Microstructural evolution and mechanical properties of rapidly solidified thin-strip continuous cast AA5182 Al-Mg alloy under varying heat inputs in friction stir welding

Pouraliakbar, Hesam; Aval, Hamed Jamshidi; Howells, Andrew; Gallerneault, Mark; Fallah, Vahid

doi:10.1007/s00170-023-12505-8

Cited by 9 publications

(1 citation statement)

References 45 publications

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“…This attribute of FSP made it considered to be a green process and green fabrication technique 9 . The heat generated in the FSP also greatly influence the strength and properties 10 . Pan et al carried out FSP on stainless steel and obtained grain refinement at a sub-micron level with a maximum microhardness of 779HV.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and tribological behaviour of CoCrCuFeTi high entropy alloy reinforced SS304 through friction stir processing

Radhika,

Krishna,

Basak

et al. 2024

Sci Rep

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Surface modification by suitable technique aids in improving the characteristics of material to resist severe wear in demanding environments and challenging applications. The present study aims to analyse the tribological performance of Stainless Steel (SS304) reinforced with CoCrCuFeTi High Entropy Alloy (HEA) through friction stir processing and compares the results with annealed specimens. The CoCrCuFeTi HEA was ball milled and revealed irregular fragment particles with Body Centred Cubic (BCC) phase. The processed samples exhibited excellent refinement in grains with uniform HEA reinforcement distribution. The grains were observed to be in nano level post-annealing promoting exceptional microhardness. The pin-on-disc wear test was conducted by varying load (10-40N), sliding velocity (0.5–3.5 m/s) and sliding distance (500–2000 m) and the respective worn surface was analysed. The processed sample with HEA after annealing offered 29.8%, 57.4% and 58.49% improved wear resistance at the minimum level of load, sliding velocity and sliding distance than the processed base samples. The worn morphology revealed delamination, abrasion, adhesion and oxide layer formation to be the predominant wear mechanisms.

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Section: Introductionmentioning

confidence: 99%

Microstructure and tribological behaviour of CoCrCuFeTi high entropy alloy reinforced SS304 through friction stir processing

Radhika,

Krishna,

Basak

et al. 2024

Sci Rep

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Anomalous Mitigation in Phase Evolution Impacting Thermal Stability in a Rapidly Solidified AA5182 Al–Mg Alloy via Continuous Thin‐Strip Casting

Pouraliakbar,

Howells,

Gallerneault

et al. 2023

Adv Eng Mater

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This study, for the first time, reports an anomalous phase evolution and its impact on the thermal and oxidation behavior of rapidly solidified AA5182 Al–Mg alloy strip fabricated using a novel thin‐strip (TS) continuous casting technique. The microstructural analysis reveals a through‐thickness gradient microstructure of distinct types, morphology, and fractions of nonequilibrium Al–Mn–Fe intermetallic and Al–Mg eutectic phases. The rapid solidification experienced in TS casting effectively mitigates the formation of phases, particularly with the Al–Mg (β‐Al3Mg2) eutectic, being nearly absent from the near‐surface regions. The total fraction of formed phases is considerably lower than that in the slowly cooled direct‐chill counterpart. The solute macrosegregation also shows an inverse Mg segregation profile toward the strip surface primarily due to a higher degree of matrix supersaturation closer to the strip surface. Modeling of solidification successfully predicts the influence of cooling rate on the fractions of the nonequilibrium eutectic phase, agreeing well with the experimental data obtained from image analysis. Heat treating the samples over a broad temperature range unveiled unexpected improvements in oxidation resistance and excellent thermal stability, attributed to the absence of the eutectic β‐phase in subsurface regions. The research findings have practical implications for improving the properties of sheet Al–Mg alloys.

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Friction stir welding of a rapidly solidified thin-strip continuous cast AA5182 Al–Mg alloy: analysis of microstructure evolution, mechanical properties, and corrosion resistance

Pouraliakbar,

Jamshidi Aval,

Farajollahi

et al. 2024

Int J Adv Manuf Technol

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Microstructural evolution and mechanical properties of rapidly solidified thin-strip continuous cast AA5182 Al-Mg alloy under varying heat inputs in friction stir welding

Cited by 9 publications

References 45 publications

Microstructure and tribological behaviour of CoCrCuFeTi high entropy alloy reinforced SS304 through friction stir processing

Microstructure and tribological behaviour of CoCrCuFeTi high entropy alloy reinforced SS304 through friction stir processing

Anomalous Mitigation in Phase Evolution Impacting Thermal Stability in a Rapidly Solidified AA5182 Al–Mg Alloy via Continuous Thin‐Strip Casting

Friction stir welding of a rapidly solidified thin-strip continuous cast AA5182 Al–Mg alloy: analysis of microstructure evolution, mechanical properties, and corrosion resistance

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