Formation of periodic microstructures involving the L12 phase in eutectic Al–Ti–Cr alloys

Barabash, O.M.; Milman, Yu.V.; Miracle, D.B.; Karpets, M. V.; Korzhova, N. P.; Legkaya, T.N.; Mordovets, N. M.; Podrezov, Yu. N.; Voskoboinik, I.V.

doi:10.1016/s0966-9795(03)00122-5

Cited by 18 publications

(11 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ichimaru et al [12] reported for the monovariant eutectic b(Ti,Cr,Al) + s occurring between U 3 and U 4 the composition Al 53 Cr 22 Ti 25 . The data reported by Barabash et al [24] confirmed this value. The eutectic c 1 (Cr,Al) + s occurring between U 4 and U 5 and having the composition Al 63 Cr 24 Ti 13 is observed in the as-cast alloy 5.…”

Section: A Isothermal Section At 900°c and All-solid-state Reactionsmentioning

confidence: 54%

Reaction Scheme and Liquidus Surface of the Ternary System Aluminum-Chromium-Titanium

Chen

Weitzer

Krendelsberger

et al. 2009

Metall Mater Trans A

View full text Add to dashboard Cite

The constitution of the ternary system Al-Cr-Ti is investigated over the entire composition range using X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDS), differential thermal analysis (DTA) up to 1500°C, and metallography. Solid-state phase equilibria at 900°C are determined for alloys containing £75 at. pct aluminum and at 600°C for alloys containing >75 at. pct Al. A reaction scheme linking these solid-state equilibria with the liquidus surface is presented. The liquidus surface for £50 at. pct aluminum is dominated by the primary crystallization field of bcc b(Ti,Cr,Al). In the region >50 at. pct Al, the ternary L1 2 -type phase s forms in a peritectic reaction p max at 1393°C from L + TiAl. Furthermore, with the addition of chromium, the binary peritectic L + a(Ti,Al) = TiAl changes into an eutectic L = a(Ti,Al) + TiAl. This eutectic trough descends monotonously through a series of transition reactions and ternary peritectics to end in the binary eutectic L = Cr 7 Al 45 + (Al).

show abstract

Section: A Isothermal Section At 900°c and All-solid-state Reactionsmentioning

confidence: 54%

Reaction Scheme and Liquidus Surface of the Ternary System Aluminum-Chromium-Titanium

Chen

Weitzer

Krendelsberger

et al. 2009

Metall Mater Trans A

View full text Add to dashboard Cite

show abstract

“…mental work ofJewett et al [22e24], to reproduce the formation of the s phase at temperatures between 1623 and 1523 K[62,65,66], and to qualitatively reproduce the primary crystallization fields of the s, g-TiAl, and zeTi 5 Al 11 in the liquidus surface of Bochvar et al[17].6.2.3. The b and b 0 phases The b phase, which has the cI2eW structure, is modeled as the substitutional solution (Al,Cr,Ti).…”

mentioning

confidence: 99%

Thermodynamic assessment of the Cr–Ti and first assessment of the Al–Cr–Ti systems

et al. 2011

View full text Add to dashboard Cite

“…The lattice type and parameter of the γ-phase are very close to those of the L1 2 phase in the Al-based AlTi-Cr system [6] (ordered alloying titanium and chromium elements in the fcc aluminum cell with a = 0.3951 nm). The α-phase is a crystalline 1/1 approximant of some nonequilibrium quasicrystalline phase.…”

Section: Resultsmentioning

confidence: 57%

Study of Al–Cu–Fe–Ti–Cr–Si powders for thermal spraying produced by mechanochemical synthesis and subsequent annealing

Borisova

Adeeva

Tunik

et al. 2009

Powder Metall Met Ceram

View full text Add to dashboard Cite

The paper examines the phase transformations of composite powders based on Al 63 Cu 25 Fe 12 that contain alloying elements (Ti, Cr, Si in the ratio AlCuFe : TiCrSi = 75 : 25). The powders are produced by mechanochemical synthesis and subsequent thermal treatment. Amorphous and crystalline powder mixtures form during synthesis; their annealing results in multiphase structures consisting of α, β 1 , and β 2 phases. High-temperature x-ray diffraction has revealed an α-phase between 700 and 900°C. The new α-phase should be regarded as a 1/1 approximant of the nonequilibrium quasicrystalline phase. The maximum content of the approximant phase (68 wt.%) is observed after five-hour synthesis and subsequent annealing (T = 700°C, τ = 2 h) of pressed powders, microhardness of the particles reaching 8900 MPa.

show abstract

Formation of periodic microstructures involving the L12 phase in eutectic Al–Ti–Cr alloys

Cited by 18 publications

References 21 publications

Reaction Scheme and Liquidus Surface of the Ternary System Aluminum-Chromium-Titanium

Reaction Scheme and Liquidus Surface of the Ternary System Aluminum-Chromium-Titanium

Thermodynamic assessment of the Cr–Ti and first assessment of the Al–Cr–Ti systems

Study of Al–Cu–Fe–Ti–Cr–Si powders for thermal spraying produced by mechanochemical synthesis and subsequent annealing

Contact Info

Product

Resources

About