Novel single crystalline-like non-equiatomic TiZrHfNbTaMo bio-high entropy alloy (BioHEA) developed by laser powder bed fusion

Ozkan Gokcekaya; Takuya Ishimoto; Yuki Nishikawa; Yong Seong Kim; Aira Matsugaki; Ryosuke Ozasa; Markus Weinmann; Christoph Schnitter; Melanie Stenzel; Hyoung Seop Kim; Yoshitsugu Miyabayashi; Takayoshi Nakano

doi:10.1080/21663831.2022.2147406

Novel single crystalline-like non-equiatomic TiZrHfNbTaMo bio-high entropy alloy (BioHEA) developed by laser powder bed fusion

Ozkan Gokcekaya, Takuya Ishimoto, Yuki Nishikawa, Yong Seong Kim, Aira Matsugaki, Ryosuke Ozasa, Markus Weinmann, Christoph Schnitter, Melanie Stenzel, Hyoung Seop Kim, Yoshitsugu Miyabayashi, Takayoshi Nakano^*

^*Corresponding author for this work

Center for Aluminum and advanced Materials Research and International Collaboration, Institute of Light Metals

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

Abstract

This study developed a non-equiatomic Ti_28.33Zr_28.33Hf_28.33Nb_6.74Ta_6.74Mo_1.55 super-solid solutionized BioHEA using laser powder bed fusion (LPBF) to reach the full potential as BioHEA. We succeeded in significant suppression of elemental segregation, thus, resulting in a single crystalline-like texture by activating layer-to-layer epitaxial growth. Relatively low Young’s modulus was achieved in the single crystalline-like BioHEA. Moreover, LPBF-fabricated BioHEA exhibited significantly higher yield stress (1355–1426 MPa) due to the effective solid solution hardening compared to as-cast counterpart with marked segregation (949 MPa), and good biocompatibility. This is first report achieving BioHEA with low modulus, excellent strength-ductility balance, and good biocompatibility via LPBF.

Original language	English
Pages (from-to)	274-280
Number of pages	7
Journal	Materials Research Letters
Volume	11
Issue number	4
DOIs	https://doi.org/10.1080/21663831.2022.2147406
State	Published - 2023

Keywords

Laser powder bed fusion
crystallographic texture
high-entropy alloys
mechanical property
super solid solution

ASJC Scopus subject areas

General Materials Science

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10.1080/21663831.2022.2147406

Cite this

Gokcekaya, O., Ishimoto, T., Nishikawa, Y., Kim, Y. S., Matsugaki, A., Ozasa, R., Weinmann, M., Schnitter, C., Stenzel, M., Kim, H. S., Miyabayashi, Y., & Nakano, T. (2023). Novel single crystalline-like non-equiatomic TiZrHfNbTaMo bio-high entropy alloy (BioHEA) developed by laser powder bed fusion. Materials Research Letters, 11(4), 274-280. https://doi.org/10.1080/21663831.2022.2147406

@article{04bd04ba6a5a45199b6662a5467a1eaf,

title = "Novel single crystalline-like non-equiatomic TiZrHfNbTaMo bio-high entropy alloy (BioHEA) developed by laser powder bed fusion",

abstract = "This study developed a non-equiatomic Ti28.33Zr28.33Hf28.33Nb6.74Ta6.74Mo1.55 super-solid solutionized BioHEA using laser powder bed fusion (LPBF) to reach the full potential as BioHEA. We succeeded in significant suppression of elemental segregation, thus, resulting in a single crystalline-like texture by activating layer-to-layer epitaxial growth. Relatively low Young{\textquoteright}s modulus was achieved in the single crystalline-like BioHEA. Moreover, LPBF-fabricated BioHEA exhibited significantly higher yield stress (1355–1426 MPa) due to the effective solid solution hardening compared to as-cast counterpart with marked segregation (949 MPa), and good biocompatibility. This is first report achieving BioHEA with low modulus, excellent strength-ductility balance, and good biocompatibility via LPBF.",

keywords = "Laser powder bed fusion, crystallographic texture, high-entropy alloys, mechanical property, super solid solution",

