Metallurgical and Physical Factors Controlling the Multi-Functional Corrosion Properties of Pulsed Thermal-Sprayed Al-Co-Ce Coatings

Tailleart, Nicole R.; Gauthier, Ben; Eidelman, Shmuel; Scully, John R.

doi:10.5006/1.3693697

Cited by 18 publications

(20 citation statements)

References 51 publications

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“…To demonstrate the possibility of multifunctional corrosion mitigation capability, we discuss a specifi c nanoengineered, spray applied, amorphous metallic alloy reported previously and engineered for Al alloys (Tailleart et al , 2012;Presuel-Moreno et al , 2008;B. Gauthier, S. Eidelman and D. Book, 2007, unpublished PTS data;Goldman, 2005;Goldman et al , 2003;Presuel-Moreno et al , 2005a;.…”

Section: One Vision For New Coatings With Multiple Tunable Functionsmentioning

confidence: 97%

“…Al-Co-Ce alloy coatings have been produced by both HVOF and PTS with thicknesses ranging from 75 to 600 μ m, often with good adhesion, low porosity and some roughness as seen in Plate X(a-d) Tailleart et al , 2012;Scully et al , 2008). Plate X(e) (see colour section between pages 174 and 175) shows an example of porosity which is typical of other spray coatings and lacks connection through porosity (Tailleart et al , 2012).…”

Section: Materials and Fabrication Of Tunable Amorphous Metallic Coatmentioning

confidence: 97%

“…(b) XRD spectra of an as-deposited PTS coating (composition Al 88 Co 10 Ce 2 at%) before and after heating at 275 °C for 6 hours then 285 °C for 3 hours (Tailleart et al , 2012). ©NACE International 2012.…”

Section: Materials and Fabrication Of Tunable Amorphous Metallic Coatmentioning

confidence: 99%

See 2 more Smart Citations

Tunable multifunctional corrosion-resistant metallic coatings containing rare earth elements

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Presuel-Moreno

2014

Rare Earth-Based Corrosion Inhibitors

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Section: One Vision For New Coatings With Multiple Tunable Functionsmentioning

confidence: 97%

Section: Materials and Fabrication Of Tunable Amorphous Metallic Coatmentioning

confidence: 97%

See 1 more Smart Citation

Tunable multifunctional corrosion-resistant metallic coatings containing rare earth elements

Scully

Tailleart

Presuel-Moreno

2014

Rare Earth-Based Corrosion Inhibitors

Self Cite

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“…Due to their wide range of glass forming compositions and tuneable corrosion resistance, Al-Co-Ce alloys have attracted attention from corrosion protection engineers and scientists [2]. However, the high critical cooling rate required to achieve the amorphous state limits the dimensions of bulk samples.…”

Section: Introductionmentioning

confidence: 99%

Effect of prior laser microstructural refinement on the formation of amorphous layer in an Al86Co7.6Ce6.4 alloy

Murray

Voisey

et al. 2014

Applied Surface Science

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Laser surface melting (LSM) pre-treatment was conducted before large area electron beam (LAEB) treatment in an attempt to eliminate the cracking of the amorphous layer. In our previous work, LAEB treatment successfully generated an amorphous layer on a cast polycrystalline Al-Co-Ce glass forming alloy. However, cracking was found and was associated with large and brittle Al 8 Co 2 Ce phase in the bulk material. Results show that prior LSM treatment in this present work can effectively refine the microstructure of as-cast material, decreasing the particle size and particle spacing of Al 8 Co 2 Ce phase. This decrease in the microstructural length scale greatly reduced the results of cracking of the amorphous layer. The LAEB pulse number required for the homogenisation and amorphisation of treated layer was also decreased for the laser pre-treated sample compared to as-cast material.

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“…Therefore, there is interest in using surface modification techniques to generate coatings or thin films of these amorphous materials. It has been reported that Tailleart et al [9] successfully prepared a largely amorphous Al-Co-Ce alloy coating on AA 2024 alloy by pulsed thermal spraying (PTS) and high velocity oxy-fuel spraying (HVOF) technologies using gas atomised powder as a feedstock. Kato et al [10] also prepared an Al-Co-Y coating using mechanical milled feedstock powder on the same substrate through plasma spraying with promising corrosion resistance after salt fog testing.…”

mentioning

confidence: 99%

Amorphous layer formation in Al86.0Co7.6Ce6.4 glass-forming alloy by large-area electron beam irradiation

Murray

Voisey

et al. 2013

Applied Surface Science

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Amorphous Al-Co-Ce alloys are of interest because of their resistance to corrosion, but high cooling rates are generally required to suppress the formation of crystalline phases. In this study, the surface of a bulk crystalline Al-Co-Ce alloy of a glass-forming composition was treated using large area electron beam (LAEB) irradiation. Scanning electron microscopy shows that, compared to the microstructure of the original crystalline material, the treated surface exhibits greatly improved microstructural and compositional uniformity. Glancing angle X-ray diffraction conducted on the surface of treated samples indicates the formation of the amorphous phase following 25 and 50 pulses at 35 kV cathode voltage. However, when the samples are treated with 100 and 150 pulses at 35 kV cathode voltage of electron beam irradiation, the treated layer comprises localised crystalline regions in an amorphous matrix.In addition, the formation of cracks in the treated layer is found to be localised around the Al 8 Co 2 Ce phase in the bulk material. Overall, crack length per unit area had no clear change with an increase in the number of pulses.

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Metallurgical and Physical Factors Controlling the Multi-Functional Corrosion Properties of Pulsed Thermal-Sprayed Al-Co-Ce Coatings

Cited by 18 publications

References 51 publications

Tunable multifunctional corrosion-resistant metallic coatings containing rare earth elements

Tunable multifunctional corrosion-resistant metallic coatings containing rare earth elements

Effect of prior laser microstructural refinement on the formation of amorphous layer in an Al86Co7.6Ce6.4 alloy

Amorphous layer formation in Al86.0Co7.6Ce6.4 glass-forming alloy by large-area electron beam irradiation

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