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The Effect of Vanadium Content on Microstructure and

The Effect of Vanadium Content on Microstructure and Applications:

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The influence of vanadium-microalloying on the weldability

This 'vanadium-effect' on transformed microstructure appears to be able to be active in both HAZ and weld metal microstructure development.Indeed the author has seen it in several instances where it can be contrasted with a coarse type of microstructure that typically develops in its absence.The effect of vanadium on microstructure and mechanical In this paper,the microstructure and mechanical properties of FeCrMoVC high-speed steels fabricated using a rapid solidification technique were investigated.It was found that the alloy with free V content exhibited ultra-high fracture strength of 4900 MPa and large compression strain of 31.8%,but a lower yield strength of 1100 MPa.In contrast,with V content to 4 at%,the yield strength The effect of titanium and reheating temperature on the Volume Content Graphics Metrics Export Citation NASA/ADS.The effect of titanium and reheating temperature on the microstructure and strength of plain-carbon,vanadium- and niobium-microalloyed steels Wang,Shyi-Chin; Abstract.Publication Journal of Materials Science

The Effects of Vanadium,Niobium,Titanium and

the microstructure,and particularly the precipitates present during the TSDR process at several stages in the process route; after casting,after equalisation,after the fourth rolling pass and in the nal coil.The investigation was car-ried out using a series of vanadium containing microalloyed steels and the observed microstructure and The Effects of Carbon,Boron and Vanadium on the goal of this study is to gain understanding into how carbon,boron,and vanadium effect the volume fraction and morphology of various microstructural constituents,ultimately leading to a high wear resistance.Utilizing the SEM and XRD,various alloy microstructures will beThe Effect of Vanadium and Other Microalloying ElementsModern high-strength low-alloy (HSLA) steels,used extensively in commercial products such as high-strength linepipe and structural construction components,are coiled at temperatures ranging from 400-600 The Effect of Vanadium Content on Microstructure and#176;C.The microstructures produced are bainitic,often do not contain iron carbides,and contain microalloying additions such as vanadium (V).This study attempted to characterize the

The Effect of Vanadium Content on Microstructure and

Apr 13,2018 The Effect of Vanadium Content on Microstructure and#0183;The aim of this research was to examine the influence of vanadium on the structure and impact toughness of the forged high alloy steel X96CrMo12-1.It is known that vanadium affects the process of solidification of this alloy by narrowing the temperature interval of crystallization.Vanadium,as an alloying element,moves liquids and solidus lines toward higher temperatures,approximately for THE INFLUENCE OF THE VANADIUM CONTENT ONThe as cast microstructure of this steel consists of primary austenite dendrites,which can be partia-lly or completely transformed.It is expected that with the increasing of the vanadium content,the alloy hardness and wear resistance decre-ases and the impact toughness increases.The basic problem with these steels is low im-pact toughness.Subtask 12G1 Effects of dynamically charged helium on Subtask 12G1 Effects of dynamically charged helium on swelling and microstructure of vanadium-base alloys

Some results are removed in response to a notice of local law requirement.For more information,please see here.Previous123456NextLearn more(PDF) Effect of Cooling Paths on Microstructure and

These investigations reveal that vanadium additions can obviously affect the microstructure and mechanical properties of microalloyed steels.However,for the microalloyed steel with approx.0.054wt%V,0.014wt%Ti and 0.0054wt%N,based on ultra fast cooling,the effects of cooling paths on microstructure and mechanical properties of V bearing microalloyed steel were not investigatedIronchromiumcarbonvanadium white cast irons The as-cast microstructure of FeCrCV white irons consists of M7C3 and vanadium rich M6C5 carbides in austenitic matrix.Vanadium changed the microstructure parameters of phase present in the structure of these alloys,including volume fraction,size and mor-phology.The degree of martensitic transformation is also dependent on the

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We would like to show you a description here but the site wont allow us.Fluxtrol Influence of Vanadium Microalloying on the The microstructure of the case/core transition region can consist of a broad range of constituents depending on the processing parameters,exact radial location,core (i.e.,prior or starting) microstructure,and alloy content.Figure 1 Macro-etched cross-section showing the microstructural regions of an induction-hardened shaft.Effects of vanadium on the microstructure and mechanical The effects of vanadium on the hardenability,microstructures and mechanical properties of 40CrNiMoV steel were investigated after stabilizing nitrogen with aluminum by using an electron

