Austenite Grain Size Effects on Isothermal Allotriomorphic Ferrite Formation in 0 37C 1 45Mn 0 11V Microalloyed Steel
... first transformation in austenite decomposition during cooling, allotriomorphic ferrite affects indirectly the subsequent austenite phase transformations, and then its study is of vital importance. The present paper is ...
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Vanadium microalloyed steel for thin slab casting and direct rolling
... 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 ...containing ...
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Microalloyed steels
... in microalloyed steels, which had been reported to have differing effects when used with additions of niobium compared to ...0.01%Ti-Nb steel, with many smaller Nb-rich spheroids, while an EELS spectrum, ...
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Containing Vanadium and Titanium Steel Research Status and Prospects
... the steel. Performance of steel materials can be improved by adding ...vanadium-containing steel and titanium-containing steel are widely used in various ...vanadium-containing steel, ...
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Niobium-Silicon Microalloyed High Strength Structural Steel
... Nb steel was found to be slightly higher (427–456 MPa) as compared to the other two ...V microalloyed steel (419–431 MPa) and Nb+Si alloyed steel (417-445 ...micro-alloyed steel are ...
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The effect of molybdenum on interphase precipitation and microstructures in microalloyed steels containing titanium and vanadium
... Ti-microalloyed steel, but relatively little difference for the V-microalloyed ...Ti-microalloyed steel and the V-microalloyed steel must be associated with the balance ...
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Study of the Effects of Micro and Nanolayered Structures on Mechanical Response of Microalloyed Steels
... a new and rich area in which material science and engineering can develop new applications and properties by the exploitation of new production routes. Deformed or co-deformed multiphase materials, as for example ...
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The role of zirconium in microalloyed steels
... the steel, zirconium has been shown to combine with carbon and with nitrogen, resulting in pinning of austenite grain boundaries by Zr(C,N) particles ...Zr-V microalloyed steel, with zirconium ...
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