Compression-compression fatigue of selective electron beam melted cellular titanium (Ti-6Al-4V)

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autor(en): Hrabe NW, Heinl P, Flinn B, Körner C, Bordia RK
Zeitschrift: Journal of Biomedical Materials Research Part B-Applied Biomaterials
Jahr der Veröffentlichung: 2011
Heftnummer: 2
Seitenbereich: 313-320
ISSN: 1552-4973
Sprache: Englisch


Abstract


Regular 3D periodic porous Ti-6Al-4V structures intended to reduce the effects of stress shielding in load-bearing bone replacement implants (e.g., hip stems) were fabricated over a range of relative densities (0.17-0.40) and pore sizes (∼500-1500 μm) using selective electron beam melting (EBM). Compression-compression fatigue testing (15 Hz, R = 0.1) resulted in normalized fatigue strengths at 10 cycles ranging from 0.15 to 0.25, which is lower than the expected value of 0.4 for solid material of the same acicular α microstructure. The three possible reasons for this reduced fatigue lifetime are stress concentrations from closed porosity observed within struts, stress concentrations from observed strut surface features (sintered particles and texture lines), and microstructure (either acicular α or martensite) with less than optimal high-cycle fatigue resistance. Copyright © 2011 Wiley Periodicals, Inc.



FAU-Autoren / FAU-Herausgeber

Heinl, Peter
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)
Körner, Carolin Prof. Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)


Autor(en) der externen Einrichtung(en)
University of Washington


Zitierweisen

APA:
Hrabe, N.W., Heinl, P., Flinn, B., Körner, C., & Bordia, R.K. (2011). Compression-compression fatigue of selective electron beam melted cellular titanium (Ti-6Al-4V). Journal of Biomedical Materials Research Part B-Applied Biomaterials, 2, 313-320. https://dx.doi.org/10.1002/jbm.b.31901

MLA:
Hrabe, Nikolas W., et al. "Compression-compression fatigue of selective electron beam melted cellular titanium (Ti-6Al-4V)." Journal of Biomedical Materials Research Part B-Applied Biomaterials 2 (2011): 313-320.

BibTeX: 

Zuletzt aktualisiert 2018-12-12 um 20:50