Thermal vacancy behavior analysis through thermal expansion, lattice parameter and elastic modulus measurements of B2-type FeAl

Zhao, Mi; Yoshimi, Kyosuke; Maruyama, Kouichi

doi:10.1016/j.actamat.2013.10.051

Cited by 34 publications

(9 citation statements)

References 20 publications

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“…To estimate the room-temperature fracture-toughness values using four-point bending tests, the elastic parameters of the heat-treated alloys were measured at room temperature using the electromagnetic acoustic resonance (EMAR) method, 55,56) with specimens of about 4 © 4 © 5 mm 3 in size. The density of the alloys, as measured by the Archimedes' principle, was used for the EMAR analysis.…”

Section: Methodsmentioning

confidence: 99%

Effect of Microstructural Continuity on Room-Temperature Fracture Toughness of ZrC-Added Mo–Si–B Alloys

et al. 2018

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The room-temperature fracture toughness of ZrC-added MoSiB alloys prepared using an arc-melting technique was investigated. The constituent phases of the heat-treated alloys were mainly molybdenum solid solution (Mo ss ), Mo 5 SiB 2 (T 2 ), and ZrC, with a small amount of Mo 2 B in a few alloys. Four-point bending tests with a Chevron-notch were performed, and the average fracture-toughness values ranged from 12.4 to 20.3 MPa(m) 1/2 depending on alloy composition. Here, the effects of the volume fractions of the constituent phases and the continuity of Mo ss on the fracture toughness are discussed. The fracture toughness improved with an increase in the volume fractions of the Mo ss and ZrC phases. Alloys with a higher Mo ss continuity exhibited higher fracture toughness, for example, the fracture toughness of 64.5Mo3.2Si6.5B 12.9Zr12.9C (mol.%) was 19 MPa(m) 1/2 ; the alloy contained a >95%-continuous Mo ss phase, even though it also contained 16 vol.% T 2 and 23 vol.% ZrC. [

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Section: Methodsmentioning

confidence: 99%

Effect of Microstructural Continuity on Room-Temperature Fracture Toughness of ZrC-Added Mo–Si–B Alloys

et al. 2018

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“…The DFT results suggest that the formation energy for a Ca vacancy (0.699 eV) is much lower than those for Fe (1.95 eV) and As (2.71 eV) interstitials. Also, the TEM diffraction data from the FeAs-grown/960°C-quenched crystals showed a reduction in the c-axis lattice parameter, which commonly results from the lattice relaxation due to the presence of vacancies [44,45]. The presence of interstitials almost always increases the lattice parameters, so the effect of vacancies on the lattice parameter seems to be higher than that of interstitials.…”

Section: Microstructure Of Feas-grown/960°c-quenched Samplementioning

confidence: 96%

Uniaxial compression of [001]-oriented CaFe2As2 single crystals:the effects of microstructure and temperature on superelasticity Part I: Experimental observations

et al. 2021

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“…24,25 The starting material was a commercially available surface-polished FeAl alloy. The size of the prepared sample for laser irradiation was a thickness of 1 mm and a diameter of 6 mm.…”

Section: Methodsmentioning

confidence: 99%

Wavelength-dependent magnetic transitions of self-organized iron–aluminum stripes induced by pulsed laser irradiation

Yoshida

Watanabe

Kaiju

et al. 2015

Journal of Applied Physics

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Articles you may be interested inWavelength-dependent magnetic transitions of self-organized iron-aluminum stripes induced by pulsed laser irradiation We investigate the laser wavelength dependence of structural and magnetic transitions on the surface of an iron-aluminum (FeAl) alloy induced by nanosecond pulsed laser irradiation. The formation of self-organized FeAl stripes with a wavelength-dependent period is observed in a local area on the (111)-oriented plane. Focused magneto-optical Kerr effect measurements reveal that the coercivity reaches up to 1.2 kOe with increasing the magnetic field rotation angle, which is estimated from the stripe direction, in FeAl stripes irradiated at 355 nm, and its magnetization reversal can be explained by the domain-wall motion model. On the other hand, the magnetization reversal agrees with the Stoner-Wohlfarth model in FeAl stripes irradiated at 1064 nm. This magnetic transition originates from the B2-to-A2 phase transition in stripe structures and bulk regions. These results indicate that the magnetic transition from the incoherent to coherent mode as well as the structural transformation of stripe patterns can be controlled by the incident laser wavelength. V C 2015 AIP Publishing LLC.[http://dx

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Thermal vacancy behavior analysis through thermal expansion, lattice parameter and elastic modulus measurements of B2-type FeAl

Cited by 34 publications

References 20 publications

Effect of Microstructural Continuity on Room-Temperature Fracture Toughness of ZrC-Added Mo–Si–B Alloys

Effect of Microstructural Continuity on Room-Temperature Fracture Toughness of ZrC-Added Mo–Si–B Alloys

Uniaxial compression of [001]-oriented CaFe2As2 single crystals:the effects of microstructure and temperature on superelasticity Part I: Experimental observations

Wavelength-dependent magnetic transitions of self-organized iron–aluminum stripes induced by pulsed laser irradiation

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