On the solidification characteristics, deformation, and functionally graded interfaces in additively manufactured hybrid aluminum alloys

Ghoncheh, M.H.; Sanjari, Mehdi; Cyr, Edward; Kelly, Josh; Pirgazi, Hadi; Shakerin, Sajad; Hadadzadeh, Amir; Amirkhiz, Babak Shalchi; Kestens, Léo; Mohammadi, Mohsen

doi:10.1016/j.ijplas.2020.102840

Cited by 41 publications

(5 citation statements)

References 83 publications

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“…7c) [24,33]. In other studies on HM [22,23,31], the grains in the first deposited layer do not show epitaxial growth, which is different from the result in this study. It is mainly attributed to that the substrate block in this study was rolled, which provides grains with preferred orientation.…”

Section: Microstructurecontrasting

confidence: 91%

“…Therefore, if the orientations of the substrate grains are different from each other, only a few grains, whose growth direction is parallel to the normal direction of the melt pool boundary or have a relatively small angle between them, will keep growing as columnar grains with orientations toward the center of the melt pool. Correspondingly those grains with unfavorable orientation will be squeezed out, and be restricted at the bottom of the melt pool forming equiaxed grains [23]. Moreover, from the IPF map in Fig.…”

Section: Microstructurementioning

confidence: 99%

“…In recent years, the HM that is to fabricate bimetals by depositing metal powder on a casting or forging substrate attracts increasing attention, for instance, MS1-Cu [21], MS1-H13 [17,22] and MS1-C300 [16] bimetals. In the study reported by Ghoncheh et al [23], the hybrid AA2618-AlSi10Mg alloy is fabricated via the direct-chill (DC) casting and the laser powder bed fusion (LPBF) process hoping to be used in the mold industry. However, even if the advantages of the two forming processes are reasonably combined, there still are about 50-μm hot cracks on the interface of the hybrid parts, which may shorten the service life.…”

Section: Introductionmentioning

confidence: 99%

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Interfacial Characteristics and Mechanical Behavior of Hybrid Manufactured AlSi10Mg–Al6061 Bimetal via Selective Laser Melting and Forging

Wang

Lin

Kang

et al. 2022

Acta Metall. Sin. (Engl. Lett.)

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Hybrid manufacturing (HM) uses additive manufacturing (AM) techniques to prepare complex or fine structures on traditional processing parts, which can fully utilize the advantages of AM to form complex parts, and the high efficiency and low cost of conventional processing methods in manufacturing regular components. A bimetal material was produced by selective laser melting (SLM) of AlSi10Mg on the deformed Al6061 alloy substrate in this study. Firstly, the interface characteristics of the two alloys were studied. The results show that a metallurgical interface with a thickness of 100-200 μm was formed as the result of the Marangoni convection during SLM preparation. In detail, the circular flow in the melt pool at the interface led to the dilution of alloying elements and the change of microstructure. Moreover, a suitable first-layer thickness can effectively suppress the hot cracks at the interfacial region. Based on the optimized results, the hybrid manufactured samples with different SLM processed volume ratios (SLM-part) to the substrate were prepared to study the mechanical properties and the deformation behavior of hybrid parts. The results show that the volume ratio of the SLM-part to the substrate had an influence on the strength and the elasto-plastic behavior by affecting the distribution of plastic deformation.

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Section: Microstructurecontrasting

confidence: 91%

Section: Microstructurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Interfacial Characteristics and Mechanical Behavior of Hybrid Manufactured AlSi10Mg–Al6061 Bimetal via Selective Laser Melting and Forging

Wang

Lin

Kang

et al. 2022

Acta Metall. Sin. (Engl. Lett.)

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“…Accordingly, the melt pool geometry and the resulting crystallographic texture can be altered by changing the laser scanning parameters and/or the hatching strategy [34][35][36][37]. Consequently, different solidification textures such as <001>||BD [24,38], <011>||BD [37] and <111>||BD [39,40] have been reported in SLM processed metals with cubic crystal structures. "…”

Section: Table 2 Plane and Direction Parallelism Conditions Between Fcc And Bcc Phases For Different Theoretical Orientation Relationshipmentioning

confidence: 99%

Texture evolution in selective laser melted maraging stainless steel CX with martensitic transformation

et al. 2020

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Due to high local cooling rates and non-equilibrium directional solidification conditions, selective laser melting (SLM) processed metals exhibit microstructural and textural features significantly different from the conventionally processed ones. The evolution of crystallographic orientations in a maraging stainless steel (commercially known as stainless steel CX) sample fabricated by the SLM process was studied through experimental and modelling approaches Electron backscattering diffraction analysis showed that the dominant texture components in martensite and austenite phases are <111>|| building direction and <011>|| building direction, respectively. Texture simulation indicated that the formation of crystallographic orientations in the studied sample is the result of two consecutive phase transformations, from initially solidified delta ferrite phase with dominant cube fiber texture to austenite and austenite to martensite.

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“…This is called hybrid additive manufacturing (HAM), which combines subtractive manufacturing or forming methods with the MAM techniques [24] . Several HAM bimetallic systems were studied recently, including Ti6Al4V-316 L, AlSi10Mg-AA2618, NAB-316 L, and steel-steel [25][26][27][28][29][30] .…”

Section: Introductionmentioning

confidence: 99%

On the bending of MS1-P20 hybrid steels additively manufactured using laser powder bed fusion

Shakerin

Sanjari²,

Pirgazi³

et al. 2022

Materialia

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On the solidification characteristics, deformation, and functionally graded interfaces in additively manufactured hybrid aluminum alloys

Cited by 41 publications

References 83 publications

Interfacial Characteristics and Mechanical Behavior of Hybrid Manufactured AlSi10Mg–Al6061 Bimetal via Selective Laser Melting and Forging

Interfacial Characteristics and Mechanical Behavior of Hybrid Manufactured AlSi10Mg–Al6061 Bimetal via Selective Laser Melting and Forging

Texture evolution in selective laser melted maraging stainless steel CX with martensitic transformation

On the bending of MS1-P20 hybrid steels additively manufactured using laser powder bed fusion

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