In-depth study of the mechanical properties for Fe3Al based iron aluminide fabricated using the wire-arc additive manufacturing process

Shen, Chen; Pan, Zengxi; Cuiuri, Dominic; Dong, Bosheng; Li, Hui Jun

doi:10.1016/j.msea.2016.05.047

Cited by 68 publications

(19 citation statements)

References 30 publications

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“…However, the mechanical properties in the Z direction were worse than those in the Y direction, which requires adjustment of the process parameters and is the subject of an on-going investigation. In terms of elongation, the elongation of the obtained Fe-Al alloy has been improved when compared to that made from pure iron wire and pure aluminum wire using WAAM [16]. The results show that the room temperature brittleness of Fe-Al alloy can be improved by adding alloy elements.…”

Section: Tensile Propertiesmentioning

confidence: 91%

“…When the temperature is below 400 • C, a subsequent deposit was made. This method has been shown to improve the room-temperature ductility of Fe 3 Al-based iron aluminides [16].…”

Section: Materials Characterizationmentioning

confidence: 99%

“…The dispersion of these phases in the material resulted in precipitation strengthening of the buildup wall. However, according to reports in the references [1] and [15,16], the main strengthening mode of this material is solid solution strengthening, mainly the entry of aluminum atoms into the crystal of iron. As a whole, the hardness of the three samples is II > III > I, which is related to the difference in grain size.…”

Section: Micro Hardnessmentioning

confidence: 99%

“…However, the elongation of the formed material is only 3.5%. Pan et al [16] fabricated the Fe-Al functionally graded material while using WAAM with pour elongation of 2.35%.…”

Section: Introductionmentioning

confidence: 99%

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Formation of SUS304/Aluminum Alloys Using Wire and Arc Additive Manufacturing

Hao

Cai

et al. 2018

Metals

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In this study, wire and arc additive manufacturing (WAAM) was used to form SUS304/aluminum alloys. The buildup wall was well shaped using a pulse current consisting of a base current of 150 A and peak current of 200 A and a 0.2 m/min travel speed. Metallographic observation revealed that the original grains were columnar grains and transformed into equiaxed grains in the top area. The increased content of alloying elements in the fused layer improved the hardness of the buildup wall. The buildup wall formed using pulsed current exhibited improved anti-electrochemical corrosion performance when compared with that formed using constant current. The tensile strength of the alloy decreased but its elongation increased compared with those of Fe-Al alloys. The tensile fracture along the fusing direction was plastic fracture. However, the tensile fracture perpendicular to the fusing direction consisted of a combination of plastic and brittle fracture.

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Section: Tensile Propertiesmentioning

confidence: 91%

“…When the temperature is below 400 • C, a subsequent deposit was made. This method has been shown to improve the room-temperature ductility of Fe 3 Al-based iron aluminides [16].…”

Section: Materials Characterizationmentioning

confidence: 99%

Section: Micro Hardnessmentioning

confidence: 99%

“…However, the elongation of the formed material is only 3.5%. Pan et al [16] fabricated the Fe-Al functionally graded material while using WAAM with pour elongation of 2.35%.…”

Section: Introductionmentioning

confidence: 99%

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Formation of SUS304/Aluminum Alloys Using Wire and Arc Additive Manufacturing

Hao

Cai

et al. 2018

Metals

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“…In this application, the simultaneous feeding of multiple wires of different chemical compositions into the molten pool is applied in order to generate the new alloy in situ. The variety of investigated materials ranges from the production of titanium and iron aluminides to the processing of special nickel-aluminum bronze alloys [28][29][30][31][32]. Different approaches of changing the chemical composition layerwise to generate gradually graded structures have already been published [33].…”

Section: Introductionmentioning

confidence: 99%

Plasma Multiwire Technology with Alternating Wire Feed for Tailor-Made Material Properties in Wire and Arc Additive Manufacturing

Reisgen

Sharma

Oster

2019

Metals

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Wire and arc additive manufacturing (WAAM) is one of the most promising technologies for large-scale 3D printing of metal parts. Besides the high deposition rates, one of the advantages of WAAM is the possibility of using in situ alloying to modify the chemical composition and therefore the material properties of the fabricated workpiece. This can be achieved by feeding multiple wires of different chemical compositions into the molten pool of the welding process and generating a new alloy during the manufacturing process itself. At present, the chemical composition is changed stepwise by keeping the wire feed speeds per layer constant. This article describes the possibilities of generating chemically graded structures by constantly alternating the wire feed speeds of a multiwire WAAM process. This enables the chemical composition to be smoothly changed during the printing process, and generating structures with highly complex material properties. Several material combinations for different possible applications were successfully tested. Furthermore, grading strategies to avoid negative influences of low-ductility intermetallic phases were examined. The results show that low-ductility phases may even have a beneficial influence on the fracture behavior if they are combined with ductile phases. Moreover, prospective possible applications are discussed.

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Wire and Arc Additive Manufacturing of High‐Strength Low‐Alloy Steel: Microstructure and Mechanical Properties

et al. 2021

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Wire and arc additive manufacturing of high‐strength low‐alloy steel is performed. The microstructures and mechanical properties of the samples are investigated and correlated with the process heat input. Continuous and pulsed wave welding modes are studied and added material efficiencies are determined. The microstructural characterization and microhardness test reveal that the heat input effect is more impactful when parts are produced with pulsed wave mode. Microstrain evolution and phase fraction are evaluated via synchrotron X‐ray diffraction. A higher percentage of austenite in the samples built with higher heat input is determined. Uniaxial tensile testing results show that it is possible to improve ductility and mechanical strength by varying the process parameters.

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In-depth study of the mechanical properties for Fe3Al based iron aluminide fabricated using the wire-arc additive manufacturing process

Cited by 68 publications

References 30 publications

Formation of SUS304/Aluminum Alloys Using Wire and Arc Additive Manufacturing

Formation of SUS304/Aluminum Alloys Using Wire and Arc Additive Manufacturing

Plasma Multiwire Technology with Alternating Wire Feed for Tailor-Made Material Properties in Wire and Arc Additive Manufacturing

Wire and Arc Additive Manufacturing of High‐Strength Low‐Alloy Steel: Microstructure and Mechanical Properties

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