Fatigue strength improvement of selective laser melted Ti6Al4V using ultrasonic surface mechanical attrition

Xingchen Yan; Shuo Yin; Chaoyue Chen; Richard Jenkins; Rocco Lupoi; Rodolphe Bolot; Wenyou Ma; Min Kuang; Hanlin Liao; Jian Lu; Min Liu

doi:10.1080/21663831.2019.1609110

Author(s)

Xingchen Yan
Shuo Yin
Chaoyue Chen
Richard Jenkins
Rocco Lupoi
Rodolphe Bolot
Wenyou Ma
Min Kuang
Hanlin Liao
Min Liu

Related Research Unit(s)

Detail(s)

Original language	English
Pages (from-to)	327-333
Journal / Publication	Materials Research Letters
Volume	7
Issue number	8
Online published	23 Apr 2019
Publication status	Published - 2019

Link(s)

DOI	DOI https://doi.org/10.1080/21663831.2019.1609110 Final Published version
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Attachment(s)	Documents 33903203.pdf Final Published version, 2.98 MB, PDF Publisher's Copyright Statement This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-85086841083&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(4707edd4-3cfc-4a6f-9db5-2470043308e3).html

Abstract

Ultrasonic surface mechanical attrition treatment (SMAT) was employed to modify the surface microstructural layer of SLM Ti6Al4V ELI biomedical material to improve the fatigue performance. The SMAT method can introduce a nanostructured layer in the SLM sample surface by imposing high-strain-rate plastic deformation. The nanostructured layer improves the mechanical strength of the SMAT-affected zone and induces compressive residual stress parallel with the surface which suppress the initiation of cracks. As a result, the specimen after SMAT exhibits significantly higher fatigue strength than the non-treated sample in both low- and high-cycling regime.

Research Area(s)

Selective laser melting (SLM), additive manufacturing, nanocrystalline, fatigue resistance, TEM characterisation, TI-6AL-4V, TRANSFORMATION, PERFORMANCE, BEHAVIOR, COPPER

SDG 9 - Industry, Innovation, and Infrastructure

Citation Format(s)

[ RIS ] [ BibTeX ]

Fatigue strength improvement of selective laser melted Ti6Al4V using ultrasonic surface mechanical attrition. / Yan, Xingchen; Yin, Shuo; Chen, Chaoyue et al.
In: Materials Research Letters, Vol. 7, No. 8, 2019, p. 327-333.

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

Yan, X, Yin, S, Chen, C, Jenkins, R, Lupoi, R, Bolot, R, Ma, W, Kuang, M, Liao, H, Lu, J & Liu, M 2019, 'Fatigue strength improvement of selective laser melted Ti6Al4V using ultrasonic surface mechanical attrition', Materials Research Letters, vol. 7, no. 8, pp. 327-333. https://doi.org/10.1080/21663831.2019.1609110

Yan, X., Yin, S., Chen, C., Jenkins, R., Lupoi, R., Bolot, R., Ma, W., Kuang, M., Liao, H., Lu, J., & Liu, M. (2019). Fatigue strength improvement of selective laser melted Ti6Al4V using ultrasonic surface mechanical attrition. Materials Research Letters, 7(8), 327-333. https://doi.org/10.1080/21663831.2019.1609110

Yan X, Yin S, Chen C, Jenkins R, Lupoi R, Bolot R et al. Fatigue strength improvement of selective laser melted Ti6Al4V using ultrasonic surface mechanical attrition. Materials Research Letters. 2019;7(8):327-333. Epub 2019 Apr 23. doi: 10.1080/21663831.2019.1609110

Yan, Xingchen ; Yin, Shuo ; Chen, Chaoyue et al. / Fatigue strength improvement of selective laser melted Ti6Al4V using ultrasonic surface mechanical attrition. In: Materials Research Letters. 2019 ; Vol. 7, No. 8. pp. 327-333.

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