Effects of pulse frequency on the microstructure

Xiang Dong,Zhiming Wu,Yadong Jiang,Xiangdong Xu,He Yu,Deen Gu,and Tao Wang Effects of pulse frequency on the microstructure,composition and optical properties of pulsed dc reactively sputtered vanadium oxide thin films ,Proc.SPIE 9284,7th International Symposium on Advanced Optical Manufacturing and Testing Technologies Effects of microstructure and nonstoichiometry on Vanadium dioxide is an interesting material to study effects of film microstructure and nonstoichiometry on electrical properties because its phase transition makes it possible to investigate electrical behavior both in a semiconducting phase and in a metallic phase.Effects of Vanadium on Microstructure and Properties ofEffects of vanadium on microstructure,hardness and wear resistance of the alloy were studied with SEM,OM,hardness and wear test.The results show that Fe-V powders content affects welding crack number,which increasing quickly at 0-2%(wt,as fellow),decreasing slowly at 2

Effects of Vanadium Addition on Microstructure and

New hardfacing coatings with different vanadium (V) additions were prepared by surfacing technology.The microstructures of the hardfacing coatings were analyzed by field emission scanning electron microscope equipped with energy dispersive X-ray spectrometry and examined by transmission electron microscope.The hardness and wear resistances of the hardfacing coatings were measured.Effects of Cr and V additions on the microstructure and The effects of chromium and vanadium additions on the microstructure,hardness and wear resistance of high-vanadium alloy steel (containing 510 wt-% V and 210 wt-% Cr) were studied by means of optical microscopy,scanning electron microscope (SEM),X-ray diffraction (XRD),energy dispersive spectrometer (EDS),Vickers hardness and Rockwell-hardness tester M-200 ring block wear tester.Effect of vanadium on microstructure and mechanical Effect of vanadium on microstructure and mechanical properties of Fe1.8Ni0.5Mo2Cu0.45C PM steel Zhihao Tang College of Material Science and Technology,Nanjing University of Aeronautics and Astronautics,Nanjing,Peoples Republic of China; Jiangsu Automobile Powder Metallurgy Engineering Technology Research Center,Changshu

Effect of vanadium microaddition on the

Effect of vanadium microaddition on the microstructure and mechanical properties of casing pipes after normalizing process M.Kiczor a,*,P.Przegraek b,A.Grajcar c a Rurexpol Alchemia S.A.,ul.Trochimowskiego 27,42-200 Czstochowa,Poland b ArcelorMittal Poland S.A.,Al.J.Pisudskiego 92,41-308 Dbrowa G The Effect of Vanadium Content on Microstructure and#243;rnicza,PolandEffect of blending and emulsification on thermal behavior Effect of blending and emulsification on thermal behavior,solid fat content,and microstructure properties of palm oil-based margarine fats J Food Sci.Jan-Feb 2011;76(1):C21-30.doi 10.1111/j.1750-3841.2010.01922.x.Epub 2010 Dec 1.Authors S Saadi 1 Effect of Vanadium microalloying on the HAZ microstructure Raising the level of vanadium to 0.11% caused a decrease in ICCGHAZ toughness.Steel C-Mn-Nb exhibited a greater degradation of impact toughness after the intercritical cycles.The presence of M-A constituents was the dominant factor in determining the toughness of the ICCGHAZs.

Effect of Vanadium Addition on Reliability and

Dec 21,2013 The Effect of Vanadium Content on Microstructure and#0183;The vanadium distribution in multilayer ceramic capacitors (MLCCs),sintered under a reducing atmosphere,was investigated using scanning transmission electron microscopyelectron energy loss spectroscopy (STEMEELS),and insulation resistance degradation was analyzed using impedance spectroscopy in highly accelerated lifetime tests to clarify the effects of vanadium onEffect of Vanadium Addition at a Rate of 0.1% on the The specimens for microstructure,microhardness and compression tests were machined.The mechanical tests were performed to investigate the effect of vanadium addition and the effect of upsetting process.It was found that the 0.1% vanadium addition resulted in grainEffect of Niobium and Vanadium on the MicrostructureThe microalloy additions had comparatively little effect on the microstructure except when low levels of niobium ( The Effect of Vanadium Content on Microstructure andlt;0.02 percent) were added to lean alloy (1.2Mn) deposits,when a marked increase in acicular ferrite content occurred.

Effect of Niobium and Vanadium Additions on the As-Cast

4.2.Effect of Vanadium on the Microstructure.Vanadium affects the solidification process and changes the transformation characteristics of austenite in high chromium white cast iron.With an increase of vanadium content the alloy composition approaches the eutectic composition in the quaternary FeCrCV system,causing a decrease of Effect of Dilute Alloy Additions of Molybdenum,Niobium The vanadium alloy was observed to be more sensitive to heat treatment than the molybdenum and niobium alloys.For all three alloys,corrosion performance superior to Zircaloy-4 could be achieved by an optimum aging treatment.The details of the relationship between heat-treatment,microstructure,and corrosion response are presented and discussed.Effect of Dilute Alloy Additions of Molybdenum,Niobium The effect of alloy content and processing was monitored by characterizing the microstructure of the material.In general,quenching from the beta phase formed martensite for all three alloys with essentially all alloy additions remaining in solution.Subsequent working and aging treatments resulted in precipitation and precipitate growth.

