acicular ferrite
J. Braz. Soc. Mech. Sci. & Eng. vol.26 número1
... proeutectoide ferrite, polygonal ferrite, aligned and non-aligned side plate ferrite, ferrite-carbide aggregate and acicular ferrite (IIW, ...
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Caracterização microestrutural de um aço baixo carbono e baixos teores de elementos de ligas com estrutura contento ferrita acicular
... containing acicular ferrite, obtained by grain growth treatment and, subsequently, subject to various route of isothermal ...of acicular ferrite, promoting excellent combination of mechanical ...
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REPOSITORIO INSTITUCIONAL DA UFOP: Características microestruturais e mecânicas de juntas soldadas em multipasses pelo processo GMAW de um aço API 5L X65Q.
... In the welding process for assembling ducts from seamless pipe, the use of narrow grooves is replacing the groove V. For these materials still no detailed study of the profile of mechanical properties along the weld ...
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Influência do polímero utilizado como aglomerante em eletrodos revestidos básicos sobre a formação de ferrita acicular no metal de solda
... Shielded metal arc welding were one of the most important processes along part of the twenty century. Nowadays, where there are most productive welding processes, the basic covered electrodes are largely used at high ...
146
Mat. Res. vol.18 número1
... an acicular ferrite microstructure steel named steel 1 and a ferrite-bainite dual-phase microstructure steel named steel ...a ferrite-bainite dual-phase microstructure steel named steel ...
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Unique microstructure and excellent mechanical properties of ADI
... fine acicular ferrite and stable, high carbon ...non-parallel acicular structures, which exist mainly in the last solidified area, and (2) the thin films of austenite between the individual ...
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Deformation behavior of two continuously cooled vanadium microalloyed steels at liquid nitrogen temperature
... Vanadium-nitride particles are favorable sites for nucleation of acicular ferrite [3,18,19]. Nitrogen avail- able after TiN precipitation during solidification of the steels is available for VN ...
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Soldag. insp. vol.15 número4
... of acicular ferrite (AF) in the microstructure of weld bead, in a speciied range of values, increase considerably the toughness of welded ...the acicular ferrite quantity in the deposited ...
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Mat. Res. vol.20 número3
... high cooling rate and low coiling temperature/interrupted cooling temperature in microalloyed steels helps to produce a ine bainitic/acicular ferrite microstructure, making higher strength steels possible. ...
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Mat. Res. vol.17 suppl.1
... polygonal ferrite and pearlite in both steels, with smaller grain size and the presence of a small quantity of bainite in the X70 ...where acicular ferrite/bainite are ...
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Influência do uso de PTFE como aglomerante em eletrodos revestidos básicos sobre a formação de ferrita acicular no metal de solda.
... Abstract: Weld metals obtained from covered electrodes agglomerated with polytetraluorethylene (PTFE) presented ultra low diffusible hydrogen content and appreciate quantities of acicular ferrite. This ...
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Functionalization of zinc ferrite nanoparticles: influence of modification procedure on colloidal stability
... zinc ferrite nanoparticles, ZF and zinc ferrite nanoparticles modi- fied during and after synthesis are shown in ...zinc ferrite surfaces), could lead to the steric effect around the particles that ...
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A comparison study of polymer/cobalt ferrite nano-composites synthesized by mechanical alloying route
... Figure 2 shows the XRD patterns of PEG/CF1 and PVA/CF nano-composites samples. PEG is highly crystalline, having a well-defined crystal structure (Fig. 2a), with strong reflection peaks at 19.23° and 23.35°, and weak ...
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Effect of Temperature on the Structural and Magnetic Properties of NixCo1 – xFe2O4 Nanoparticles
... analysis showed that the received rings are single phase with the cubic structure of spinel space group Fd3m. Dependence of the initial permeability from the degree of substitution of cobalt cations on nickel cations is ...
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Paleoenvironmental Characterization of a High-Mountain Environment in the Atlantic Forest in Southeastern Brazil
... Three phytolith indexes for environmental and taxonomic interpretations were calculated from the assemblies identified. The first was the tree coverage index (D/P) (Alexandre et al., 1997), based on the ratio between ...
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Hydration Characteristics of Tetracalcium Alumino-Ferrite Phase in the presence Calcium Carbonate
... present in the clinker to form calcium carboaluminates (ferrite) hydraes [1,2]. it was found that calcium carbo- nate may partially substitute gypsum in portland cement, this is due to the low cost of the ...
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Braz. J. Phys. vol.31 número3
... Birefringene n and normalized birefringene n= (inset) of opper ferrite samples as a funtion of the applied. magneti eld[r] ...
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Lumbriclymene interstricta comb. nov. with a taxonomic key and a catalogue for all species of Lumbriclymene (Maldanidae, Polychaeta)
... with acicular spines; pygidium cylindrical, with elliptical or tapered distal end, sometimes ventrally flattened, with many transversal striae; anus terminal, subterminal, or dorsal, with short anal papillae (A ...
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Preparation and Characterization of Nickel ferrite Nanoparticles via Co-precipitation Method
... Nickel ferrite is one of the multifaceted and technologically important soft ferrite materials because of its typical ferrimagnetic properties, lower eddy current losses, low conductivity and high ...
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Mat. Res. vol.11 número1
... energy with holding time may therefore be as a result of the finely dispersed martensite globules in the ferrite matrix. The influence of this morphology must have taken pre eminence over the negative effect of ...
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