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Title: Microstructures and mechanical properties of electron beam-rapid manufactured Ti-6Al-4V biomedical prototypes compared to wrought Ti-6Al-4V

Abstract

This study represents an exploratory characterization and comparison of electron-beam melted (EBM) or rapid manufacturing (RM) of Ti-6Al-4V components (from nominal 30 {mu}m diameter powder) with wrought products. Acicular {alpha} and associated {beta} microstructures observed by optical metallography and electron microscopy (SEM and TEM) are compared along with corresponding tensile test and hardness data; including the initial powder particles where the Vickers microindentation hardness averaged 5.0 GPa in comparison with the fully dense, EB manufactured product with an average microindentation hardness ranging from 3.6 to 3.9 GPa. This compared with wrought products where the Vickers microindentation hardness averaged 4.0 GPa. Values of UTS for the EBM samples averaged 1.18 GPa for elongations ranging from 16 to 25%. Biomaterials/biomedical applications of EBM prototypes in direct prosthesis or implant manufacturing from CT or MRI data are discussed in the context of this work, especially prospects for tailoring physical properties through EB control to achieve customized and optimized implant and prosthetic products direct from CT-scans.

Authors:
 [1];  [2];  [3]; ; ;  [2];  [4]; ; ; ; ;  [2]; ;  [5];  [6];  [4]
  1. Department of Metallurgical and Materials Engineering, University of Texas at El Paso, El Paso, TX 79968 (United States), E-mail: fekberg@utep.edu
  2. Department of Metallurgical and Materials Engineering, University of Texas at El Paso, El Paso, TX 79968 (United States)
  3. Department of Electrical and Computer Engineering and Keck Center for 3-D Innovation, University of Texas at El Paso, El Paso, TX 79968 (United States)
  4. Department of Mechanical Engineering and Keck Center for 3-D Innovation, University of Texas at El Paso, El Paso, TX 79968 (United States)
  5. Stratasys, Eden Prairie, MN 55344 (United States)
  6. Arcam AB, Moelndal (Sweden)
Publication Date:
OSTI Identifier:
21192594
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Characterization; Journal Volume: 60; Journal Issue: 2; Other Information: DOI: 10.1016/j.matchar.2008.07.006; PII: S1044-5803(08)00207-6; Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINIUM ALLOYS; CAT SCANNING; ELECTRON BEAMS; HARDNESS; MANUFACTURING; METALLOGRAPHY; MICROSTRUCTURE; NMR IMAGING; PHYSICAL PROPERTIES; PRESSURE RANGE GIGA PA; SCANNING ELECTRON MICROSCOPY; TRANSITION ELEMENT ALLOYS; TRANSMISSION ELECTRON MICROSCOPY

Citation Formats

Murr, L.E., Esquivel, E.V., Quinones, S.A., Gaytan, S.M., Lopez, M.I., Martinez, E.Y., Medina, F., Hernandez, D.H., Martinez, E., Martinez, J.L., Stafford, S.W., Brown, D.K., Hoppe, T., Meyers, W., Lindhe, U., and Wicker, R.B. Microstructures and mechanical properties of electron beam-rapid manufactured Ti-6Al-4V biomedical prototypes compared to wrought Ti-6Al-4V. United States: N. p., 2009. Web. doi:10.1016/j.matchar.2008.07.006.
Murr, L.E., Esquivel, E.V., Quinones, S.A., Gaytan, S.M., Lopez, M.I., Martinez, E.Y., Medina, F., Hernandez, D.H., Martinez, E., Martinez, J.L., Stafford, S.W., Brown, D.K., Hoppe, T., Meyers, W., Lindhe, U., & Wicker, R.B. Microstructures and mechanical properties of electron beam-rapid manufactured Ti-6Al-4V biomedical prototypes compared to wrought Ti-6Al-4V. United States. doi:10.1016/j.matchar.2008.07.006.
Murr, L.E., Esquivel, E.V., Quinones, S.A., Gaytan, S.M., Lopez, M.I., Martinez, E.Y., Medina, F., Hernandez, D.H., Martinez, E., Martinez, J.L., Stafford, S.W., Brown, D.K., Hoppe, T., Meyers, W., Lindhe, U., and Wicker, R.B. Sun . "Microstructures and mechanical properties of electron beam-rapid manufactured Ti-6Al-4V biomedical prototypes compared to wrought Ti-6Al-4V". United States. doi:10.1016/j.matchar.2008.07.006.
@article{osti_21192594,
title = {Microstructures and mechanical properties of electron beam-rapid manufactured Ti-6Al-4V biomedical prototypes compared to wrought Ti-6Al-4V},
author = {Murr, L.E. and Esquivel, E.V. and Quinones, S.A. and Gaytan, S.M. and Lopez, M.I. and Martinez, E.Y. and Medina, F. and Hernandez, D.H. and Martinez, E. and Martinez, J.L. and Stafford, S.W. and Brown, D.K. and Hoppe, T. and Meyers, W. and Lindhe, U. and Wicker, R.B.},
abstractNote = {This study represents an exploratory characterization and comparison of electron-beam melted (EBM) or rapid manufacturing (RM) of Ti-6Al-4V components (from nominal 30 {mu}m diameter powder) with wrought products. Acicular {alpha} and associated {beta} microstructures observed by optical metallography and electron microscopy (SEM and TEM) are compared along with corresponding tensile test and hardness data; including the initial powder particles where the Vickers microindentation hardness averaged 5.0 GPa in comparison with the fully dense, EB manufactured product with an average microindentation hardness ranging from 3.6 to 3.9 GPa. This compared with wrought products where the Vickers microindentation hardness averaged 4.0 GPa. Values of UTS for the EBM samples averaged 1.18 GPa for elongations ranging from 16 to 25%. Biomaterials/biomedical applications of EBM prototypes in direct prosthesis or implant manufacturing from CT or MRI data are discussed in the context of this work, especially prospects for tailoring physical properties through EB control to achieve customized and optimized implant and prosthetic products direct from CT-scans.},
doi = {10.1016/j.matchar.2008.07.006},
journal = {Materials Characterization},
number = 2,
volume = 60,
place = {United States},
year = {Sun Feb 15 00:00:00 EST 2009},
month = {Sun Feb 15 00:00:00 EST 2009}
}