Microstructure and degradation performance of biodegradable Mg-Si-Sr implant alloys

Research output: Journal contributionsJournal articlesResearchpeer-review

Standard

Microstructure and degradation performance of biodegradable Mg-Si-Sr implant alloys. / Gil-Santos, Andrea; Marco, Iñigo; Moelans, Nele et al.
In: Materials Science and Engineering C, Vol. 71, 01.02.2017, p. 25-34.

Research output: Journal contributionsJournal articlesResearchpeer-review

Harvard

APA

Vancouver

Gil-Santos A, Marco I, Moelans N, Hort N, Van der Biest O. Microstructure and degradation performance of biodegradable Mg-Si-Sr implant alloys. Materials Science and Engineering C. 2017 Feb 1;71:25-34. doi: 10.1016/j.msec.2016.09.056

Bibtex

@article{9d1f3defb4454668bca39e9a6db1462a,
title = "Microstructure and degradation performance of biodegradable Mg-Si-Sr implant alloys",
abstract = "In this work the microstructure and degradation behavior of several as-cast alloy compositions belonging to the Mg rich corner of the Mg-Si-Sr system are presented and related. The intermetallic phases are identified and analyzed describing the microstructure evolution during solidification. It is intended in this work to obtain insight in the behavior of the ternary alloys in in vitro tests and to analyze the degradation behavior of the alloys under physiologically relevant conditions. The as-cast specimens have been exposed to immersion tests, both mass loss (ML) and potentiodynamic polarization (PDP). The degradation rate (DR) have been assessed and correlated to microstructure features, impurity levels and alloy composition. The initial reactions resulted to be more severe while the degradation stabilizes with time. A higher DR is related with a high content of the Mg17Sr2 phase and with the presence of coarse particles of the intermetallics Mg2Si, MgSiSr and MgSi2Sr. Specimens with a higher DR typically have higher levels of impurities and alloy contents.",
keywords = "Corrosion layer, Impurities, Intermetallics, Magnesium alloys, Microstructure, Physiological degradation, Engineering",
author = "Andrea Gil-Santos and I{\~n}igo Marco and Nele Moelans and Norbert Hort and {Van der Biest}, Omer",
year = "2017",
month = feb,
day = "1",
doi = "10.1016/j.msec.2016.09.056",
language = "English",
volume = "71",
pages = "25--34",
journal = "Materials Science and Engineering C",
issn = "0928-4931",
publisher = "Elsevier B.V.",

}

RIS

TY - JOUR

T1 - Microstructure and degradation performance of biodegradable Mg-Si-Sr implant alloys

AU - Gil-Santos, Andrea

AU - Marco, Iñigo

AU - Moelans, Nele

AU - Hort, Norbert

AU - Van der Biest, Omer

PY - 2017/2/1

Y1 - 2017/2/1

N2 - In this work the microstructure and degradation behavior of several as-cast alloy compositions belonging to the Mg rich corner of the Mg-Si-Sr system are presented and related. The intermetallic phases are identified and analyzed describing the microstructure evolution during solidification. It is intended in this work to obtain insight in the behavior of the ternary alloys in in vitro tests and to analyze the degradation behavior of the alloys under physiologically relevant conditions. The as-cast specimens have been exposed to immersion tests, both mass loss (ML) and potentiodynamic polarization (PDP). The degradation rate (DR) have been assessed and correlated to microstructure features, impurity levels and alloy composition. The initial reactions resulted to be more severe while the degradation stabilizes with time. A higher DR is related with a high content of the Mg17Sr2 phase and with the presence of coarse particles of the intermetallics Mg2Si, MgSiSr and MgSi2Sr. Specimens with a higher DR typically have higher levels of impurities and alloy contents.

AB - In this work the microstructure and degradation behavior of several as-cast alloy compositions belonging to the Mg rich corner of the Mg-Si-Sr system are presented and related. The intermetallic phases are identified and analyzed describing the microstructure evolution during solidification. It is intended in this work to obtain insight in the behavior of the ternary alloys in in vitro tests and to analyze the degradation behavior of the alloys under physiologically relevant conditions. The as-cast specimens have been exposed to immersion tests, both mass loss (ML) and potentiodynamic polarization (PDP). The degradation rate (DR) have been assessed and correlated to microstructure features, impurity levels and alloy composition. The initial reactions resulted to be more severe while the degradation stabilizes with time. A higher DR is related with a high content of the Mg17Sr2 phase and with the presence of coarse particles of the intermetallics Mg2Si, MgSiSr and MgSi2Sr. Specimens with a higher DR typically have higher levels of impurities and alloy contents.

KW - Corrosion layer

KW - Impurities

KW - Intermetallics

KW - Magnesium alloys

KW - Microstructure

KW - Physiological degradation

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=84992109339&partnerID=8YFLogxK

U2 - 10.1016/j.msec.2016.09.056

DO - 10.1016/j.msec.2016.09.056

M3 - Journal articles

C2 - 27987705

AN - SCOPUS:84992109339

VL - 71

SP - 25

EP - 34

JO - Materials Science and Engineering C

JF - Materials Science and Engineering C

SN - 0928-4931

ER -

Recently viewed

Publications

  1. Socio-economic Context of Forest Biodiversity Use along a Town–Forest Gradient in Cambodia
  2. Influence of zinc and silver additions on hot tearing susceptibility of Mg-14Gd-0.4Zr alloy
  3. The Relation of Children's Performances in Spatial Tasks at Two Different Scales of Space
  4. An observer for sensorless variable valve control in camless internal combustion engines
  5. Bedeutung der postoperativen Übungsbehandlung für das Outcome der distalen Radiusfraktur
  6. Modeling and simulation of the heterogenous material behavior in thermal-sprayed coatings
  7. Technical and economic assessment of food waste valorization through a biorefinery chain
  8. Experimental analysis of measurement process for a QCM using the pulse coincidence method
  9. Combining SMC and MTPA Using an EKF to estimate parameters and states of an interior PMSM
  10. Nitrogen losses from fertilizers applied to maize, wheat and rice in the North China Plain
  11. Simulation of SARS-CoV-2 pandemic in Germany with ordinary differential equations in MATLAB
  12. The Effects of Social Interaction and Social Norm Compliance in Pay-What-You-Want Situations
  13. Approaching bolt load retention behaviour of AS41 through compliance and creep deformation
  14. Quality of Firms' Exports and Distance to Destination Countries: First Evidence from Germany
  15. Ecological features facilitating spread of alien plants along Mediterranean mountain roads
  16. Robust Current Decoupling in a Permanent Magnet Motor Combining a Geometric Method and SMC
  17. Land-use change differentially affects endemic, forest andopen-land butterflies in Madagascar
  18. Optimal trajectory generation using MPC in robotino and its implementation with ROS system
  19. An optimal minimum phase approximating PD regulator for robust control of a throttle plate
  20. Homogenization methods for multi-phase elastic composites with non-elliptical reinforcements