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Graphene Oxide Reinforced Iron Matrix Composite With Enhanced Biodegradation Rate Prepared by Selective Laser Melting
Author(s) -
Zhao YingChao,
Tang Yue,
Zhao MingChun,
Liu Long,
Gao Chengde,
Shuai Cijun,
Zeng RongChang,
Atrens Andrej,
Lin Yongcheng
Publication year - 2019
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201900314
Subject(s) - materials science , graphene , selective laser melting , biodegradation , composite number , oxide , microstructure , composite material , grain size , metal , iron oxide , matrix (chemical analysis) , metallurgy , nanotechnology , organic chemistry , chemistry
Pure iron (Fe) is a promising biodegradable metal. However, a too slow biodegradation rate in physiological environments restricts its clinical application. This work produced a Fe/graphene oxide (GO) composite from pure Fe and GO powders, through selective laser melting (SLM). GO is expected to increase the biodegradation rate of Fe. The microstructure, hardness, and corrosion behavior are investigated. The results demonstrated that the GO is distributed relatively uniformly at grain boundaries and inside the matrix. The SLMed Fe/GO composite had finer grain size, higher hardness, and faster biodegradation rate compared to the SLMed pure Fe.