Phase evolution and dendrite growth in laser cladding of aluminium on zirconium

Yue, Tai Man; Xie, Hui; Lin, Xin; Yang, Haiou

doi:10.1016/j.jallcom.2010.12.173

Cited by 10 publications

(7 citation statements)

References 17 publications

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“…Based on the results shown, and similar to previous work in the Zr/Al system, it is clear that Al-diffusion into Zr was extensive, and resulted in a large affected diffusion zone with several Zr x Al y intermetallic layers [31][32][33].…”

Section: Discussionsupporting

confidence: 85%

“…Kidson and Miller [31] showed that bonding Al to Zr for hydrogen mitigation led to the formation of a singular ZrAl 3 bonding layer, even though 10 intermetallics are known to form between the two elements. Yue et al [32] explored the diffusion profile of Al that was laser clad onto a Zr substrate. The resulting diffusion layer was composed of a series of phases: (Zr) ?…”

Section: Introductionmentioning

confidence: 99%

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Reactivity of Zircaloy-4 with Ti3SiC2 and Ti2AlC in the 1100–1300 °C temperature range

Tallman

Yang

Pan

et al. 2015

Journal of Nuclear Materials

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h i g h l i g h t sThe diffusion bonding of Ti 3 SiC 2 and Ti 2 AlC to Zircaloy-4 cladding was investigated. Si penetration into the Zr-4 was roughly an order of magnitude less than that of Al. The resultant bonds using Ti 2 AlC were weak and full of cracks. The Ti 3 SiC 2 /Zr-4 bonds were stronger, and withstood the forces of sectioning. a b s t r a c tHerein, we report on the interactions between zirconium, in the form of Zircaloy-4 (Zr-4) and the MAX phases, Ti 3 SiC 2 and Ti 2 AlC in the 1100-1300°C range. In both cases, the A-group element, Al or Si, diffused out of the MAX phases and formed intermetallics with the Zr-4. Under comparable conditions, Si penetration into the Zr-4 was roughly an order of magnitude less than that of the Al from the Ti 2 AlC. The effective diffusion coefficient of Si can be described by D eff Si m 2 s ¼ 7:4 Â 10 À9 exp À170 kJ=mol RT ð Þ ; that of Al by D eff Al m 2 s ¼ 9:3 Â 10 À12 exp À38 kJ=mol RT ð Þ . At 38 kJ/mol, the activation energy for the Ti 2 AlC/Zr-4 diffusion bonding process was significantly lower than that of the Ti 3 SiC 2 /Zr-4 diffusion couples, at 170 kJ/mol.

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Section: Discussionsupporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Reactivity of Zircaloy-4 with Ti3SiC2 and Ti2AlC in the 1100–1300 °C temperature range

Tallman

Yang

Pan

et al. 2015

Journal of Nuclear Materials

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“…However, due to the violent and complex reactions in molten pool in short time, it is difficult to control the microstructure evolution using mixed powders or adding reinforced particles during laser cladding [18][19][20][21][22][23]. Yue et al [24] could not be ignored when cladding Ni-Cr-B-Si coatings on the surface of zirconium alloys. It is possible for molten zirconium to react with some nonmetallic elements (e.g., boron, carbon and silicon) to form various ceramics as reinforcements within the matrix [26].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Effect of high dilution on the in situ synthesis of Ni–Zr/Zr–Si(B, C) reinforced composite coating on zirconium alloy substrate by laser cladding

Liu

Wang

et al. 2015

Materials & Design

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“…Additionally, in the case of the AlZr phase, it shows a dendritic morphology. This discrepancy seems to be because the growth occurred under a rapid solidification condition [10].…”

Section: Cral Laser-coated Zr Alloy That Exposed To a High Temperaturementioning

confidence: 98%

Microstructure and Oxidation Behavior of CrAl Laser-Coated Zircaloy-4 Alloy

Kim

et al. 2017

Metals

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Laser coating of a CrAl layer on Zircaloy-4 alloy was carried out for the surface protection of the Zr substrate at high temperatures, and its microstructural and thermal stability were investigated. Significant mixing of CrAl coating metal with the Zr substrate occurred during the laser surface treatment, and a rapidly solidified microstructure was obtained. A considerable degree of diffusion of solute atoms and some intermetallic compounds were observed to occur when the coated specimen was heated at a high temperature. Oxidation appears to proceed more preferentially at Zr-rich region than Cr-rich region, and the incorporation of Zr into the CrAl coating layer deteriorates the oxidation resistance because of the formation of thermally unstable Zr oxides.

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Phase evolution and dendrite growth in laser cladding of aluminium on zirconium

Cited by 10 publications

References 17 publications

Reactivity of Zircaloy-4 with Ti3SiC2 and Ti2AlC in the 1100–1300 °C temperature range

Reactivity of Zircaloy-4 with Ti3SiC2 and Ti2AlC in the 1100–1300 °C temperature range

Effect of high dilution on the in situ synthesis of Ni–Zr/Zr–Si(B, C) reinforced composite coating on zirconium alloy substrate by laser cladding

Microstructure and Oxidation Behavior of CrAl Laser-Coated Zircaloy-4 Alloy

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