Correlations Between Powder Feedstock Quality, In Situ Porosity Detection, and Fatigue Behavior of Ti-6Al-4V Fabricated by Powder Bed Electron Beam Melting: A Step Towards Qualification
Abstract
Ti-6Al-4V is the most studied alloy via electron beam melting (EBM) with regards to microstructure and mechanical behavior, but there have been no attempts to correlate in situ porosity detection and fatigue behavior. This is required for widespread adoption of EBM because conventional evaluation is often time-consuming and expensive. This study presents the use of near-infrared imaging to detect and quantify porosity in Ti-6Al-4V builds fabricated from different powder feedstocks and its correlation to their fatigue response. Finally, we report that, for identical processing parameters, the variability in powder feedstock causes variations in porosity and scatter in the respective fatigue response.
- Authors:
-
[1];
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division. Manufacturing Demonstration Facility
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Manufacturing Demonstration Facility. Electrical and Electronics Systems Research Division
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Energy and Transportation Science Division; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Mechanical, Aerospace, and Biomedical Engineering
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Advanced Manufacturing Office; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
- OSTI Identifier:
- 1474677
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- JOM. Journal of the Minerals, Metals & Materials Society
- Additional Journal Information:
- Journal Volume: 70; Journal Issue: 9; Journal ID: ISSN 1047-4838
- Publisher:
- Springer
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 42 ENGINEERING
Citation Formats
Nandwana, Peeyush, Kirka, Michael M., Paquit, Vincent C., Yoder, Sean, and Dehoff, Ryan R. Correlations Between Powder Feedstock Quality, In Situ Porosity Detection, and Fatigue Behavior of Ti-6Al-4V Fabricated by Powder Bed Electron Beam Melting: A Step Towards Qualification. United States: N. p., 2018.
Web. doi:10.1007/s11837-018-3034-6.
Nandwana, Peeyush, Kirka, Michael M., Paquit, Vincent C., Yoder, Sean, & Dehoff, Ryan R. Correlations Between Powder Feedstock Quality, In Situ Porosity Detection, and Fatigue Behavior of Ti-6Al-4V Fabricated by Powder Bed Electron Beam Melting: A Step Towards Qualification. United States. https://doi.org/10.1007/s11837-018-3034-6
Nandwana, Peeyush, Kirka, Michael M., Paquit, Vincent C., Yoder, Sean, and Dehoff, Ryan R. Tue .
"Correlations Between Powder Feedstock Quality, In Situ Porosity Detection, and Fatigue Behavior of Ti-6Al-4V Fabricated by Powder Bed Electron Beam Melting: A Step Towards Qualification". United States. https://doi.org/10.1007/s11837-018-3034-6. https://www.osti.gov/servlets/purl/1474677.
@article{osti_1474677,
title = {Correlations Between Powder Feedstock Quality, In Situ Porosity Detection, and Fatigue Behavior of Ti-6Al-4V Fabricated by Powder Bed Electron Beam Melting: A Step Towards Qualification},
author = {Nandwana, Peeyush and Kirka, Michael M. and Paquit, Vincent C. and Yoder, Sean and Dehoff, Ryan R.},
abstractNote = {Ti-6Al-4V is the most studied alloy via electron beam melting (EBM) with regards to microstructure and mechanical behavior, but there have been no attempts to correlate in situ porosity detection and fatigue behavior. This is required for widespread adoption of EBM because conventional evaluation is often time-consuming and expensive. This study presents the use of near-infrared imaging to detect and quantify porosity in Ti-6Al-4V builds fabricated from different powder feedstocks and its correlation to their fatigue response. Finally, we report that, for identical processing parameters, the variability in powder feedstock causes variations in porosity and scatter in the respective fatigue response.},
doi = {10.1007/s11837-018-3034-6},
journal = {JOM. Journal of the Minerals, Metals & Materials Society},
number = 9,
volume = 70,
place = {United States},
year = {2018},
month = {7}
}
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Works referencing / citing this record:
In Operando Monitoring by Analysis of Backscattered Electrons during Electron Beam Melting
journal, December 2019
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- Advanced Engineering Materials, Vol. 22, Issue 9
Powder Recycling Effects on the Tensile and Fatigue Behavior of Additively Manufactured Ti-6Al-4V Parts
journal, November 2018
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Fatigue Performance of Additively Manufactured Ti-6Al-4V: Surface Condition vs. Internal Defects
journal, January 2020
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