Phase composition and transformation behavior of readily solidified Al–Ni–Fe alloys in α-Al–decagonal phase region

Setyawan, Albertus D.; Louzguine, Dmitri V.; Sasamori, Kenichiro; Kimura, Hisamichi; Ranganathan, S.; Inoue, Akihisa

doi:10.1016/j.jallcom.2005.03.020

Cited by 20 publications

(7 citation statements)

References 26 publications

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“…This is because the sintering at 530C° for 8 hr increases diffusion and reduces voids that increase the contact points between particles [8]. The results of the microstructure examination show that the phase (Al3Ni2 ) is formed between aluminum and nickel which reduces the expansion of pores by filling the granules of this phase of the vacancies and gaps formed between the grains of the planet [9].…”

Section: Resultsmentioning

confidence: 99%

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The Effect of SiC Addition on AlNi Compact Mechanical Properties Produced Via Powder Metallurgy

Haleem

Kadhem

2019

JUBES

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This research directed to produce Al-Ni alloys by powder metallurgy technique since of its marketable and industrial significant. Nickel and aluminum powders were determined their particle size then the powders mixed and blended with percent (Al - 20% Ni). Silicon carbide particles (SiC) powder supplemented to master alloy powder by percent (4-6- and 8 wt. %) separately then these powders mixed to obtain homogeneous distribution, then the powders compacted in cold pressure at 700 MPa. The sintering procedure was performed at (530°C) for 8 hrs. At vacuum atmosphere (10-4 torr). After cooling these samples grinded and polished to estimate microstructure, density, porosity, LOM, SEM, EDS, X-ray diffraction ,hardness and wear tests at dissimilar circumstances. Results showed that the hardness increased by (52%) and wear rate decreased by (55%) at 8 wt % silicon carbide addition, and it was the best results.

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Section: Resultsmentioning

confidence: 99%

“…The sample is weighted before and after a period of time (5, 10, 15 and 20 min), using (0.0001) accuracy electric balance the wear instrument that was used in this work are shown in Fig. (9).…”

Section: *Dry Slide Wear Testmentioning

confidence: 99%

The Effect of SiC Addition on AlNi Compact Mechanical Properties Produced Via Powder Metallurgy

Haleem

Kadhem

2019

JUBES

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“…SEM-EDS and XRD analysis results showed that mainly Al 9 FeNi phase was formed as the secondary phase in the 1% Ni alloy, whereas Al 3 Ni phase was clearly observed as well as the Al 9 FeNi phase in both the 2% and 3% Ni alloys. 9 In the case of permanent mould casting, a certain amount of elemental iron is often necessary to reduce the metal-mould interaction and die-sticking tendency. 2,3 So, about 1% Fe was added to all the experimental alloys, but various AlFe phases that were typically formed in iron-containing Al alloys were not found through XRD analyses in the present investigation, which is possibly owing to the relatively low Fe content.…”

Section: Resultsmentioning

confidence: 99%

Effect of Ni content on the properties and hot cracking susceptibility of Al–Fe–Mg–Zn–xNi alloys for high conductivity demanding applications

Kim

et al. 2015

Materials Research Innovations

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Because conventional Al-Si-based casting alloys are not suitable for high conductivity demanding parts, such as light-emitting diode lamp heat sink, the need for new high-conductivity aluminium alloys containing no Si became obvious. In this study, various properties of high conductivity Al-0·5Fe-0·5Mg-0·5Zn-xNi alloys were investigated. Ni additions appeared to enhance the tensile strength and corrosion potential of the alloys. Furthermore, hot cracking susceptibility of the alloys was also observed to increase with the increase in the Ni content.

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“…In other works [13][14][15] D-phase is assumed to be thermodynamically stable between 930 and 847 °С, and on further cooling transforms to the mixture of three crystalline phases. Besides, in the study [8] the formation of a single decagonal D-phase by rapid solidification is reported to occur in the concentration range of Al 75-70 Ni 16-9 Fe 9-21 . In papers [16][17][18][19] the formation of stable D-phase is confirmed as well.…”

Section: Introductionmentioning

confidence: 98%

“…The D-phase stability at room temperature is still under discussion. A quasicrystalline decagonal phase was found to form at compositions very close to Al 72 Ni 13 Fe 15 and Al 71.6 Ni 23 Fe 5.4 [7,8]. In a review paper [9] it was asserted that decagonal quasicrystals in the Al-Ni-Fe system are to be regarded as metastable [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Structure Formation and Corrosion Behaviour of Quasicrystalline Al–Ni–Fe Alloys

Sukhova

Polonskyy

Ustinоvа

2017

PCSS

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The formation of quasicrystalline decagonal phase and related crystalline phases was investigated by a combination of optical metallography, powder X-ray diffraction, atomic absorption spectroscopy and differential thermal analysis. Corrosion behaviour of quasicrystal Al–Ni–Fe alloys was studied by gravimetric and potentiodynamic polarization experiments in saline and acidic solutions at room temperature. The decagonal phase exhibits two modifications (AlFe- and AlNi-based) depending on the composition. In Al72Ni13Fe15 alloy it coexists with monoclinic Al5FeNi phase. In Al71.6Ni23Fe5.4 alloy crystalline Al13(Ni,Fe)4, Al3(Ni,Fe)2, and Al3(Ni,Fe) phases are seen adjacent to the quasicrystalline decagonal phase. Stability of quasicrystal phase up to room temperature was shown to be connected with its incomplete decomposition during cooling at a rate of 50 K/min. Al72Ni13Fe15 alloy has more than twice larger volume fraction of this phase compared to that of Al71.6Ni23Fe5.4 alloy. A dependence of microhardness on composition was observed as well, with Al72Ni13Fe15 alloy having substantially higher values. In acidic solutions, Al71.6Ni23Fe5.4 alloy showed the best corrosion performance. In saline solutions, the investigated alloys remained mainly untouched by corrosion. Mass-change kinetics exhibited parabolic growth rate.

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Phase composition and transformation behavior of readily solidified Al–Ni–Fe alloys in α-Al–decagonal phase region

Cited by 20 publications

References 26 publications

The Effect of SiC Addition on AlNi Compact Mechanical Properties Produced Via Powder Metallurgy

The Effect of SiC Addition on AlNi Compact Mechanical Properties Produced Via Powder Metallurgy

Effect of Ni content on the properties and hot cracking susceptibility of Al–Fe–Mg–Zn–xNi alloys for high conductivity demanding applications

Structure Formation and Corrosion Behaviour of Quasicrystalline Al–Ni–Fe Alloys

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