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Effect of volumetric energy density on microstructure and tribological properties of FeCoNiCuAl high-entropy alloy produced by laser powder bed fusion

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Effect of volumetric energy density on microstructure and tribological properties of FeCoNiCuAl high-entropy alloy produced by laser powder bed fusion. / Ren, Y.; Liang, L.; Shan, Q. et al.
In: Virtual and Physical Prototyping, Vol. 15, No. S1, 31.12.2020, p. 543-554.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Ren, Y, Liang, L, Shan, Q, Cai, A, Du, J, Huang, Q, Liu, S, Yang, X, Tian, Y & Wu, H 2020, 'Effect of volumetric energy density on microstructure and tribological properties of FeCoNiCuAl high-entropy alloy produced by laser powder bed fusion', Virtual and Physical Prototyping, vol. 15, no. S1, pp. 543-554. https://doi.org/10.1080/17452759.2020.1848284

APA

Ren, Y., Liang, L., Shan, Q., Cai, A., Du, J., Huang, Q., Liu, S., Yang, X., Tian, Y., & Wu, H. (2020). Effect of volumetric energy density on microstructure and tribological properties of FeCoNiCuAl high-entropy alloy produced by laser powder bed fusion. Virtual and Physical Prototyping, 15(S1), 543-554. https://doi.org/10.1080/17452759.2020.1848284

Vancouver

Ren Y, Liang L, Shan Q, Cai A, Du J, Huang Q et al. Effect of volumetric energy density on microstructure and tribological properties of FeCoNiCuAl high-entropy alloy produced by laser powder bed fusion. Virtual and Physical Prototyping. 2020 Dec 31;15(S1):543-554. Epub 2020 Dec 7. doi: 10.1080/17452759.2020.1848284

Author

Ren, Y. ; Liang, L. ; Shan, Q. et al. / Effect of volumetric energy density on microstructure and tribological properties of FeCoNiCuAl high-entropy alloy produced by laser powder bed fusion. In: Virtual and Physical Prototyping. 2020 ; Vol. 15, No. S1. pp. 543-554.

Bibtex

@article{f08f898d644844a1ad4206f9a00dcaf8,
title = "Effect of volumetric energy density on microstructure and tribological properties of FeCoNiCuAl high-entropy alloy produced by laser powder bed fusion",
abstract = "A near-equiatomic FeCoNiCuAl High-entropy alloy (HEA) was produced using laser powder bed fusion (L-PBF) pre-alloy powder. Microstructural characteristics and tribological properties of L-PBF specimens under various volumetric energy densities (VEDs) were investigated in detail. The results showed that the phase of L-PBF specimen consisted of BCC matrix + Cu-rich B2 precipitate. The microstructure of L-PBF specimen largely consisted of columnar grains perpendicular to the melt pool boundary (MPB) direction owing to the epitaxial growth along the temperature gradient. The preferred orientation of the L-PBF specimen was gradually transformed from the order of <001> to <101> as the VED rose. Larger size precipitates re-appeared and wider MPB were formed upon faster remelting and steeper cooling as a result of higher VED. Compared to the components produced by Spark Plasma Sintering, L-PBF specimens presented better wear resistance owing to the ultra-fine substructure and nano-scaled precipitates. In addition, the L-PBF specimen produced with 83 J/mm3 VED exhibits the highest elastic strain to failure (H/Er) and yield stress (H 2/E r3). ",
keywords = "High-entropy alloy, laser powder bed fusion, microstructure evolution, tribological behaviour, Aluminum alloys, Entropy, High-entropy alloys, Iron alloys, Microstructure, Sintering, Tribology, Wear resistance, Yield stress, Alloy powder, Columnar grain, Elastic strain, Laser powders, Micro-structural characteristics, Preferred orientations, Tribological properties, Volumetric energy densities, Cobalt alloys",
author = "Y. Ren and L. Liang and Q. Shan and A. Cai and J. Du and Q. Huang and S. Liu and X. Yang and Y. Tian and H. Wu",
year = "2020",
month = dec,
day = "31",
doi = "10.1080/17452759.2020.1848284",
language = "English",
volume = "15",
pages = "543--554",
journal = "Virtual and Physical Prototyping",
issn = "1745-2759",
publisher = "Taylor and Francis Ltd.",
number = "S1",

}

RIS

TY - JOUR

T1 - Effect of volumetric energy density on microstructure and tribological properties of FeCoNiCuAl high-entropy alloy produced by laser powder bed fusion

AU - Ren, Y.

