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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

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:
ORCiD logo [1];  [1];  [2];  [3];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division. Manufacturing Demonstration Facility
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Manufacturing Demonstration Facility. Electrical and Electronics Systems Research Division
  3. 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 = {Tue Jul 31 00:00:00 EDT 2018},
month = {Tue Jul 31 00:00:00 EDT 2018}
}

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Works referenced in this record:

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Works referencing / citing this record:

In Operando Monitoring by Analysis of Backscattered Electrons during Electron Beam Melting
journal, December 2019

  • Arnold, Christopher; Böhm, Jonas; Körner, Carolin
  • Advanced Engineering Materials, Vol. 22, Issue 9
  • DOI: 10.1002/adem.201901102

Powder Recycling Effects on the Tensile and Fatigue Behavior of Additively Manufactured Ti-6Al-4V Parts
journal, November 2018


Fatigue Performance of Additively Manufactured Ti-6Al-4V: Surface Condition vs. Internal Defects
journal, January 2020