author = "Ozkan Gokcekaya and Takuya Ishimoto and Yuki Nishikawa and Kim, {Yong Seong} and Aira Matsugaki and Ryosuke Ozasa and Markus Weinmann and Christoph Schnitter and Melanie Stenzel and Kim, {Hyoung Seop} and Yoshitsugu Miyabayashi and Takayoshi Nakano",

note = "Publisher Copyright: {\textcopyright} 2023 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.",

year = "2023",

doi = "10.1080/21663831.2022.2147406",

language = "英語",

volume = "11",

pages = "274--280",

journal = "Materials Research Letters",

issn = "2166-3831",

publisher = "Taylor and Francis Ltd.",

number = "4",

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Gokcekaya, O, Ishimoto, T, Nishikawa, Y, Kim, YS, Matsugaki, A, Ozasa, R, Weinmann, M, Schnitter, C, Stenzel, M, Kim, HS, Miyabayashi, Y & Nakano, T 2023, 'Novel single crystalline-like non-equiatomic TiZrHfNbTaMo bio-high entropy alloy (BioHEA) developed by laser powder bed fusion', Materials Research Letters, vol. 11, no. 4, pp. 274-280. https://doi.org/10.1080/21663831.2022.2147406

TY - JOUR

T1 - Novel single crystalline-like non-equiatomic TiZrHfNbTaMo bio-high entropy alloy (BioHEA) developed by laser powder bed fusion

AU - Gokcekaya, Ozkan

AU - Ishimoto, Takuya

AU - Nishikawa, Yuki

AU - Kim, Yong Seong

AU - Matsugaki, Aira

AU - Ozasa, Ryosuke

AU - Weinmann, Markus

AU - Schnitter, Christoph

AU - Stenzel, Melanie

AU - Kim, Hyoung Seop

AU - Miyabayashi, Yoshitsugu

AU - Nakano, Takayoshi

PY - 2023

Y1 - 2023

N2 - This study developed a non-equiatomic Ti28.33Zr28.33Hf28.33Nb6.74Ta6.74Mo1.55 super-solid solutionized BioHEA using laser powder bed fusion (LPBF) to reach the full potential as BioHEA. We succeeded in significant suppression of elemental segregation, thus, resulting in a single crystalline-like texture by activating layer-to-layer epitaxial growth. Relatively low Young’s modulus was achieved in the single crystalline-like BioHEA. Moreover, LPBF-fabricated BioHEA exhibited significantly higher yield stress (1355–1426 MPa) due to the effective solid solution hardening compared to as-cast counterpart with marked segregation (949 MPa), and good biocompatibility. This is first report achieving BioHEA with low modulus, excellent strength-ductility balance, and good biocompatibility via LPBF.

AB - This study developed a non-equiatomic Ti28.33Zr28.33Hf28.33Nb6.74Ta6.74Mo1.55 super-solid solutionized BioHEA using laser powder bed fusion (LPBF) to reach the full potential as BioHEA. We succeeded in significant suppression of elemental segregation, thus, resulting in a single crystalline-like texture by activating layer-to-layer epitaxial growth. Relatively low Young’s modulus was achieved in the single crystalline-like BioHEA. Moreover, LPBF-fabricated BioHEA exhibited significantly higher yield stress (1355–1426 MPa) due to the effective solid solution hardening compared to as-cast counterpart with marked segregation (949 MPa), and good biocompatibility. This is first report achieving BioHEA with low modulus, excellent strength-ductility balance, and good biocompatibility via LPBF.

KW - Laser powder bed fusion

KW - crystallographic texture

KW - high-entropy alloys

KW - mechanical property

KW - super solid solution

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U2 - 10.1080/21663831.2022.2147406

DO - 10.1080/21663831.2022.2147406

M3 - 学術論文

AN - SCOPUS:85143220617

SN - 2166-3831

VL - 11

SP - 274

EP - 280

JO - Materials Research Letters

JF - Materials Research Letters

IS - 4

ER -

Novel single crystalline-like non-equiatomic TiZrHfNbTaMo bio-high entropy alloy (BioHEA) developed by laser powder bed fusion

Abstract

Keywords

ASJC Scopus subject areas

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