Corrosion fatigue behavior of additively manufactured biodegradable porous iron

Yageng Li; K. Lietaert; Wei Li; X.Y. Zhang; M. A. Leeflang; Jie Zhou; A. A. Zadpoor

doi:10.1016/j.corsci.2019.05.003

Corrosion fatigue behavior of additively manufactured biodegradable porous iron

Yageng Li, K. Lietaert, Wei Li, X.Y. Zhang, M. A. Leeflang, Jie Zhou, A. A. Zadpoor

Biomaterials & Tissue Biomechanics

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52 Citations (Scopus)

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Abstract

The corrosion fatigue behavior of additively manufactured topologically ordered porous iron based on diamond unit cells was studied for the first time to understand its response to cyclic loading in a simulated physiological environment. The material exhibited high fatigue resistance with fatigue strengths being 70% and 65% of yield stress in air and revised simulated body fluid, respectively, mainly due to its slow degradation and excellent ductility. However, cyclic loading significantly increased biodegradation rate, especially at higher stress levels. The observed extraordinary fatigue strength, slow biodegradation and high ductility underline the importance of porous iron as a promising bone-substituting material.

Original language	English
Pages (from-to)	106-116
Journal	Corrosion Science
Volume	156
DOIs	https://doi.org/10.1016/j.corsci.2019.05.003
Publication status	Published - 2019

Bibliographical note

Accepted Author Manuscript

Keywords

Additive manufacturing
Biodegradation
Corrosion fatigue
Iron scaffold
Selective laser melting

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10.1016/j.corsci.2019.05.003

1-s2.0-S0010938X19302409-mainAccepted author manuscript, 824 KBLicence: CC BY-NC-ND

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title = "Corrosion fatigue behavior of additively manufactured biodegradable porous iron",

abstract = "The corrosion fatigue behavior of additively manufactured topologically ordered porous iron based on diamond unit cells was studied for the first time to understand its response to cyclic loading in a simulated physiological environment. The material exhibited high fatigue resistance with fatigue strengths being 70% and 65% of yield stress in air and revised simulated body fluid, respectively, mainly due to its slow degradation and excellent ductility. However, cyclic loading significantly increased biodegradation rate, especially at higher stress levels. The observed extraordinary fatigue strength, slow biodegradation and high ductility underline the importance of porous iron as a promising bone-substituting material.",

keywords = "Additive manufacturing, Biodegradation, Corrosion fatigue, Iron scaffold, Selective laser melting",

author = "Yageng Li and K. Lietaert and Wei Li and X.Y. Zhang and Leeflang, {M. A.} and Jie Zhou and Zadpoor, {A. A.}",

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T1 - Corrosion fatigue behavior of additively manufactured biodegradable porous iron

AU - Li, Yageng

AU - Lietaert, K.

AU - Li, Wei

AU - Zhang, X.Y.

AU - Leeflang, M. A.

AU - Zhou, Jie

AU - Zadpoor, A. A.

N1 - Accepted Author Manuscript

PY - 2019

Y1 - 2019

N2 - The corrosion fatigue behavior of additively manufactured topologically ordered porous iron based on diamond unit cells was studied for the first time to understand its response to cyclic loading in a simulated physiological environment. The material exhibited high fatigue resistance with fatigue strengths being 70% and 65% of yield stress in air and revised simulated body fluid, respectively, mainly due to its slow degradation and excellent ductility. However, cyclic loading significantly increased biodegradation rate, especially at higher stress levels. The observed extraordinary fatigue strength, slow biodegradation and high ductility underline the importance of porous iron as a promising bone-substituting material.

AB - The corrosion fatigue behavior of additively manufactured topologically ordered porous iron based on diamond unit cells was studied for the first time to understand its response to cyclic loading in a simulated physiological environment. The material exhibited high fatigue resistance with fatigue strengths being 70% and 65% of yield stress in air and revised simulated body fluid, respectively, mainly due to its slow degradation and excellent ductility. However, cyclic loading significantly increased biodegradation rate, especially at higher stress levels. The observed extraordinary fatigue strength, slow biodegradation and high ductility underline the importance of porous iron as a promising bone-substituting material.

KW - Additive manufacturing

KW - Biodegradation

KW - Corrosion fatigue

KW - Iron scaffold

KW - Selective laser melting

UR - http://www.scopus.com/inward/record.url?scp=85065989361&partnerID=8YFLogxK

U2 - 10.1016/j.corsci.2019.05.003

DO - 10.1016/j.corsci.2019.05.003

M3 - Article

SN - 0010-938X

VL - 156

SP - 106

EP - 116

JO - Corrosion Science

JF - Corrosion Science

ER -

Corrosion fatigue behavior of additively manufactured biodegradable porous iron

Abstract

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Keywords

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