AU - Liang, L.

AU - Shan, Q.

AU - Cai, A.

AU - Du, J.

AU - Huang, Q.

AU - Liu, S.

AU - Yang, X.

AU - Tian, Y.

AU - Wu, H.

PY - 2020/12/31

Y1 - 2020/12/31

N2 - A near-equiatomic FeCoNiCuAl High-entropy alloy (HEA) was produced using laser powder bed fusion (L-PBF) pre-alloy powder. Microstructural characteristics and tribological properties of L-PBF specimens under various volumetric energy densities (VEDs) were investigated in detail. The results showed that the phase of L-PBF specimen consisted of BCC matrix + Cu-rich B2 precipitate. The microstructure of L-PBF specimen largely consisted of columnar grains perpendicular to the melt pool boundary (MPB) direction owing to the epitaxial growth along the temperature gradient. The preferred orientation of the L-PBF specimen was gradually transformed from the order of <001> to <101> as the VED rose. Larger size precipitates re-appeared and wider MPB were formed upon faster remelting and steeper cooling as a result of higher VED. Compared to the components produced by Spark Plasma Sintering, L-PBF specimens presented better wear resistance owing to the ultra-fine substructure and nano-scaled precipitates. In addition, the L-PBF specimen produced with 83 J/mm3 VED exhibits the highest elastic strain to failure (H/Er) and yield stress (H 2/E r3). 

AB - A near-equiatomic FeCoNiCuAl High-entropy alloy (HEA) was produced using laser powder bed fusion (L-PBF) pre-alloy powder. Microstructural characteristics and tribological properties of L-PBF specimens under various volumetric energy densities (VEDs) were investigated in detail. The results showed that the phase of L-PBF specimen consisted of BCC matrix + Cu-rich B2 precipitate. The microstructure of L-PBF specimen largely consisted of columnar grains perpendicular to the melt pool boundary (MPB) direction owing to the epitaxial growth along the temperature gradient. The preferred orientation of the L-PBF specimen was gradually transformed from the order of <001> to <101> as the VED rose. Larger size precipitates re-appeared and wider MPB were formed upon faster remelting and steeper cooling as a result of higher VED. Compared to the components produced by Spark Plasma Sintering, L-PBF specimens presented better wear resistance owing to the ultra-fine substructure and nano-scaled precipitates. In addition, the L-PBF specimen produced with 83 J/mm3 VED exhibits the highest elastic strain to failure (H/Er) and yield stress (H 2/E r3). 

KW - High-entropy alloy

KW - laser powder bed fusion

KW - microstructure evolution

KW - tribological behaviour

KW - Aluminum alloys

KW - Entropy

KW - High-entropy alloys

KW - Iron alloys

KW - Microstructure

KW - Sintering

KW - Tribology

KW - Wear resistance

KW - Yield stress

KW - Alloy powder

KW - Columnar grain

KW - Elastic strain

KW - Laser powders

KW - Micro-structural characteristics

KW - Preferred orientations

KW - Tribological properties

KW - Volumetric energy densities

KW - Cobalt alloys

U2 - 10.1080/17452759.2020.1848284

DO - 10.1080/17452759.2020.1848284

M3 - Journal article

VL - 15

SP - 543

EP - 554

JO - Virtual and Physical Prototyping

JF - Virtual and Physical Prototyping

SN - 1745-2759

IS - S1

ER -