2024 Grain growth kinetics in ti-o alloys

Grain growth kinetics in ti-o alloys

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August undefined, 2024

WebMar 8, 2024 · The abnormal grain growth and mixed grain structure phenomenon are explained using an equilibrium precipitation phase diagram calculated by Thermo-Calc software package. The AlN particles were observed by field-emission scanning electron microscopy (FESEM), and the amount of AlN precipitations was detected by electron … WebFeb 1, 2013 · Ti-Mo-Nb-Cr-Al-Fe-Si alloy is a new metastable β titanium alloy with excellent combination of strength and ductility. The β grain-growth exponent and the activation energies for β grain growth for the investigated alloy at specified temperature were computed by the kinetic equations and the Arrhenius-type equation. The rate of β grain …

Microstructure and Oxidation Behavior of Metal-Modified Mo-Si-B Alloys …

WebFeb 29, 2024 · The cyclic oxidation behaviors of the as-cast Ti-1100-xNb (x = 0.5, 1.0, 1.5, 2.0) alloys exposed at 650 °C for up to 100 h were systematically investigated. The aim of this work is to explore the in-depth oxidation mechanism by using the oxidation kinetics and the structure of the oxide products. The oxidation kinetics were determined … WebDec 11, 1998 · Abstract The grain growth behavior of the microduplex titanium, 6% aluminum, 4% vanadium alloy is addressed. Although there has been considerable work done on second phase particle coarsening, there is limited research on coarsening in a two-phase material with nearly equal phase ratios. barbara borges

Non-isothermal grain growth in metals and alloys

WebSep 3, 2024 · The 0.65Ca0.61La0.26TiO3-0.35Sm (Mg0.5Ti0.5)O3 [0.65CLT-0.35SMT] ceramic was prepared by the solid-state reaction method. The effects of sintering process on its microstructure and grain growth ... WebJun 20, 2014 · Grain growth behaviors of a beta titanium alloy (Ti–2Al–9.2Mo–2Fe) have been systematically investigated for various temperatures. Quantitative evaluations of … WebAll Ti-Fe alloys carried in this study show a higher corrosion resistance in Hank's solution than pure Ti due to the grain refine enhancement and higher oxide film growth kinetics. … barbara boschung

Microstructure and mechanical properties evolution of Ti-5Al-5Mo …

B2 Grain Growth Behavior of a Ti-22Al-25Nb Alloy Fabricated

WebJun 1, 2024 · The effect of initial structure on phase evolution in continuous heating of a near-α TA15 titanium alloy (Ti-6Al-2Zr-1Mo-1V) was experimentally investigated. To this end; three microstructures were obtained by multiple heat treatment: I-bimodal structure with 50% equaixed α, II-bimodal structure with 15% equiaxed α, III-trimodal structure with … WebApr 21, 2024 · Recently, a mesoscale simulation approach, called phase field and thermal lattice Boltzmann method (PF-TLBM), was developed to simulate microstructure evolution of alloys in SLM melt pool with simultaneous consideration of solute transport, heat transfer, phase transition, and latent heat effect. barbara bosserman dojWebMay 1, 1996 · Short-time beta grain growth kinetics for a conventional titanium alloy Full Record Related Research Abstract The kinetics of beta grain growth during short-time, supertransus heat treatment of Ti-5Al-4V were determined using a salt-pot technique. barbara bosch partei

"WebFeb 14, 2024 · The factors affecting the kinetics of grain growth is reviewed with the emphasis on the recent findings on the solute drag and Zener pinning effects as well as the special case of duplex alloys, where the latter is discussed for the behavior of dual-phase steels during intercritical annealing. " - Grain growth kinetics in ti-o alloys

Grain growth kinetics in ti-o alloys

Recrystallization and grain growth in metastable beta III …

WebFeb 14, 2024 · The factors affecting the kinetics of grain growth is reviewed with the emphasis on the recent findings on the solute drag and Zener pinning effects as well as … WebTi-Mo-Nb-Cr-Al-Fe-Si alloy is a new metastable β titanium alloy with excellent combination of strength and ductility. The β grain-growth exponent and the activation energies for β grain growth for the investigated alloy at specified temperature were computed by the kinetic equations and the Arrhenius-type equation. The rate of β grain growth decreases …

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WebJan 1, 2024 · Besides, it was found that Ti-6Al-4V alloy with grain size of 1~3 mm has higher plasticity and strength poor impact toughness . Balasubramanian et al. [ 14 , 15 ] described the influence of different welding processes on the microstructure, tensile and impact properties of the alloy joint pointed out that the tensile and impact properties of ... WebFeb 1, 2024 · The grain growth exponent of Ti–38Nb-0.3O alloys annealed at 1123 K (n = 0.43) was also ...

WebAbstract. Grain growth behavior of a alpha and beta phases in alpha-beta Ti-Mn alloys were studied by isothermal heat treatments at 973 K. It was found that grain growth of alpha in the alpha-beta alloys can be expressed as D{sub {alpha}} = (Kt{sup n}a)V{sup m}B where D{sub {alpha}} is the grain size of {alpha}, K is the growth constant of {alpha} … WebJul 1, 2008 · The factors affecting the kinetics of grain growth is reviewed with the emphasis on the recent findings on the solute drag and Zener pinning effects as well as the special case of duplex alloys ...

WebOct 16, 2024 · Lu et al [ 11] studied the effect of Mo contents, in Ti-Mo alloy, on grain growth kinetics. Their results showed that increased Mo content leads to greater ability of solute atoms to hinder grain boundary migration and to … WebJan 22, 2024 · The growth kinetics of the thickness (Δ) of the grain-boundary interlayer of the (αTi) phase in the Ti–2 wt % Co alloy is investigated at 750°C. Δ depends on the …

WebMay 15, 2000 · The grain growth kinetics of the alloys studied followed a normal growth. The growth exponents are high when compared to that of other metals and alloys. The …

barbara bottingWebJan 13, 2024 · Bulk forged Ti64-6Mo alloy exhibited high strength and moderate plasticity after α/β-phase-field solution treatment plus aging. The tensile properties of the alloy were determined by the size... barbara botti linkedinhttp://ijmmm.ustb.edu.cn/en/article/doi/10.1007/s12613-019-1854-1 barbara bosson biographyWebJan 1, 2012 · Forging operations of Ti-17 alloy are carried out by successive stages taking place in the β and α + β ranges. These operations aim at homogenizing the material and … barbara botelho tulsa mylifeWebKINETICS OF GRAIN GROWTH After prolonged annealing recrystallized grains were observed to grow to larger average sizes. The kine- tics of the process were determined for three different initial grain sizes of the alloy (14, 30, and 95 … barbara botelloWebOct 15, 2024 · In addition, compared with MSB alloy, MSBZ alloy microstructure has a finer grain size, as shown in Figure 8i,j. The oxidation kinetics of MSB and MSBZ alloys at 900 °C is displayed in Figure 9 a. It can be seen that the net mass variations of MSBZ and MSB after oxidation for 30 h were about +10 mg/cm 2 and −180 mg/cm 2 respectively ... barbara bosson measurementsWeb1 day ago · Three types of fired VTM pellets, PA, PB and PC, with the high compressive strength greater than 2500 N/pellet and size of 10-12.5 mm, were employed in this study. Table 1 lists the main chemical compositions of three types of VTM pellets. As can be seen, the TiO 2 contents of PA and PB are 13.02% and 11.70%, respectively, which belong to … barbara boston obituary