Fatigue crack growth resistance of a mesoscale composite microstructure Haynes 282 fabricated via electron beam melting additive manufacturing

Fernandez-Zelaia, Patxi; Rojas, Julio Ortega; Ferguson, John C.; Dryepondt, Sébastien; Kirka, Michael M.

doi:10.1007/s10853-021-06838-6

Cited by 8 publications

(3 citation statements)

References 38 publications

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“…A number of recent studies on the AM technique have focused on the production of nickel superalloys [ 4 , 6 , 7 ], including Haynes 282 superalloy [ 2 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

“…Studies [ 9 , 10 , 15 ] relate to other methods of additively producing Haynes 282. In study [ 9 ], samples of Haynes 282 alloy were fabricated by liquid deposition modeling (LMD).…”

Section: Introductionmentioning

confidence: 99%

“…The key parameters for reducing porosity and cracking were hatch spacing, beam focus, beam current, and scanning strategy. Fernandez-Zelaia et al [ 15 ] utilized EBM to produce the Haynes 282 alloy with a varying mesoscale structure. The authors concluded that the crack growth rate is dependent on the microstructural heterogeneity.…”

Section: Introductionmentioning

confidence: 99%

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The Impact of Plastic Deformation on the Microstructure and Tensile Strength of Haynes 282 Nickel Superalloy Produced by DMLS and Casting

et al. 2022

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The article presents the results of research on the influence of plastic deformation on the microstructure and tensile strength of Haynes 282 nickel superalloy produced by direct metal laser sintering (DMLS) and a conventional technique (casting). Samples were tested for dimensional accuracy using a 3D scanner. Then, the samples were subjected to plastic deformation by rolling. The microstructures of the DMLS and the as-cast samples were analysed using a scanning electron microscope. The strength properties of the samples were determined in a static tensile test. Microhardness measurements of the samples were also performed. Based on the analysis of the dimensional accuracy, it was found that the surface quality of the components produced by DMLS is dependent on the input parameters of the 3D printing process. Using the DMLS method, it is possible to produce Haynes 282 with a fine-crystalline microstructure containing dendrites. The fine-crystalline dendritic microstructure and low porosity showed very good tensile strength compared to the as-cast material. It was also found that the increase in the degree of plastic deformation of the as-cast Haynes 282 and the samples produced by the DMLS technique resulted in an increase in the strength of the tested samples, with reduced ductility.

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Section: Introductionmentioning

confidence: 99%

“…Studies [ 9 , 10 , 15 ] relate to other methods of additively producing Haynes 282. In study [ 9 ], samples of Haynes 282 alloy were fabricated by liquid deposition modeling (LMD).…”

Section: Introductionmentioning

confidence: 99%

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The Impact of Plastic Deformation on the Microstructure and Tensile Strength of Haynes 282 Nickel Superalloy Produced by DMLS and Casting

et al. 2022

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Hybrid Additive Manufacturing for Site‐Specific Tensile Response in 316L Stainless Steel

Mithal,

Maharjan,

Chew

et al. 2024

Adv Eng Mater

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Herein, an alternative way of achieving site‐specific mechanical properties is explored—the hybridization of a directed energy deposition technology with a secondary deformation process (hammer peening (HP)) which acts between deposited layers. By applying the peening in a selective manner, microstructure and hence mechanical properties can be locally varied. Microstructural characterization reveals recrystallization in the HP‐induced deformation zone. The columnar grains of as‐built regions with a grain size of ≈26 μm are transformed into a recrystallized zone with equiaxed grains having a size of ≈8 μm. There is also a highly strain‐hardened region below this recrystallized zone where the dislocation density is more than two times higher than in the as‐built condition. Subsequent tensile testing reveals that these microstructural zones corresponded to local enhancement in tensile strength normal to the build direction. The strengthening mechanisms are identified as Hall–Petch and dislocation (Taylor) strengthening, and their relative contributions are studied. The local strength enhancement comes at the expense of ductility in the build direction, which is studied via finite element modeling and attributed to strain localization into non‐strengthened areas. The results from this work show the possibility of achieving site‐specific properties via interlayer processing.

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Effect of microstructure on fatigue crack propagation in additive manufactured nickel-based superalloy Haynes 282: an experiment and crystal plasticity study

Cheng

Fernandez-Zelaia

et al. 2022

J Mater Sci

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Fatigue crack growth resistance of a mesoscale composite microstructure Haynes 282 fabricated via electron beam melting additive manufacturing

Cited by 8 publications

References 38 publications

The Impact of Plastic Deformation on the Microstructure and Tensile Strength of Haynes 282 Nickel Superalloy Produced by DMLS and Casting

The Impact of Plastic Deformation on the Microstructure and Tensile Strength of Haynes 282 Nickel Superalloy Produced by DMLS and Casting

Hybrid Additive Manufacturing for Site‐Specific Tensile Response in 316L Stainless Steel

Effect of microstructure on fatigue crack propagation in additive manufactured nickel-based superalloy Haynes 282: an experiment and crystal plasticity study

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