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Showing 1 to 16 of 16 for “"peritectic"”.
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PERITECTIC BEHAVIOR DETECTION AND PREDICTION IN Fe-C-Si-Mn-Al SYSTEM
… of shell growth in the continuous casting of peritectic steels constitutes a major barrier to the commercial production of many steel grades such as Advanced high strength steels (AHSS), transformation induced plasticity (TRIP) steels, abrasion-resistant steels, advanced armor plate steels, …
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The influence of rough rolling conditions on austenite evolution in peritectic microalloyed plate steels
The thermo-mechanical processing of microalloyed steels has been studied widely. However most of the work has been focused on the finishing stages of hot rolling where pancaking of the austenite is desired for strength and toughness. During roughing, full recrystallization is desired for a uniform, …
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Effect of melt convection on microstructure evolution of peritectic Nd-Fe-B and Ti-Al alloys
In dieser Arbeit wurde der Einfluss der Schmelzkonvektion auf das erstarrende Gefüge von peritektischen Nd-Fe-B – und TiAl-Legierungen mit Hilfe neuartiger Methoden untersucht. Da die magnetischen und mechanischen Eigenschaften dieser technisch relevanten Legierungen stark vom Gefüge und …
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Pathways to a Family of Low-Cost, High-Performance, Metal Matrix Composites Based on Aluminum Diboride in Aluminum
… on the Al(L) + AlB 2 → Al(L) + AlB12 peritectic transformation and the growth of AlB2 in aluminum. The equilibrium peritectic transformation temperature was redetermined and found to be 950 +/- 5°C. The kinetics of the peritectic transformation were measured and reported for the …
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Development of third generation advanced high strength steels
… crystallography of austenite formed during the peritectic reaction. Solute profiles across the peritectic interface showed aluminum segregated near the interface which promoted bainitic ferrite formation. Thermal treatments were used to manipulate the concentration and type of oxides and the …
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Phase equilibria in the LiF-AlF₃Na₃AlF₆ system
… - 37% LiF, 17% Na₃AlF₆, 46% AlF₃ and 620°C 4) peritectic - 30% LiF, 37% Na₃AlF₆, 33% AlF₃ and 660°C 5) reaction point - 65% LiF, 9% Na₃AlF₆, 26% AlF₃ and 675°C The 500°C isothermal section contains 7 three-phase regions and 2 large two-phase regions. The binary system Na₃AlF₆-Li₃AlF₆ contained …
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Phase equilibria in the LiF-AlF₃-Na₃AlF₆-Al₂O₃ system
… % Li₃A1F₆, 29% Na₃A1F₆, 5% A1₂0₃ and 670°C 2. peritectic - 51 mole % Li₃A1F₆, 42.5% Na₃A1F₆, 65% A1₂0₃ and 683°C 3. reaction point - 65 mole % Li₃A1F₆, 33% Na₃A1F₆, 2% A1₂0₃ and 693°C. The 500°C isothermal section contains three 3-phase regions and one 2-phase region. The quaternary system …
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CALPHAD modeling of phase diagram boundaries for binary 2-amino-2-methyl-1,3-propanediol (AMPL) and tris(hydroxymethyl) aminomethane (TRIS) system
… the other at ~60 mol. % TRIS at 104oC, and one peritectic at 55 mol.% TRIS at 127oC were calculated. The maximum solubility of TRIS in AMPL is 10 mol.%, and that of AMPL in TRIS is 18 mol.% at 85oC. An important feature of this phase diagram is the presence of and ‟ phases above 110oC. …
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The vanadium-zirconium alloy system
… and that the intermediate phase decomposes in a peritectic reaction at 1300° +/- 25°C to give liquid and a vanadium-rich solid solution. The eutectic composition was found to be near 30 percent vanadium. The intermediate phase was determined to exist over only a very narrow range of composition …
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The effect of non-metallic particles on as-cast austenitic structure of low carbon steel
… rate on the as-cast austenite grain size of peritectic plain-carbon steel has been examined. Remelting tests followed by continuous cooling and helium quenching were performed on a Gleeble 1500 Thermo mechanical Simulator. Two low alloy types of steel were used; both had basically the same …
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The Fraser Lakes Zone B U-Th-REE deposit and its host rocks : implications for pegmatite- and leucogranite-hosted U-Th-REE deposits in northern Saskatchewan, Canada
… melting and incorporation of more restitic and peritectic material. Field relationships and chemical age dating of the pegmatites suggests that they formed between 1.85 to 1.80 Ga, during peak thermal metamorphism and ensuing decompression related to the ca. 1.9 to 1.8 Ga Trans-Hudson Orogen …
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Quantitative impurities effects on temperatures of tin and aluminium fixed-point cells
… the phase transition temperature through a peritectic (“positive” impurities), and that the effects of this segregation can be clearly seen on the shape of the melting curves of thetin doped with Sb. Some of the aluminium doped with Ti freezing curves may also show evidence of a“concave up” …
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Grade effects on thermal-mechanical behavior during the initial solidification of steel
… Carbon (0.003 %C), Low Carbon (0.04 %C), Peritectic (0.13 %C), and High Carbon (0.47 %C), simulating 30 s dwell times. Mesh refinement for capturing solidification details was examined and element sizes of 0.1 mm or smaller may be required to properly study solidification phenomena. All …
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Thermodynamic and kinetic examinations of inorganic materials formation
… formation kinetics are identified to be a peritectic transition, intermetallic formation, and particle size reduction. These factors were explored for the discovery of new ternary chalcogenide materials. Realizing the effectiveness of burst formation of superheated liquid on materials …