Effect of Chromium on Solidification Microstructure and

The effect of chromium on the phase diagrams and solidification microstructure was investigated by OM,SEM,EDS,XRD,DSC and wear resistance test.The results show that the changes of eutectic transition points and phase region area are tiny with the increase of chromium content.Effect of B2O3 Content on the Sintering Basic The sintering basic characteristics of iron ore play a key role in the process of sintering.In this study,the effects of B 2 O 3 on the assimilation characteristics,softening temperature,fluidity of liquid phase,compressive strength of bonding phase,and microstructure of the mixed fine powder of hematite and vanadium-titanium magnetite (H-VTM) are studied.Cited by 92Publish Year 2004Author Y.Li,J.A.Wilson,D.N.Crowther,P.S.Mitchell,A.J.Craven,T.N.BakerThe Effects of Carbon,Boron and Vanadium on the Current hardfacing alloys provide insufficient wear resistance due to either cracking or significant material wear.To increase wear resistance of steel-based hardfacing alloys,the effects of composition on microstructure and hardness were investigated in a progression of alloys.Initially,seven new alloys were prepared varying the carbon-boron ratio with the total constant at 3 wt%.

Cited by 74Publish Year 1989Author Eiji Kusano,Jeremy A.TheilThe weldability of vanadium-microalloyed steels (November

The current information in the literature that might aid the understanding of the 'vanadium-effect' is sparse but an early brief paper by Uchino et al and Hasegawa et al looking at mechanisms of ferrite grain refinement in normalised high niobium vanadium steels,suggests that it might arise from the effect of interphase precipitation of VN at the gamma alpha interface,preventing ferrite grain growth asCited by 38Publish Year 2017Author Dinc Erdeniz,Wahaz Nasim,Jahanzaib Malik,Aaron R.Yost,Sally Park,Anthony De Luca,Nhon Q.Vo,(PDF) Effect of vanadium and titanium modification on the Effect of vanadium and titanium modification on the microstructure and mechanical properties of a microalloyed HSLA steel precipitation strengthening in normalized grades is most effectively exploited by controlling the vanadium content,as the vanadium carbonitrides go into solution in austenite at normalizing temperatures and readily re Cited by 1Publish Year 2011Author Y.Li,D.Milbourn,Thomas BakerThe effects of vanadium,niobium,titanium and zirconium The evolution of precipitation and microstructure during a simulation of the thin slab direct rolling process,in six vanadium based,low carbon,steels with V,V-N,V-Ti-N,V-Nb,V-Nb-Ti and V-Zr additions was studied by optical microscopy,analytical transmission electron microscopy (TEM),energy dispersive X-ray analysis (EDAX) and parallel electron energy loss spectroscopy (PEELS).

Cited by 10Publish Year 2000Author GP Sabol,RJ Comstock,UP NayakEffect of Tempering Temperature after Thermo-Mechanical

The number of fine vanadium carbides increased as well.However,as the tempering temperature increased to 700 The Effect of Vanadium Content on Microstructure and#176;C,the microstructure of T700 steel completely converted to massive ferrite and the grain size became larger.Author Xiang Dong,Zhiming Wu,Yadong Jiang,Xiangdong Xu,He Yu,Deen Gu,Tao WangPublish Year 2014The effect of impurity on the deformation and fracture @article{osti_186807,title = {The effect of impurity on the deformation and fracture behavior in vanadium-20 wt.% titanium alloys},author = {Lyu,D Y and Bloomer,T E and Uenal,O and Kameda,J},abstractNote = {Vanadium alloys are considered as candidate materials for fusion nuclear reactors because of their low activation.It is well recognized that the mechanical properties of solid Author Vukoje Vukojevi,Aleksandar Sedmak,Srdjan Jovi,Blagoje Nedeljkovi,Ivo BlaiPublish Year 2019Effect of Niobium and Vanadium on the Microstructure and Effect of Niobium and Vanadium on the Microstructure and Mechanical Properties of Submerged-Arc Welds Produced Under a Basic Flux in Carbon-Manganese Steels..RIS For RefWorks,EndNote,ProCite,Reference Manager,Zoteo,and many others..DOCX For Microsoft Word.Two-pass tandem submerged-arc welds have been deposited in 25-mm-thick,silicon-killed,aluminum-treated steel plate

