An additively manufactured AlCuMnZr alloy microstructure and tensile mechanical properties

Shyam, Amit; Plotkowski, Alex; Bahl, Sumit; Sisco, Kevin; Allard, Lawrence F.; Yang, Ying; Haynes, J. Allen; Dehoff, Ryan R.

doi:10.1016/j.mtla.2020.100758

Cited by 46 publications

(22 citation statements)

References 43 publications

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“…Alloys based at or near eutectic compositions are not prone to hot tearing/hot cracking, as they have a narrow freezing range during solidification, much 3V-1.7Si [132], and (d) Al-8.6Cu-0.45Mn-0.9Zr [65]. In (c), FZ is the fusion zone.…”

Section: Solidification and Thermal Stress-induced Crackingmentioning

confidence: 99%

“…The high-diffusivity Si in the reinforcing eutectic network of this alloy contributes to rapid coarsening and decrease in strength by reduction of Orowan strengthening contribution above ∼200°C. The grain refinement by Al 3 (Zr,Sc) [47,65,115], solid-solution strengthening by Mg and/ or Mn [47,65,115,126], and refined intermetallic networks [65,126] all contribute to the improvement in strength in the AM HTPSAs and HiFI alloys. As the tests are performed on as-printed alloys, strengthening by Al 3 (Zr,Sc) nanoprecipitates in the HTPSAs with Zr/Sc is assumed to be negligible.…”

Section: Measurements Of High-temperature Strengthmentioning

confidence: 99%

“…Figure 19. (a-b) Yield strength and (c) elongation as a function of temperature for LPBF-processed Al-10Ce-8Mn[126], Al-2.9Mg-2.1Zr[47], Al-14.1Mg-0.47Si-0.31Sc-0.17Zr[115], Al-8.6Cu-0.45Mn-0.90Zr[65], Al-12.1Si-1.4Ni-1.4Fe[277], Al-2.3Cu-1.6Mg-1.1Ni-0.8Fe-3.5Ti-1.2B[263], Al-10Si-0.3Mg with 2 vol.-% 2-4μm-TiCN[262], CP-Al with 35 vol.-% TiC[155], and Al-29.9Nd-7.6Ni-3.1Co[278]. For comparison, data for AM Al-10Si-0.3Mg are also shown[279].…”

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confidence: 99%

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Towards high-temperature applications of aluminium alloys enabled by additive manufacturing

Michi

Plotkowski

Shyam

et al. 2021

International Materials Reviews

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147

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Research on powder-based additive manufacturing of aluminium alloys is rapidly increasing, and recent breakthroughs in printing of defect-free parts promise substantial movement beyond traditional Al-Si-Mg) systems. One potential technological advantage of aluminium additive manufacturing, however, has received little attention: the design of alloys for use at T >~200°C, or~1/2 of the absolute melting temperature of aluminium. Besides offering lightweighting and improved energy efficiency through replacement of ferrous, titanium, and nickel-based alloys at 200-450°C, development of such alloys will reduce economic roadblocks for widespread implementation of aluminium additive manufacturing. We herein review the existing additive manufacturing literature for three categories of potential hightemperature alloys, discuss strategies for optimizing microstructures for elevatedtemperature performance, and highlight gaps in current research. Although extensive microstructural characterisation has been performed on these alloys, we conclude that evaluations of their high-temperature mechanical properties and corrosion responses are severely deficient.

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Section: Solidification and Thermal Stress-induced Crackingmentioning

confidence: 99%

Section: Measurements Of High-temperature Strengthmentioning

confidence: 99%

mentioning

confidence: 99%

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Towards high-temperature applications of aluminium alloys enabled by additive manufacturing

Michi

Plotkowski

Shyam

et al. 2021

International Materials Reviews

Self Cite

147

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“…To meet the growing demand for lightweight components in the automotive and aerospace sectors, many researchers have used LPBF to fabricate high-performance aluminium (Al) alloys and composites. A variety of Alalloys have been successfully printed using LPBF, including Al-Si [4], Al-Si-Mg [5,6], Scalmalloy [7,8], Al-Mn-Sc [9,10], Al-Mg-Si-Sc [11,12], Al-Cu [13,14] and Al-matrix composites [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

“…sprin ger. com/ journ al/ 40195 * Biao Cai b.cai@bham.ac.uk solidification associated with laser heating [2,9,11,[18][19][20][21][22][23][24]. This is the main reason why there is a limited number of Al alloys that can be fabricated by LPBF.…”

Section: Introductionmentioning

confidence: 99%

Synchrotron Characterisation of Ultra-Fine Grain TiB2/Al-Cu Composite Fabricated by Laser Powder Bed Fusion

Cai

Duan

et al. 2021

Acta Metall. Sin. (Engl. Lett.)

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Isotropy in microstructure and mechanical properties remains a challenge for laser powder bed fusion (LPBF) processed materials due to the epitaxial growth and rapid cooling in LPBF. In this study, a high-strength TiB2/Al-Cu composite with random texture was successfully fabricated by laser powder bed fusion (LPBF) using pre-doped TiB2/Al-Cu composite powder. A series of advanced characterisation techniques, including synchrotron X-ray tomography, correlative focussed ion beam–scanning electron microscopy (FIB-SEM), scanning transmission electron microscopy (STEM), and synchrotron in situ X-ray diffraction, were applied to investigate the defects and microstructure of the as-fabricated TiB2/Al-Cu composite across multiple length scales. The study showed ultra-fine grains with an average grain size of about 0.86 μm, and a random texture was formed in the as-fabricated condition due to rapid solidification and the TiB2 particles promoting heterogeneous nucleation. The yield strength and total elongation of the as-fabricated composite were 317 MPa and 10%, respectively. The contributions of fine grains, solid solutions, dislocations, particles, and Guinier–Preston (GP) zones were calculated. Failure was found to be initiated from the largest lack-of-fusion pore, as revealed by in situ synchrotron tomography during tensile loading. In situ synchrotron diffraction was used to characterise the lattice strain evolution during tensile loading, providing important data for the development of crystal-plasticity models.

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Recent progress on the control strategies of microstructure and mechanical properties of LPBF-printed aluminum alloys

Wang,

Zou

et al. 2024

Int J Adv Manuf Technol

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An additively manufactured AlCuMnZr alloy microstructure and tensile mechanical properties

Cited by 46 publications

References 43 publications

Towards high-temperature applications of aluminium alloys enabled by additive manufacturing

Towards high-temperature applications of aluminium alloys enabled by additive manufacturing

Synchrotron Characterisation of Ultra-Fine Grain TiB2/Al-Cu Composite Fabricated by Laser Powder Bed Fusion

Recent progress on the control strategies of microstructure and mechanical properties of LPBF-printed aluminum alloys

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