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

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

Original Reports | 更新时间：2026-08-19

- Novel single crystalline-like non-equiatomic TiZrHfNbTaMo bio-high entropy alloy (BioHEA) developed by laser powder bed fusion
- Materials Research Letters Vol. 11, Issue 4, Pages: 274-280(2023)
- 作者机构：
  
  1. b Anisotropic Design and Additive Manufacturing Research Center Osaka University
  2. a Division of Materials and Manufacturing Science Graduate School of Engineering Osaka University Osaka Japan
  3. b Anisotropic Design and Additive Manufacturing Research Center Osaka University Osaka Japan
  4. c Aluninium Research Center University of Toyama
  5. a Division of Materials and Manufacturing Science Graduate School of Engineering Osaka University
  6. d TANIOBIS GmbH
  7. e Department of Materials Science and Engineering Pohang University of Science and Technology
  8. f Graduate School of Engineering Osaka University
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2022.2147406
  CLC：
- Online First：29 November 2022，
  
  Published：2023
- 稿件说明：
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Ozkan Gokcekaya, Takuya Ishimoto, Yuki Nishikawa, et al. Novel single crystalline-like non-equiatomic TiZrHfNbTaMo bio-high entropy alloy (BioHEA) developed by laser powder bed fusion[J]. Materials Research Letters, 2023, 11(4): 274-280.
DOI：

Ozkan Gokcekaya, Takuya Ishimoto, Yuki Nishikawa, et al. Novel single crystalline-like non-equiatomic TiZrHfNbTaMo bio-high entropy alloy (BioHEA) developed by laser powder bed fusion[J]. Materials Research Letters, 2023, 11(4): 274-280. DOI： 10.1080/21663831.2022.2147406.

摘要

Abstract

This study developed a non-equiatomic Ti

28.33

6.74

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.

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