Wire + Arc Additively Manufactured Inconel 718: Effect of post-deposition heat treatments on microstructure and tensile properties

Seow, Cui Er; Coules, Harry; Wu, Guiyi; Khan, Raja H.U.; Xu, Xin; Williams, Stewart

doi:10.1016/j.matdes.2019.108157

Cited by 116 publications

(56 citation statements)

References 40 publications

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“…Automotive [11], Marine [115], Tools and molds [116] Nickel alloy [75] [ 117] [102,118] Inconel 718 [119], Inconel 625 [120] Aerospace [121], corrosion resistance [122], high temperature [123] Refractories [124] Tungsten [49], Molybdenum [124], Tantalum [124] Nuclear , Heat exchanger [124] Other CuSi3 [125], Bronze [126], Invar [116], Shape memory alloy [127] In summary, it has been observed that, in most of the research, a straight wall has been fabricated using WAAM and samples have been taken out from it to carry out the microstructural analysis and mechanical tests to determine its mechanical properties such as tensile strength, hardness, toughness, etc.…”

Section: Dissimilar Alloymentioning

confidence: 99%

Wire Arc Additive Manufacturing: A Comprehensive Review and Research Directions

Raut

Taiwade

2021

J. of Materi Eng and Perform

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Over the past years, the demand for the wire arc additive manufacturing (WAAM) is potentially increased, and it has become a promising alternative to subtractive manufacturing. Research reported that the wire arc additively manufactured (WAAMed) materialÕs mechanical properties are comparable to wrought or cast material. In comparison with other fusion sources, WAAM offers a significant cost saving and a higher deposition rate. However, there are significant challenges associated with WAAM such as undesirable microstructures and mechanical properties, high residual stresses, and distortion. Thus, more research is still needed to handle the above challenges by optimizing the process parameters and post-deposition heat treatment. In line with the above, this paper attempts to fill the gap by presenting a comprehensive review of WAAM literature including stagewise development of WAAM, metals and alloys used, effects of process parameters, methodologies used by various researchers to improve the quality of WAAM component. Besides, this work proposes the areas that could be used as avenues for future research.

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Section: Dissimilar Alloymentioning

confidence: 99%

Wire Arc Additive Manufacturing: A Comprehensive Review and Research Directions

Raut

Taiwade

2021

J. of Materi Eng and Perform

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“…WAAM has been used to deposit a wide range of materials, such as mild steels, [ 3,4 ] Ni‐based alloys, [ 5,6 ] and titanium alloys. [ 7,8 ] A common remark is that fully dense parts are obtained with better mechanical properties than the as‐cast ones.…”

Section: Introductionmentioning

confidence: 99%

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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“…The alloy is vulnerable to severe segregation during solidification. Nb is one of the essential elements for the formation of the NbC and Laves phase [13]. Ye et al [14] reported that the solidification cracking of IN718 is closely related to the carbides and Laves eutectic constituents that formed along the grain boundaries.…”

Section: Introductionmentioning

confidence: 99%

Influence of Heat Input on the Formation of Laves Phases and Hot Cracking in Plasma Arc Welding (PAW) Additive Manufacturing of Inconel 718

Artaza

Bhujangrao

Suárez

et al. 2020

Metals

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Nickel-based alloys have had extensive immersion in the manufacturing world in recent decades, especially in high added value sectors such as the aeronautical sector. Inconel 718 is the most widespread in terms of implantation. Therefore, the interest in adapting the manufacture of this material to additive manufacturing technologies is a significant objective within the scientific community. Among these technologies for the manufacture of parts by material deposition, plasma arc welding (PAW) has advantages derived from its simplicity for automation and integration on the work floor with high deposition ratios. These characteristics make it very economically appetizing. However, given the tendency of this material to form precipitates in its microstructure, its manufacturing by additive methods is very challenging. In this article, three deposition conditions are analyzed in which the energy and deposition ratio used are varied, and two cooling strategies are studied. The interpass cooling strategy (ICS) in which a fixed time is expected between passes and controlled overlay strategy (COS) in which the temperature at which the next welding pass starts is controlled. This COS strategy turns out to be advantageous from the point of view of the manufacturing time, but the deposition conditions must be correctly defined to avoid the formation of Laves phases and hot cracking in the final workpiece.

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Wire + Arc Additively Manufactured Inconel 718: Effect of post-deposition heat treatments on microstructure and tensile properties

Cited by 116 publications

References 40 publications

Wire Arc Additive Manufacturing: A Comprehensive Review and Research Directions

Wire Arc Additive Manufacturing: A Comprehensive Review and Research Directions

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

Influence of Heat Input on the Formation of Laves Phases and Hot Cracking in Plasma Arc Welding (PAW) Additive Manufacturing of Inconel 718

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Wire + Arc Additively Manufactured Inconel 718: Effect of post-deposition heat treatments on microstructure and tensile properties

Cited by 116 publications

References 40 publications

Wire Arc Additive Manufacturing: A Comprehensive Review and Research Directions

Wire Arc Additive Manufacturing: A Comprehensive Review and Research Directions

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

Influence of Heat Input on the Formation of Laves Phases and Hot Cracking in Plasma Arc Welding (PAW) Additive Manufacturing of Inconel 718

Contact Info

Product

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About

Wire + Arc Additively Manufactured Inconel 718: Effect of post-deposition heat treatments on microstructure and tensile properties