Experimental analysis and thermodynamic calculations of an additively manufactured functionally graded material of V to Invar 36

Bobbio, Lourdes D.; Bocklund, Brandon; Otis, Richard; Borgonia, John Paul; Dillon, R. Peter; Shapiro, Andrew A.; McEnerney, Bryan W.; Liu, Zhe; Beese, Allison M.

doi:10.1557/jmr.2018.92

Cited by 22 publications

(7 citation statements)

References 25 publications

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“…Hence, the CALPHAD method can be used to predict the phase formation during processing based on the phase diagram, and the processing temperature can be controlled in the ideal range to avoid the appearance of secondary phases (Bobbio et al 2018).…”

Section: Brittle Intermetallic Phasesmentioning

confidence: 99%

Recent progress and scientific challenges in multi-material additive manufacturing via laser-based powder bed fusion

Wei¹,

Li²

2021

Virtual and Physical Prototyping

156

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Multi-material additive manufacturing provides a new route for fabricating components with tailored physical properties. Laser-based powder bed fusion (L-PBF), also known as selective laser melting, is a powder bed-based additive manufacturing technology. This technology affords the advantage of manufacturing metallic and non-metallic materials with high geometrical resolution. An emerging field relevant to the foregoing is multi-material L-PBF. This paper reviews the latest progress in this field including multiple material powder deposition mechanisms, molten pool behaviour, process characteristics of printing metal-metal, metal-ceramic, and metal-polymer multiple material components, and potential applications. Finally, scientific and technological challenges are presented.

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Section: Brittle Intermetallic Phasesmentioning

confidence: 99%

Recent progress and scientific challenges in multi-material additive manufacturing via laser-based powder bed fusion

Wei¹,

Li²

2021

Virtual and Physical Prototyping

156

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“…In particular, the CTE mismatch between FeTi and Fe 2 Ti, which were intertwined in a dendritic solidification structure, was hypothesised to be the root of major cracking in this FGM. V to Fe–Ni alloy Invar 36 [191] was performed by Bobbio et al as a proposed intermediate grading between terminal alloys of Ti–6Al–4V and Invar. In this FGM, the amount of V was decreased by 3 vol% per layer, and replaced with Invar.…”

Section: Previous Workmentioning

confidence: 99%

Advances in additive manufacturing of metal-based functionally graded materials

Reichardt

Shapiro

Otis

et al. 2020

International Materials Reviews

Self Cite

212

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Over the 2010s technological improvements allowed metal additive manufacturing to graduate from a prototyping tool to a widespread, full-scale manufacturing process. Among the capabilities still under development, however, is the ability to locally tailor alloy composition and properties to fabricate bulk, complex geometry functionally graded materials (FGMs), eliminating the need for dissimilar-metal welds and joints. The challenge of compositional grading involves overcoming chemical, metallurgical, and thermal property differences to achieve a continuous structure between a wide range of selected combinations of alloys. In this review, examples are discussed of fabricating FGMs joining a variety of combinations of stainless, nickel, titanium and copper alloys, and FGMs joining metals to ceramics and metalmatrix composites. The change in design strategy enabled by practical FGMs may lead to effective use of biomimetic designs that are both much more efficient as well as aesthetically pleasing.

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“…In centrifugal casting, different temperature ranges cause improper solidification, 24,25 and in additive manufacturing, it occurs because of rapid heating and solidification. 26,27 Estimation of material properties of porous FGMs is an important research area, for perfect FGMs there is an empirical relation, but there are unknowns such as stress–strain transfer ratio ( q ) which are unquantifiable mathematically and so experiments are being conducted. 28 For a few material combination, experiments were performed to investigate q , but its dependency lies on several factors.…”

Section: Introductionmentioning

confidence: 99%

Thermal buckling in multi-directional porous plates: The effects of material grading and aspect ratio

Hadji,

Madan,

Bernard

2024

Proceedings of the Institution of Mechanical Engineers, Part G:

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In the present study, a trigonometric shear deformation plate theory was employed to perform a thermal buckling analysis of multi-directional functionally graded (FG) plates. During the manufacturing of the multi-directional graded plate, the formation of pores is abounded. Hence, the effect of porosity on the buckling performance was investigated by considering the variation of porosity in the plate for power law gradation variation of material properties. The adverse effect of porosity on the material properties was taken into account by employing the rule of mixture relation. Finite element results show that the thermal expansion coefficient is unaffected by the presence of porosity. For simply supported boundary conditions, the non-linear governing equations are solved for different thermal loads such as uniform, linear, and non-linear. A parametric study was performed in which the effect of grading parameters, aspect ratio, and side-to-thickness ratio under variable temperature change was studies. Critical material grading indices for multi-directional plates have been identified that help researchers and industry personnel in fabrication planning.

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Experimental analysis and thermodynamic calculations of an additively manufactured functionally graded material of V to Invar 36

Abstract: Abstract

Cited by 22 publications

References 25 publications

Recent progress and scientific challenges in multi-material additive manufacturing via laser-based powder bed fusion

Recent progress and scientific challenges in multi-material additive manufacturing via laser-based powder bed fusion

Advances in additive manufacturing of metal-based functionally graded materials

Thermal buckling in multi-directional porous plates: The effects of material grading and aspect ratio

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