Effect of Al content on porous Ni–Al alloys

Dong, Hongxing; He, Yuehui; Jiang, Yao; Wu, Lei; Zou, Jin; Xu, Nanping; Huang, Baiyun; Liu, Chang

doi:10.1016/j.msea.2011.02.014

Cited by 52 publications

(23 citation statements)

References 37 publications

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“…In this research, the highest tensile stress value in the heat-treated melt-spun samples was found to be 1 850 MPa at 300 8C which is close to that reported by Borodianska et al [7], Garcia et al [28] and Dong et al [37]. However it is about twice that for the NiAl-1Au alloy obtained by Sheng et al [38].…”

Section: Phase Identification and Thermal Properties Of Ni-23al Alloyssupporting

confidence: 88%

Influences of high temperature on the microstructural, electrical and mechanical properties of Ni-23 wt.% Al alloy

Karaköse

Keskín

2015

International Journal of Materials Research

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Influences of high temperature on the microstructural, electrical and mechanical properties of Ni-23 wt.% Al alloyThe microstructural, electrical and mechanical characteristics of conventionally and rapidly solidified Ni-23 wt.% Al alloys after heat treatments were investigated. The microstructures of Ni-23Al alloys were examined by means of scanning electron microscopy and the phase composition was identified using X-ray diffraction analysis. The phase transitions during the solidification process were investigated using differential thermal analysis under an Ar atmosphere. X-ray diffraction analysis indicated that the Ni-23Al samples showed an intermetallic c'-Ni 3 Al phase, and we observed the intermetallic c'-Ni 3 Al phase together with the b-NiAl phase after heat treatment at 700 -900 8C for 24 h. We performed electrical resistivity measurements by using the four-point probe technique in the temperature range 100 -900 8C. The resistivity of Ni-23 wt.% Al samples increases linearly with temperature. Vickers microindentation tests were carried out on the heat-treated samples with loads ranging from 392.26 mN to 1 174.86 mN at room temperature. We found that the microhardness and effective elastic modulus values increased with increasing temperature and these values showed peak load dependence. The tensile and compressive stress values of the Ni-Al alloys also decreased with increasing temperature. E. Karaköse, M. Keskin: Influences of high temperature on the properties of Ni-23 wt.% Al alloy Int.E. Karaköse, M. Keskin: Influences of high temperature on the properties of Ni-23 wt.% Al alloy

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Section: Phase Identification and Thermal Properties Of Ni-23al Alloyssupporting

confidence: 88%

Influences of high temperature on the microstructural, electrical and mechanical properties of Ni-23 wt.% Al alloy

Karaköse

Keskín

2015

International Journal of Materials Research

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“…The Al-Ni alloy has good performance such as light weight, high strength, and high temperature stability, and is widely used as a high temperature material [9], corrosion-resistant and anti-oxidation material [10], functional thin film [11,12], phase catalytic material [13,14] and so on. However, the Al-Ni alloy has poor ductility at room temperature, weak high temperature strength and creep resistance [15,16], and some mechanisms on the solid and liquid structures of the Al-Ni alloy are not very clear [17,18], that is, there is an urgent need to solve those problems.…”

Section: Introductionmentioning

confidence: 99%

Local structure and its change of Al–Ni alloy melts

Liu

et al. 2014

Journal of Molecular Liquids

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“…Ni-based alloys are widely used cathodes for the electrolysis of alkaline waters due to the relatively high catalytic activity of Ni, and the synergism in the catalytic behavior of various components in the metal alloy. Alloys such as NiCo [35][36][37][38][39][40][41], NiFe [42][43][44][45][46], NiMo [43,[47][48][49][50][51][52][53][54][55][56][57][58][59], NiW [47,60,61], NiCu [62,63], NiAl [6,[64][65][66][67][68], NiZn [69][70][71][72][73], NiMoFe [56,[74][75][76][77] were used by means of different methods. Materials based on nickel and molybdenum attract ever growing attention because of their activity for HER and sufficient corrosion resistance in...…”

Section: Chemical Problems 2018 No 3 (16)mentioning

confidence: 99%

“…The instability of Raney Ni electrodes due to the dissolution of the active element during operation was the main factor to restrict its usage. However, the intermetallic compound Ni3Al is still considered by researchers because of its high resistance to corrosion in an alkaline solution [64][65][66][67]. The high activity of this catalyst for HER in the 6M alkaline solution is explained as being due to the high porosity and large real surface of the Ni3Al electrode [68].…”

Section: Chemical Problems 2018 No 3 (16)mentioning

confidence: 99%

Electrocatalysts for Water Electrolysis

Aliyev¹,

Guseynova²,

Gurbanova³

et al. 2018

Chemical Problems

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The review paper accumulates the latest information on the analysis of catalyst synthesis for the electrolysis of water in alkaline and partially in acidic media. Literature data on the production of electro-catalysts based on noble, refractory, transition and pure metals, as well as metals doped with molybdenum, phosphorus, and other elements, are presented. Given the different methods of synthesis of electro-catalyst, the advantage of the electrochemical method is emphasized as easy, accessible method enabling to regulate the composition of synthesized electrodes by changing the content of an electrolyte and the conditions of electrolysis, controlling the properties of synthesized materials.

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Effect of Al content on porous Ni–Al alloys

Cited by 52 publications

References 37 publications

Influences of high temperature on the microstructural, electrical and mechanical properties of Ni-23 wt.% Al alloy

Influences of high temperature on the microstructural, electrical and mechanical properties of Ni-23 wt.% Al alloy

Local structure and its change of Al–Ni alloy melts

Electrocatalysts for Water Electrolysis

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