Development of a high strength Zr/Sc/Hf-modified Al-Mn-Mg alloy using Laser Powder Bed Fusion: Design of a heterogeneous microstructure incorporating synergistic multiple strengthening mechanisms

Li, Qiuge; Li, Guichuan; Lin, Xin; Zhu, Daiman; Jiang, Jinhang; Shi, Shuoqing; Liu, Fenggang; Huang, Weidong; Vanmeensel, Kim

doi:10.1016/j.addma.2022.102967

Cited by 17 publications

(17 citation statements)

References 62 publications

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“…Alloying element-wise tensile yield strength and elongation of selected high-strength alloys [11,14,38,[41][42][43][44][45][46][47][48][49][50][51][52][53][54][55][56][57]. TE-transition element(s), AB-as-built, SA-solution treated and aged, DA-Direct aged.…”

Section: Figurementioning

confidence: 99%

Additively Manufactured High-Strength Aluminum Alloys: A Review

Zafar¹,

Reis²,

Vieira³

et al. 2024

Recent Advancements in Aluminum Alloys

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This chapter summarizes the recent advances in additive manufacturing of high-strength aluminum alloys, the challenges of printability, and defects in their builds. It further intends to provide an overview of the state of the art by outlining potential strategies for the fabrication of bulk products using these alloys without cracking. These strategies include identifying a suitable processing window of additive manufacturing using metallic powders of conventional high-strength aluminum alloys, pre-alloying the powders, and developing advanced aluminum-based composites with reinforcements introduced either by in situ or ex situ methods. The resulting microstructures and the relationship between these alloys’ microstructure and mechanical properties have been discussed. Since post-processing is inevitable in several critical applications, the chapter concludes with a brief account of post-manufacturing heat treatment processes of additively manufactured aluminum alloys.

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Section: Figurementioning

confidence: 99%

Additively Manufactured High-Strength Aluminum Alloys: A Review

Zafar¹,

Reis²,

Vieira³

et al. 2024

Recent Advancements in Aluminum Alloys

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“…Consequently, it can be concluded that these nanoprecipitates are bypassed by dislocations due to their non-shear ability. The strengthening contribution due to non-shearable nano-β ′′ can be determined based on the following equation [33,60]:…”

Section: Strengthening Mechanismsmentioning

confidence: 99%

Revealing precipitation behavior and mechanical response of wire-arc directed energy deposited Mg-Gd-Y-Zr alloy by tailoring aging procedures

Li,

Fang,

Zhang

et al. 2024

Int. J. Extrem. Manuf.

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Mg-Gd-Y-Zr alloy, as a typical magnesium rare-earth (Mg-RE) alloy, is gaining popularity in the advanced equipment manufacturing fields owing to their noticeable age-hardening properties and high specific strength. However, it is extremely challenging to prepare wrought components with large dimensions and complex shapes because of the poor room-temperature processability of Mg-Gd-Y-Zr alloy. Herein, we report a wire-arc directed energy deposited (DED) Mg-10.45Gd-2.27Y-0.52Zr (wt.%, GW102K) alloy with high RE content presenting prominent combination of strength and ductility, realized by tailored nanoprecipitates enabled by optimized heat treatment procedures. Specifically, the solution-treated sample exhibits excellent ductility with an elongation (EL) of 14.6 ± 0.1%, while the aging-treated sample at 200 ℃ for 58h achieves an ultra-high ultimate tensile strength (UTS) of 371 ± 1.5 MPa. Besides, the aging-treated sample at 250 ℃ for 16h attains a good strength-ductility synergy with an UTS of 316 ± 2.1 MPa and an EL of 8.5 ± 0.1%. Particularly, the evolution mechanisms of precipitation response induced by various aging parameters and deformation behavior caused by nanoprecipitates type were also systematically revealed. The excellent ductility resulted from coordinating localized strains facilitated by active slip activity, the ultra-high strength should be ascribed to the dense nano-β' hampering dislocation motion, while the shearable nano-β1 contributed to the good strength-ductility synergy. This work thus offers insightful understanding into the nanoprecipitates manipulation and performance tailoring for the wire-arc DED preparation of large-sized Mg-Gd-Y-Zr component with complex geometries.

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“…Relating to the ductility of the materials, the spherical morphology of the Si particles serves the purpose of stress concentrator that lowers the material ductility which is far superior as compared to the rod or needle like morphology in the traditionally produced material [145]. Zr was incrementally added to Al-Cu-Mg-Mn alloys to increase their tensile characteristics and ductility [181][182]. Additionally, Al-Mg alloys reinforced by Zr without Sc had exceptional tensile capabilities as a result of the development of Al3Zr precipitates (cuboidal), which were comparable to those of Sc-containing alloys without incurring the additional expense of adding Sc [145].…”

Section: Tensile Characteristics Of Laser-based Additively Manufactur...mentioning

confidence: 99%

Advancement of Magnesium and Aluminum Alloys in the Role of Additive Manufacturing

Sharma¹,

Grewal²,

Saxena³

et al. 2022

Preprint

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Magnesium and Aluminum alloys continue to be important in the context of modern and lightweight technologies. With the advancement of additive manufacturing (AM), components can be produced directly in a net shape, widen up the usage of magnesium and aluminum alloys as well as holding new ideas for the application of unique physical structures made feasible by 3D printing. Laser-based approach, one of the metal additive manufacturing (AM) methods, enables the formation of arbitrary 3D structures. With promising findings, research in this area is advancing quickly, bringing up a variety of potential applications in both the scientific and industrial sectors. Complex structures can now be manufactured easily utilizing AM technologies to meet the pre-requisite objectives like reduced part numbers, greater functionality, and lightweight, among others. AM has the ability to meet demands by lowering costs and speeding up the manufacturing process. Due to their popularity in numerous high-value applications, aluminum, and magnesium alloys are one of the key material systems being researched in the laser-based additive manufacturing approaches. The review here aims to comprehensively examine the additive manufacturing of magnesium and aluminum alloys, highlighting the influence of the laser-based additive manufacturing approach on the mechanical characteristics, microstructure, and tribological performance of magnesium and aluminum alloys.

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Development of a high strength Zr/Sc/Hf-modified Al-Mn-Mg alloy using Laser Powder Bed Fusion: Design of a heterogeneous microstructure incorporating synergistic multiple strengthening mechanisms

Cited by 17 publications

References 62 publications

Additively Manufactured High-Strength Aluminum Alloys: A Review

Additively Manufactured High-Strength Aluminum Alloys: A Review

Revealing precipitation behavior and mechanical response of wire-arc directed energy deposited Mg-Gd-Y-Zr alloy by tailoring aging procedures

Advancement of Magnesium and Aluminum Alloys in the Role of Additive Manufacturing

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