Spark plasma sintering and age hardening of an Al–Zn–Mg alloy powder blend

Rudinsky, Samantha; Hendrickx, Ph.; Bishop, D.P.; Brochu, Mathieu

doi:10.1016/j.msea.2015.10.029

Cited by 15 publications

(12 citation statements)

References 27 publications

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“…The resultant spectrum (Fig. 5) indicated that α-Al and MgZn 2 were present consistent with the works of LaDelpha et al [26], Rudinsky et al [19], and Pieczonka et al [27].…”

Section: Resultssupporting

confidence: 87%

“…4b and c) had progressively lower concentrations of secondary phases suggestive that they represented transformative states of the master alloy the alloying elements diffused away from it and into adjacent grains of pure aluminum. A similar behavior has been also reported by Rudinsky et al [19] where it was ascribed to the insufficient diffusion distance of the alloying elements (Zn, Mg, Cu) to attain homogenization during SPS processing at 425°C for 1 h.…”

Section: Resultssupporting

confidence: 86%

“…This is accomplished by contributing to the rupture of the oxide layer at the surface of the pure aluminum powder, which has been demonstrated in previous studies [10][11][12][13][14][15][16][17]. However, it has been shown by Garbiec and Siwak [18] and Rudinsky et al [19] that Alumix 431 powder sintered by SPS exhibits low ductility during tensile or bending tests due to the lack of bonding between particles. It has been suggested that the formation of the spinel layer arising from the reaction of Mg and the alumina layer would impose the requirement for a higher applied load to break the oxide layer [20].…”

Section: Introductionmentioning

confidence: 86%

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Spark plasma sintering and spark plasma upsetting of an Al-Zn-Mg-Cu alloy

Tünçay

Bishop

Brochu

2017

Materials Science and Engineering: A

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Al-Zn-Mg-Cu alloy powder Alumix 431D was sintered at 400°C by spark plasma sintering (SPS) and upset forging was applied to the sintered sample through SPS. Densities of 99.1 ± 0.3% and 99.8 ± 0.1% of theoretical were obtained for the sintered and forged samples, respectively. T6 temper was carried out on the samples and microstructure analysis and mechanical properties before and after heat treatment were evaluated. Microhardness of 173 ± 3 and 172 ± 3 HV were attained in the T6 temper of as-sintered and forged samples, respectively. The flexural strength and strain values were significantly improved after the forging process, which can be mainly attributed to the better particle bonding in addition to the occurrence of some recrystallization. Significant loss in the ductility was observed after the T6 temper.

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“…The resultant spectrum (Fig. 5) indicated that α-Al and MgZn 2 were present consistent with the works of LaDelpha et al [26], Rudinsky et al [19], and Pieczonka et al [27].…”

Section: Resultssupporting

confidence: 87%

Section: Resultssupporting

confidence: 86%

Section: Introductionmentioning

confidence: 86%

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Spark plasma sintering and spark plasma upsetting of an Al-Zn-Mg-Cu alloy

Tünçay

Bishop

Brochu

2017

Materials Science and Engineering: A

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“…The SPS process contains a single operation to perform compaction and sintering of the powder sample and is efficient in simultaneously applying high pressure and rapid heating and cooling owing to the effects of PEC and spark plasma. Hence, full densification of powder samples can be obtained within a short duration and at a lower temperature as compared to conventional PM [ 120 ]. However, only simple symmetrical shapes can be fabricated using SPS technique.…”

Section: Fabrication and Post-thermomechanical Processing Of Zn-basedmentioning

confidence: 99%

Recent research and progress of biodegradable zinc alloys and composites for biomedical applications: Biomechanical and biocorrosion perspectives

Kabir

Munir

Wen

et al. 2021

Bioactive Materials

236

143

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Biodegradable metals (BMs) gradually degrade in vivo by releasing corrosion products once exposed to the physiological environment in the body. Complete dissolution of biodegradable implants assists tissue healing, with no implant residues in the surrounding tissues. In recent years, three classes of BMs have been extensively investigated, including magnesium (Mg)-based, iron (Fe)-based, and zinc (Zn)-based BMs. Among these three BMs, Mg-based materials have undergone the most clinical trials. However, Mg-based BMs generally exhibit faster degradation rates, which may not match the healing periods for bone tissue, whereas Fe-based BMs exhibit slower and less complete in vivo degradation. Zn-based BMs are now considered a new class of BMs due to their intermediate degradation rates, which fall between those of Mg-based BMs and Fe-based BMs, thus requiring extensive research to validate their suitability for biomedical applications. In the present study, recent research and development on Zn-based BMs are reviewed in conjunction with discussion of their advantages and limitations in relation to existing BMs. The underlying roles of alloy composition, microstructure, and processing technique on the mechanical and corrosion properties of Zn-based BMs are also discussed.

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“…Among the possible processing techniques for the fabrication of sandwich-shaped specimens from metal and ceramic powders, spark plasma sintering (SPS) has proven to be a suitable approach. SPS is widely used for the consolidation of ceramics [ 10 , 11 , 12 , 13 , 14 , 15 ], metals [ 16 , 17 , 18 ], intermetallics [ 19 , 20 , 21 ] and various composites [ 22 , 23 , 24 ]. Accordingly, the properties of composites comprising a high-alloy TRIP-steel reinforced with Al 2 O 3 , Mg-PSZ or Y-TZP fabricated using SPS have been studied [ 8 , 25 , 26 , 27 , 28 , 29 , 30 , 31 ].…”

Section: Introductionmentioning

confidence: 99%

Bonding of TRIP-Steel/Al2O3-(3Y)-TZP Composites and (3Y)-TZP Ceramic by a Spark Plasma Sintering (SPS) Apparatus

et al. 2016

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A combination of the high damage tolerance of TRIP-steel and the extremely low thermal conductivity of partially stabilized zirconia (PSZ) can provide controlled thermal-mechanical properties to sandwich-shaped composite specimens comprising these materials. Sintering the (TRIP-steel-PSZ)/PSZ sandwich in a single step is very difficult due to differences in the sintering temperature and densification kinetics of the composite and the ceramic powders. In the present study, we successfully applied a two-step approach involving separate SPS consolidation of pure (3Y)-TZP and composites containing 20 vol % TRIP-steel, 40 vol % Al2O3 and 40 vol % (3Y)-TZP ceramic phase, and subsequent diffusion joining of both sintered components in an SPS apparatus. The microstructure and properties of the sintered and bonded specimens were characterized. No defects at the interface between the TZP and the composite after joining in the 1050–1150 °C temperature range were observed. Only limited grain growth occurred during joining, while crystallite size, hardness, shear strength and the fraction of the monoclinic phase in the TZP ceramic virtually did not change. The slight increase of the TZP layer’s fracture toughness with the joining temperature was attributed to the effect of grain size on transformation toughening.

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Spark plasma sintering and age hardening of an Al–Zn–Mg alloy powder blend

Cited by 15 publications

References 27 publications

Spark plasma sintering and spark plasma upsetting of an Al-Zn-Mg-Cu alloy

Spark plasma sintering and spark plasma upsetting of an Al-Zn-Mg-Cu alloy

Recent research and progress of biodegradable zinc alloys and composites for biomedical applications: Biomechanical and biocorrosion perspectives

Bonding of TRIP-Steel/Al2O3-(3Y)-TZP Composites and (3Y)-TZP Ceramic by a Spark Plasma Sintering (SPS) Apparatus

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