Enhanced mechanical properties of Ti6Al4V alloy fabricated by laser additive manufacturing under static magnetic field

Ruixin Zhao; Chaoyue Chen; Sansan Shuai; Tao Hu; Yves Fautrelle; Hanlin Liao; Jian Lu; Jiang Wang; Zhongming Ren

doi:10.1080/21663831.2022.2064195

Enhanced mechanical properties of Ti6Al4V alloy fabricated by laser additive manufacturing under static magnetic field

Ruixin Zhao, Chaoyue Chen^*, Sansan Shuai, Tao Hu, Yves Fautrelle, Hanlin Liao, Jian Lu, Jiang Wang^*, Zhongming Ren

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

91 Citations (Scopus)

163 Downloads (CityUHK Scholars)

Abstract

This study introduced a novel magnetic-field regulation method in metallic additive manufacturing to achieve the refined grain structure and enhanced mechanical properties without post-treatment and composition changes. As a showcase material, the Ti6Al4V alloy was fabricated using direct energy deposition under the static magnetic field (SMF). It is found that the transverse SMF of 0.55 T can effectively regulate the microstructure with twisted prior-β grains (strong <001> orientation to weak <001> orientation) and discontinuous alpha grain boundaries. The tensile test shows a significant improvement of tensile elongation (ε_f) in both longitudinal and transverse directions with a slight strength decrease.

Original language	English
Pages (from-to)	530-538
Journal	Materials Research Letters
Volume	10
Issue number	8
Online published	20 Apr 2022
DOIs	https://doi.org/10.1080/21663831.2022.2064195
Publication status	Published - 2022

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 9 Industry, Innovation, and Infrastructure

Research Keywords

Laser deposition
titanium alloys
magnetic field
texture
BETA-GRAIN-BOUNDARIES
PHASE-TRANSFORMATION
TITANIUM-ALLOY
HEAT-TREATMENT
ALPHA-PHASE
MICROSTRUCTURE
DEPOSITION
DUCTILITY
BEHAVIOR

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This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

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title = "Enhanced mechanical properties of Ti6Al4V alloy fabricated by laser additive manufacturing under static magnetic field",

abstract = "This study introduced a novel magnetic-field regulation method in metallic additive manufacturing to achieve the refined grain structure and enhanced mechanical properties without post-treatment and composition changes. As a showcase material, the Ti6Al4V alloy was fabricated using direct energy deposition under the static magnetic field (SMF). It is found that the transverse SMF of 0.55 T can effectively regulate the microstructure with twisted prior-β grains (strong <001> orientation to weak <001> orientation) and discontinuous alpha grain boundaries. The tensile test shows a significant improvement of tensile elongation (εf) in both longitudinal and transverse directions with a slight strength decrease.",

keywords = "Laser deposition, titanium alloys, magnetic field, texture, BETA-GRAIN-BOUNDARIES, PHASE-TRANSFORMATION, TITANIUM-ALLOY, HEAT-TREATMENT, ALPHA-PHASE, MICROSTRUCTURE, DEPOSITION, DUCTILITY, BEHAVIOR",

author = "Ruixin Zhao and Chaoyue Chen and Sansan Shuai and Tao Hu and Yves Fautrelle and Hanlin Liao and Jian Lu and Jiang Wang and Zhongming Ren",

year = "2022",

doi = "10.1080/21663831.2022.2064195",

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pages = "530--538",

journal = "Materials Research Letters",

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TY - JOUR

T1 - Enhanced mechanical properties of Ti6Al4V alloy fabricated by laser additive manufacturing under static magnetic field

AU - Zhao, Ruixin

AU - Chen, Chaoyue

AU - Shuai, Sansan

AU - Hu, Tao

AU - Fautrelle, Yves

AU - Liao, Hanlin

AU - Lu, Jian

AU - Wang, Jiang

AU - Ren, Zhongming

PY - 2022

Y1 - 2022

N2 - This study introduced a novel magnetic-field regulation method in metallic additive manufacturing to achieve the refined grain structure and enhanced mechanical properties without post-treatment and composition changes. As a showcase material, the Ti6Al4V alloy was fabricated using direct energy deposition under the static magnetic field (SMF). It is found that the transverse SMF of 0.55 T can effectively regulate the microstructure with twisted prior-β grains (strong <001> orientation to weak <001> orientation) and discontinuous alpha grain boundaries. The tensile test shows a significant improvement of tensile elongation (εf) in both longitudinal and transverse directions with a slight strength decrease.

AB - This study introduced a novel magnetic-field regulation method in metallic additive manufacturing to achieve the refined grain structure and enhanced mechanical properties without post-treatment and composition changes. As a showcase material, the Ti6Al4V alloy was fabricated using direct energy deposition under the static magnetic field (SMF). It is found that the transverse SMF of 0.55 T can effectively regulate the microstructure with twisted prior-β grains (strong <001> orientation to weak <001> orientation) and discontinuous alpha grain boundaries. The tensile test shows a significant improvement of tensile elongation (εf) in both longitudinal and transverse directions with a slight strength decrease.

KW - Laser deposition

KW - titanium alloys

KW - magnetic field

KW - texture

KW - BETA-GRAIN-BOUNDARIES

KW - PHASE-TRANSFORMATION

KW - TITANIUM-ALLOY

KW - HEAT-TREATMENT

KW - ALPHA-PHASE

KW - MICROSTRUCTURE

KW - DEPOSITION

KW - DUCTILITY

KW - BEHAVIOR

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U2 - 10.1080/21663831.2022.2064195

DO - 10.1080/21663831.2022.2064195

M3 - RGC 21 - Publication in refereed journal

SN - 2166-3831

VL - 10

SP - 530

EP - 538

JO - Materials Research Letters

JF - Materials Research Letters

IS - 8

ER -

Enhanced mechanical properties of Ti6Al4V alloy fabricated by laser additive manufacturing under static magnetic field

Abstract

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Research Keywords

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