Improved Compressive, Damping and Coefficient of Thermal Expansion Response of Mg–3Al–2.5La Alloy Using Y2O3 Nano Reinforcement

Kumar, Amit; Tun, Khin Sandar; Kohadkar, Amit Devendra; Gupta, Manoj

doi:10.3390/met7030104

Cited by 9 publications

(3 citation statements)

References 34 publications

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“…• diffraction angles representing the prismatic plane (1 0 0), basal plane (0 0 2) and pyramidal plane (1 0 1) [18]. The presence of only Mg phase in Fig.…”

Section: X-ray Diffraction Analysismentioning

confidence: 99%

Enhancing compressive response of Mg-6Al alloy using Al2O3 nanoparticles

Mardi¹,

Mallick²,

Dixit³

et al. 2018

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In this study, Mg-6Al/Al2O3 nanocomposites were synthesized using disintegrated melt deposition technique followed by hot extrusion. Two different amounts of alumina nanoparticles (0.66 and 1.11 wt.%) were added into Mg-6Al matrix. Microstructure and mechanical properties were investigated. Results of XRD analysis revealed that the presence of alumina nanoparticles assisted in randomization of texture (basal to prismatic). The compressive response regarding hardness and compressive strength was assessed using nanoindentation and compressive tests. The results of hardness, modulus of elasticity, compressive strength and the deformation behavior of the composites were compared with pure Mg and Mg-6Al alloy. In all the cases, the composites exhibit better mechanical properties.K e y w o r d s : Mg-6Al alloy, Al2O3 nanoparticles, microstructure, compression, nanoindentation

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“…• diffraction angles representing the prismatic plane (1 0 0), basal plane (0 0 2) and pyramidal plane (1 0 1) [18]. The presence of only Mg phase in Fig.…”

Section: X-ray Diffraction Analysismentioning

confidence: 99%

Enhancing compressive response of Mg-6Al alloy using Al2O3 nanoparticles

Mardi¹,

Mallick²,

Dixit³

et al. 2018

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“…Furthermore, despite alloying elements and heat treatment, which play a significant role in enhancing mechanical and damping properties, nanomaterials as a reinforcing phase are also attracting more attention from researchers for obtaining materials with more desirable properties. Nanoparticles with a range of 1–100 nm and a large surface area to the volume ratios show full potential in enhancing the functional properties of metals by impeding the dislocation motion 17 , 18 .…”

Section: Introductionmentioning

confidence: 99%

Effects of carbon nanotube addition on the microstructures, martensitic transformation, and internal friction of Cu–Al–Ni shape-memory alloys

Gholami-Kermanshahi,

Hsiao,

Lange

et al. 2023

Sci Rep

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In this study, we analyze the influences of carbon nanotube (CNT) addition on the martensite transformation and internal friction of Cu–Al–Ni shape-memory alloys (SMAs). X-ray diffraction and differential scanning calorimetry results demonstrate that Cu–13.5Al–4Ni–xCNT (x = 0, 0.2, 0.4, 0.6, and 0.8 wt%) SMA/CNT composites exhibit a $${\upbeta }_{1}({\mathrm{DO}}_{3})\rightleftarrows {\upbeta }_{1}^{\mathrm{^{\prime}}}(18\mathrm{R})$$ β 1 ( DO 3 ) ⇄ β 1 ′ ( 18 R ) martensitic transformation. The martensitic transformation temperatures and transformation enthalpies of the martensitic transformation peaks for the Cu–13.5Al–4Ni–xCNT (x = 0–0.8 wt%) composites gradually decrease with the increase in the amount of CNT addition. Compared to the Cu–13.5Al–4Ni SMA, the Cu–13.5Al–4Ni–xCNT (x = 0.2–0.8 wt%) SMA/CNT composites exhibit significant improvements in the amount of dissipation of energy (storage modulus ($${E}^{\prime}))$$ E ′ ) ) and mechanical strength. However, the tan δ of the internal friction peak gradually decreases with the increase in the CNT content above 0.6 wt%. The reduction in tan δ is attributed to the decrease in the magnitude of the austenite-to-martensite transformation and precipitation of γ2 (Cu9Al4) phase particles, which impede the interface motion in between the parent/martensitic phase and martensitic phase.

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“…In this study, Mg-3Al alloy was chosen to be the base alloy, as it is the major composition with high ductility (Youn et al, 2016). Mg-3Al alloy also equips with enhanced compressive yield strength compared to other Mg alloys (Kumar et al, 2017). According to the available resources, 7 other elements were selected to be added into Mg alloy.…”

Section: Design Proceduresmentioning

confidence: 99%

UQ eSpace

Li¹

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Magnesium [Mg] alloys have been widely employed in automotive and aerospace industries due to its high specific strength and low weight. However, the majority of the researches only focuses on the interactions between Mg and other individual solute. The field of investigating the effects by applying more alloying elements is less covered. There is also no breakthrough has been shown in designing the alloy by using computational technique. This thesis aimed to discover a new magnesium-3% aluminium [Al] based alloy with improved hardness. In this study, various contents of titanium, tin, silicon, calcium, manganese, zinc and yttrium were added into Mg-3Al based alloys based on the orthogonal arrays created by the Taguchi method. The results indicated that increased hardness has been achieved via solid solution strengthening and ageing hardening. The effectiveness of the Taguchi method has also been proven.

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Improved Compressive, Damping and Coefficient of Thermal Expansion Response of Mg–3Al–2.5La Alloy Using Y2O3 Nano Reinforcement

Cited by 9 publications

References 34 publications

Enhancing compressive response of Mg-6Al alloy using Al2O3 nanoparticles

Enhancing compressive response of Mg-6Al alloy using Al2O3 nanoparticles

Effects of carbon nanotube addition on the microstructures, martensitic transformation, and internal friction of Cu–Al–Ni shape-memory alloys

UQ eSpace

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