Tensile behavior of stainless steel 304L to Ni-20Cr functionally graded material: Experimental characterization and computational simulations

Bobbio, Lourdes D.; Bocklund, Brandon; Liu, Zhe; Beese, Allison M.

doi:10.1016/j.mtla.2021.101151

Cited by 17 publications

(5 citation statements)

References 32 publications

(36 reference statements)

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“…Moreover, the nanohardness of Ni-20Cr-HIP was observed to be the lowest, whereas it was the highest for Ni-20Cr-AS deposits. It is worth mentioning that the elastic modulus of all the Ni-20Cr deposits was found to be closer to that of the Ni-20Cr bulk material (214 GPa) [24], which is a desirable attribute for the cold spray process to qualify as an additive manufacturing approach. The load-displacement curves were plotted for all the cases using the data obtained from the nanoindentation testing and represented in Figure 10.…”

Section: Mechanical Behaviormentioning

confidence: 77%

“…However, the highest percentage of elongation with the lowest UTS was observed for Ni-20Cr-HIP. The percentage elongation of the Ni-20Cr-HIP is equal to the percentage elongation of the bulk Ni-20Cr[24,28]. Ni-20Cr-AS showed moderate UTS with the least percentage of elongation.…”

mentioning

confidence: 96%

“…Comparison of macro tensile data of the cold spray additive manufactured Ni-20Cr thick plates in as-sprayed, substrate heated, and hot-isostatic pressing treated conditions with that of bulk Ni-20Cr alloy[24].…”

mentioning

confidence: 99%

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Characterization and High-Temperature Oxidation Behavior of Ni–20Cr Deposits Fabricated by Cold Spray-Based Additive Manufacturing

Singh

et al. 2023

Coatings

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Hot corrosion is a critical problem in a wide range of high-temperature applications. Ni–20Cr alloy is frequently used in such applications owing to its good hot-corrosion resistance. In the current work, thick Ni–20Cr plates in a thickness range of 6–10 mm were fabricated using cold spray-based additive manufacturing (CSAM). High-pressure cold spraying was used with nitrogen as the propellant gas. Pre- (substrate heating, SH) and post-heat treatments (hot isostatic pressing, HIP) were also performed to comprehend the changes in the deposit properties. The deposits were subjected to microstructural and mechanical characterization to explore the potential of cold spraying for CSAM of Ni–20Cr standalone products. The cold-sprayed plates were successfully developed without any oxide formation. HIP treatment was found to be useful to reduce porosity. The cold-sprayed substrate-heated Ni–20Cr deposits exhibited excellent oxidation resistance at a high temperature of 900 °C.

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Section: Mechanical Behaviormentioning

confidence: 77%

mentioning

confidence: 96%

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Characterization and High-Temperature Oxidation Behavior of Ni–20Cr Deposits Fabricated by Cold Spray-Based Additive Manufacturing

Singh

et al. 2023

Coatings

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“…[16] While significant challenges exist when grading disparate materials, particularly relating to the formation of undesirable brittle phases along compositional pathways, significant progress was made in DED of hybrid and functionally graded materials, with much research focusing on titanium/molybdenum, [17,18] ferritic/austenitic steels, [19] steel/Inconel, [20,21] and novel functionally graded structures with multiple intermediate compositions. [22][23][24] The formation of undesirable brittle phases is a challenge that is exacerbated when multiple principal element alloys are used, for which the complex multidimensional thermodynamic space is not fully explored.…”

Section: Introductionmentioning

confidence: 99%

Microstructural Control of a Multi‐Phase PH Steel Printed with Laser Powder Bed Fusion

Fields,

Amiri,

Lim

et al. 2024

Adv Materials Technologies

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The established approach to materials design for additive manufacturing (AM) consists of attempting to reproduce the uniform structures and properties of conventionally processed materials. While this certainly helped facilitate material certification and the rapid introduction of AM technologies in several industries, the opportunity to exploit unique features of specific AM processes to generate spatially varying microstructures–and hence novel materials, remains largely untapped. This work presents a method for manufacturing materials through laser powder bed fusion (LPBF), in which control over the spatial variation in phase composition and mechanical properties is achieved. This technique is demonstrated using 17‐4 precipitation‐hardened stainless steel (17‐4PH), by controlling spatial modulation of energy densities during printing. This results in local control of ferrite/martensite volume fractions, allowing the fabrication of metal/metal architected composites with hard/brittle regions interspersed with soft/tough regions. Local variations of ~20% in tensile strength and ~150% in elongation are achieved, with a spatial resolution of ~100 microns. The approach is general and robust, fully compatible with commercially available LPBF equipment, and applicable to virtually any multi‐phase alloy system. This work shifts the paradigm from attempting to print components with uniform properties to manufacturing alloys with controlled spatial property gradients.

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“…It can be found that the preparation of homogeneous composite materials has been relatively mature in various AM fields, including powder bed-based AM or energy direct deposition technology. While the gradient composites can only be prepared by energy direct deposition techniques [20][21][22][23][24][25], which is mainly due to the unique powder supply mode, that is, different composition gradients are obtained by replacing different powders. Nonetheless, in fabricating gradient composites by energy direct deposition techniques, disadvantages like higher surface roughness, lower accuracy, and lower powder recyclability compared to laser powder bed fusion (LPBF) [26,27] are obvious.…”

Section: Introductionmentioning

confidence: 99%

Composition regulation of composite materials in laser powder bed fusion additive manufacturing

Yao

Wang²,

Cai³

et al. 2022

Powder Technology

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Tensile behavior of stainless steel 304L to Ni-20Cr functionally graded material: Experimental characterization and computational simulations

Cited by 17 publications

References 32 publications

Characterization and High-Temperature Oxidation Behavior of Ni–20Cr Deposits Fabricated by Cold Spray-Based Additive Manufacturing

Characterization and High-Temperature Oxidation Behavior of Ni–20Cr Deposits Fabricated by Cold Spray-Based Additive Manufacturing

Microstructural Control of a Multi‐Phase PH Steel Printed with Laser Powder Bed Fusion

Composition regulation of composite materials in laser powder bed fusion additive manufacturing

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