Ternary carbides of transition metals with aluminum and magnesium

Huetter, L.J; Stadelmaier, H. H.

doi:10.1016/0001-6160(58)90074-9

Cited by 121 publications

(31 citation statements)

References 4 publications

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“…3, the large non-stoichiometry of the phase agreed with the previous experimental results. 16,17) The phase boundaries in Fig. 3 did not give any serious conflictions with the experimental data reported by Kimura, et al 16) A slight deviation may be due to the difference in the annealing temperature and cooling rate.…”

Section: Co-al-c Ternary Systemmentioning

confidence: 51%

The Phase Equilibria and Seebeck Coefficient of (Co,M)<SUB>3</SUB>AlC (M=Fe or Ni)

Maruoka

Suzuki

2006

Mater. Trans.

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The phase equilibria and the Seebeck coefficient were measured at the vicinity of the carbide (Co,M) 3 AlC (M ¼ Fe or Ni) in the Co-Al-C, Co-Fe-Al-C and Co-Ni-Al-C systems. The samples were well annealed at 1473 K and examined through X-ray diffraction measurements, energy dispersive X-ray analysis and carbon analysis. Co 3 AlC with a perovskite structure did not exist at its stoichiometric composition, but was located within a narrow compositional range near Co 3 AlC 0:67 . The maximum Seebeck coefficient was 23.3 mV/K at 873 K for Co 3 AlC 0:63 . The replacement of a small amount of Co by Fe resulted in the expansion of the single-phase area of (Co,Fe) 3 AlC x , and the Seebeck coefficient of the single phase reached its maximum, 32.6 mV/K, at 873 K and Co 3:506 Fe 0:025 AlC 0:77 in the quaternary Co-Fe-Al-C system. The addition of Ni did not stabilize this carbide, and the maximum Seebeck coefficient in the quaternary Co-Ni-Al-C system was 26.9 mV/K at 873 K.

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Section: Co-al-c Ternary Systemmentioning

confidence: 51%

The Phase Equilibria and Seebeck Coefficient of (Co,M)<SUB>3</SUB>AlC (M=Fe or Ni)

Maruoka

Suzuki

2006

Mater. Trans.

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“…The possibility of four-phase reactions has been mentioned in Refs. [4][5][6]. DTA evaluations focused on accurate determination of the monovariant line and the interpretation of microstructures of slowly solidified alloys.…”

Section: Light Microscopy and Dtamentioning

confidence: 99%

“…They are regarded as potential strengthening phases in a new class of cobalt-base superalloys in some analogy to the L1 2 type g-Ni 3 (Al,Ti,Ta) phases which are coherently precipitated in numerous creep-resistant Ni-base superalloys [3]. The k-Co 3 AlC x phase is an incongruently melting compound in the ternary Co-Al-C system as supported by work on phase diagrams in the ternary system Co-Al-C [1,[4][5][6]. The melt equilibria presented in the various diagrams, however, differ in some details.…”

Section: Introductionmentioning

confidence: 99%

Phase relations in the Co–CoAl–C system involving E21 type Co3AlC phase

Fritscher

Welsch

2009

Intermetallics

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“…Having no intermetallic compound as a strengthener had been a huge disadvantage in developing Co-based superalloys for a long time. Phase stability of E2 1 Co 3 AlC was focused on and extensively investigated by Huetter et al [1,2], Stadelmaier et al [3,4] and Nowotny and Benesovsky [5], but mechanical properties of E2 1 Co 3 AlC alloys were not examined until Hosoda et al [6] performed compression tests on multi-phase alloys including E2 1 Co 3 AlC phase. Since then our group have conducted a series of works to design and develop Co 3 AlC based heat resistant alloys, including phase diagram determination and evaluation of microstructures and mechanical properties [7e14].…”

Section: Introductionmentioning

confidence: 99%