Author Kyle RafaPublish Year 2010Wpyw wanadu na proces krystalizacji,mikrostruktur i

In the microstructure of the pressure cast Al-Si alloys,which contain vanadium,new phases may form,which did not occur in the Al-Si alloys without V.These are probably intermetallic phases containing vanadium.The size of these precipitates increases with the increase of the vanadium content in the Al-Si alloy.The performed tests ofAuthor DJ Abson,Phm HartPublish Year 1983People also askWhat is the difference between vanadium and niobium?What is the difference between vanadium and niobium?It indicates some clear differences between vanadium microalloyed and niobium and niobium+vanadium microalloyed steels in that the vanadium microalloyed steels are more tolerant to increased heat input and when toughness is studied in terms of the CTOD transition temperature,interestingly an improvement in behaviour can be observed.Fig.1.The weldability of vanadium-microalloyed steels (November A Study of Effect of Vanadium on Microstructure and The presence of vanadium,as an alloying element,has various effects on the properties of cast irons.In this research,the effects of adding different amounts of vanadium,including 0,0.87,and 1.45 wt % V,on the microstructure,the formation of different phases,and the mechanical properties of the as-cast and austempered ductile iron have been investigated.

12345NextEffect of Vanadium on the Microstructure and Elevated

The relationship between the microstructure and properties was analyzed.It has been found that the amount of vanadium precipitates would be raised as vanadium content rose.Adding vanadium into the steel was effective to increase the room temperature and elevated temperature yield strength,especially increased the content of nitrogen.(PDF) The Effects of Vanadium,Niobium,Titanium and The Effect of Vanadium and Niobium on the Properties and Microstructure of the IntercriticaIly Reheated Coarse Grained Heat Affected Zone in Low Carbon Microalloyed Steels,Y.Li,D.N.Crowther results for this questionWhat is the hardness of vanadium?What is the hardness of vanadium?For hardnesses around the critical hardness level for that study (~350HV) vanadium had a decreasing effect on steel harden ability (see next section),which by itself would lead to a reduction in risk of cracking.The influence of vanadium-microalloying on the weldability

results for this questionHow does vanadium affect steel hardenability?How does vanadium affect steel hardenability?Hart and Harrison found that the influence of vanadium was of a different sign in respect of these two factors.For hardnesses around the critical hardness level for that study (~350HV) vanadium had a decreasing effect on steel hardenability (see next section),which by itself would lead to a reduction in risk of cracking.The weldability of vanadium-microalloyed steels (November results for this questionHow does vanadium affect arc welding?How does vanadium affect arc welding?One study which examined the effect of vanadium by employing submerged arc welding of pipe containing 0.16%C and 1.4%Mn,showed that vanadium additions apparently reduced the risk of solidification cracking.The influence of vanadium-microalloying on the weldability results for this questionFeedbackEffect of vanadium micro-alloying on the microstructural

Al-Er-Sc-Zr-Si alloys,strengthened by L1 2-ordered,coherent Al 3 (Er,Sc,Zr) nanoscale precipitates,can be used for automotive and aerospace applications up to 400 The Effect of Vanadium Content on Microstructure and#176;C.Vanadium,due to its small diffusivity in aluminum and its ability to form L1 2-ordered tri-aluminide precipitates,is a possible micro-alloying addition for further improving the service temperature of these alloys.

Iron-chromium-carbon-vanadium white cast irons

Vanadium changed the microstructure parameters of phase present in the structure of these alloys,including volume fraction,size and morphology.The degree of martensitic transformation also depended on the content of vanadium in the alloy. Effect of vanadium and niobium alloying elementsThis research explains the results of microstructure and mechanical property investigations of four drop forging microalloyed HSLA steels,ME Wrench 1,ME Wrench 2,ME Wrench 3,and ME Wrench 4.The purpose was to find the influence of vanadium (0.121,0.119,0.120,and 0.210%) and niobium (0.00045,0.00055,0.00052,and 0.00057%) content on the microstructures of ME Wrench 1 in comparison to Effect of vanadium and niobium alloying elements on This research explains the results of microstructure and mechanical property investigations of four drop forging microalloyed HSLA steels,ME Wrench 1,ME Wrench 2,ME Wrench 3,and ME Wrench 4.The purpose was to find the influence of vanadium (0.121,0.119,0.120,and 0.210%) and niobium (0.00045,0.00055,0.00052,and 0.00057%) content on the microstructures of ME Wrench 1 in comparison to

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