Interfacial reaction and the dominant diffusing species in Mg–Ni system

Tsai, Ming-Yen; Chou, Ming-Shean; Kao, C. R.

doi:10.1016/j.jallcom.2008.03.124

Cited by 21 publications

(9 citation statements)

References 16 publications

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“…It indicates that reaction product between Mg and Ni can readily form through solid phase processing and the product formed is confirmed to be Mg 2 Ni intermetallic at low temperatures up to 750 • C. Studies [5,6] on solidification processed Mg/Ni composites using micron size nickel particles also reported the formation of Mg 2 Ni phase. The formation of Mg 2 Ni in Mg/(Y 2 O 3 + Ni) system in the present study is thus consistent with the observation of other research groups [23][24][25]. The formation of Mg 2 Ni intermetallic in hybrid nanocomposites further assisted in grain boundary pinning in addition to yttria and nickel reinforcements in magnesium matrix.…”

Section: Microstructural Analysissupporting

confidence: 92%

“…According to Mg-Ni phase diagram and the sintering temperature used in the present study (643 • C), Mg 2 Ni is the favorable intermetallic phase formed between Mg and Ni [22]. Based on the previous study [23] solid state reaction between Mg and Ni took place at the low temperature which is even lower than Mg-Ni eutectic temperature (506 • C). In another related studies, only Mg 2 Ni phase was formed when the constituent Mg and Ni powders were synthesized at 670 • C [24] and 750 • C (1023 K) [25].…”

Section: Microstructural Analysismentioning

confidence: 88%

See 1 more Smart Citation

Development of magnesium/(yttria+nickel) hybrid nanocomposites using hybrid microwave sintering: Microstructure and tensile properties

Tun

Gupta

2009

Journal of Alloys and Compounds

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Section: Microstructural Analysissupporting

confidence: 92%

Section: Microstructural Analysismentioning

confidence: 88%

Development of magnesium/(yttria+nickel) hybrid nanocomposites using hybrid microwave sintering: Microstructure and tensile properties

Tun

Gupta

2009

Journal of Alloys and Compounds

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“…Leon-Patin˜o et al [32,33] also revealed an Al 3 Ni 2 phase in aluminum matrix composites reinforced with Ni-Pcoated SiC particles fabricated by the infiltration method. On the other hand, an Mg 2 Ni phase was also observed by Hassan et al [34] in an Mg-Ni composite and by Tsai et al [35] in the Mg-Ni system. The cenosphere/matrix alloy interfaces in the AZ91/ FAs-CH composite were investigated by the TEM technique.…”

Section: Resultsmentioning

confidence: 54%

The Role of Ni-P Coating Structure on Fly Ash Cenospheres in the Formation of Magnesium Matrix Composites

Braszczyńska-Malik

Kamieniak

2017

Metall Mater Trans A

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The role of the Ni-P coating structure on fly ash cenospheres in the fabrication of magnesium matrix composites has been investigated. Two composites based on AZ91 commercial magnesium alloys with hollow aluminosilicate cenospheres were fabricated by the negative pressure infiltration technique. Two kinds of cenospheres (i.e., as Ni-P coated and after heat treatment) were used in order to determine the influence of the Ni-P coating structure on creating interfaces between the components. Microstructure analyses were carried out by light microscopy, atomic force microscopy, XRD, scanning, and transmission electron microscopy. Al 3 Ni 2 and Mg 2 Ni intermetallic phases at the component interfaces were formed in the composite with as-received Ni-P-coated cenospheres. After heat treatment of the Ni-P-coated cenospheres, NiO was created outside the external layer of the Ni-P coatings and this oxide remained stable at the component interfaces during composite fabrication. In both cases, the Ni-P coating prevented the reaction between the cenosphere walls and the magnesium matrix alloy, which contributed to obtaining intact cenospheres, unfilled by the matrix alloy.

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“…However, only the CoSn 2 phase is observed. It is not uncommon that some thermodynamic stable compounds are not observed in the reaction couples due to various reasons [33][34][35]. According to the phase equilibrium study of the Sn-Ni-Co system at 250 C, the (Ni, Co)Sn 4 phase is a thermodynamic stable phase.…”

Section: Resultsmentioning

confidence: 99%