Low cycle fatigue properties of Ti-6Al-4V alloy fabricated by high-power laser directed energy deposition: Experimental and prediction

Y. M. Ren; X. Lin; P. F. Guo; H. O. Yang; H. Tan; J. Chen; J. Li; Y. Y. Zhang; W. D. Huang

doi:10.1016/j.ijfatigue.2019.05.035

Low cycle fatigue properties of Ti-6Al-4V alloy fabricated by high-power laser directed energy deposition: Experimental and prediction

Y. M. Ren, X. Lin, P. F. Guo, H. O. Yang, H. Tan, J. Chen, J. Li, Y. Y. Zhang, W. D. Huang

材料学院

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摘要

The low cycle fatigue (LCF) properties of Ti-6Al-4V parts fabricated by high-power laser directed energy deposition were investigated. The results show that the parts after solution treatment and aging exhibit superior LCF lives to those of other reported AM Ti-6Al-4V parts, as well as are comparable to those of the wrought counterparts at intermediate strain amplitudes (from 0.8% to 1.1%). Cyclic softening behaviors were found at various strain amplitudes (from 0.65% to 1.7%). In addition, a microstructure-based multistage fatigue model was used to predict their LCF lives and shows good agreement with the experimental data.

源语言	英语
页（从-至）	58-73
页数	16
期刊	International Journal of Fatigue
卷	127
DOI	https://doi.org/10.1016/j.ijfatigue.2019.05.035
出版状态	已出版 - 10月 2019

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10.1016/j.ijfatigue.2019.05.035

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title = "Low cycle fatigue properties of Ti-6Al-4V alloy fabricated by high-power laser directed energy deposition: Experimental and prediction",

abstract = "The low cycle fatigue (LCF) properties of Ti-6Al-4V parts fabricated by high-power laser directed energy deposition were investigated. The results show that the parts after solution treatment and aging exhibit superior LCF lives to those of other reported AM Ti-6Al-4V parts, as well as are comparable to those of the wrought counterparts at intermediate strain amplitudes (from 0.8% to 1.1%). Cyclic softening behaviors were found at various strain amplitudes (from 0.65% to 1.7%). In addition, a microstructure-based multistage fatigue model was used to predict their LCF lives and shows good agreement with the experimental data.",

keywords = "Additive manufacturing, Fatigue model, Laser directed energy deposition, Low cycle fatigue, Titanium alloy",

author = "Ren, {Y. M.} and X. Lin and Guo, {P. F.} and Yang, {H. O.} and H. Tan and J. Chen and J. Li and Zhang, {Y. Y.} and Huang, {W. D.}",

note = "Publisher Copyright: {\textcopyright} 2019",

year = "2019",

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doi = "10.1016/j.ijfatigue.2019.05.035",

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T1 - Low cycle fatigue properties of Ti-6Al-4V alloy fabricated by high-power laser directed energy deposition

T2 - Experimental and prediction

AU - Ren, Y. M.

AU - Lin, X.

AU - Guo, P. F.

AU - Yang, H. O.

AU - Tan, H.

AU - Chen, J.

AU - Li, J.

AU - Zhang, Y. Y.

AU - Huang, W. D.

PY - 2019/10

Y1 - 2019/10

N2 - The low cycle fatigue (LCF) properties of Ti-6Al-4V parts fabricated by high-power laser directed energy deposition were investigated. The results show that the parts after solution treatment and aging exhibit superior LCF lives to those of other reported AM Ti-6Al-4V parts, as well as are comparable to those of the wrought counterparts at intermediate strain amplitudes (from 0.8% to 1.1%). Cyclic softening behaviors were found at various strain amplitudes (from 0.65% to 1.7%). In addition, a microstructure-based multistage fatigue model was used to predict their LCF lives and shows good agreement with the experimental data.

AB - The low cycle fatigue (LCF) properties of Ti-6Al-4V parts fabricated by high-power laser directed energy deposition were investigated. The results show that the parts after solution treatment and aging exhibit superior LCF lives to those of other reported AM Ti-6Al-4V parts, as well as are comparable to those of the wrought counterparts at intermediate strain amplitudes (from 0.8% to 1.1%). Cyclic softening behaviors were found at various strain amplitudes (from 0.65% to 1.7%). In addition, a microstructure-based multistage fatigue model was used to predict their LCF lives and shows good agreement with the experimental data.

KW - Additive manufacturing

KW - Fatigue model

KW - Laser directed energy deposition

KW - Low cycle fatigue

KW - Titanium alloy

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M3 - 文章

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JO - International Journal of Fatigue

JF - International Journal of Fatigue

ER -

Low cycle fatigue properties of Ti-6Al-4V alloy fabricated by high-power laser directed energy deposition: Experimental and prediction

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