Approach to qualification using E-PBF in-situ process monitoring in Ti-6Al-4V
Abstract
Traditional design and qualification methodologies for parts manufactured by traditional methods are being applied to Additive Manufacturing (AM) without understanding the nuances of the machines. While mapping process variables and tracking build data is helpful, some variables such as build geometry, support structure, and part melt order have not been researched in depth. Changing these variables can result in significant variations in material properties and defect structure such that the process appears to be unreliable compared to traditional manufacturing. Hence, this research focuses on the need to understand the effects of overlooked variables such as melt order and nested geometry on the distribution of defects and bulk material properties in Ti-6Al-4 V alloy builds manufactured using the Arcam AB ® electron beam powder bed fusion process1. This work collected and analyzed process log data and near infrared (NIR) images for every layer to correlate trends in porosity formation and mechanical performance. The location of pores, while naturally stochastic, is greatly influenced by the cross-sectional area as detected by NIR images and correlates with the failure sites from uniaxial testing.
- Authors:
-
[1];
[2];
[2];
[2];
[2];
- Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Univ. of Maine, Orono, ME (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Advanced Manufacturing Office
- OSTI Identifier:
- 1546555
- Alternate Identifier(s):
- OSTI ID: 1642290
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Additive Manufacturing
- Additional Journal Information:
- Journal Volume: 28; Journal Issue: C; Journal ID: ISSN 2214-8604
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; 36 MATERIALS SCIENCE; Additive manufacturing; Electron beam powder bed fusion; Ti-6Al-4V; Qualification; Microstructure; In-situ monitoring
Citation Formats
Yoder, S., Nandwana, P., Paquit, V., Kirka, M., Scopel, A., Dehoff, R. R., and Babu, S. S. Approach to qualification using E-PBF in-situ process monitoring in Ti-6Al-4V. United States: N. p., 2019.
Web. doi:10.1016/j.addma.2019.03.021.
Yoder, S., Nandwana, P., Paquit, V., Kirka, M., Scopel, A., Dehoff, R. R., & Babu, S. S. Approach to qualification using E-PBF in-situ process monitoring in Ti-6Al-4V. United States. https://doi.org/10.1016/j.addma.2019.03.021
Yoder, S., Nandwana, P., Paquit, V., Kirka, M., Scopel, A., Dehoff, R. R., and Babu, S. S. Sat .
"Approach to qualification using E-PBF in-situ process monitoring in Ti-6Al-4V". United States. https://doi.org/10.1016/j.addma.2019.03.021. https://www.osti.gov/servlets/purl/1546555.
@article{osti_1546555,
title = {Approach to qualification using E-PBF in-situ process monitoring in Ti-6Al-4V},
author = {Yoder, S. and Nandwana, P. and Paquit, V. and Kirka, M. and Scopel, A. and Dehoff, R. R. and Babu, S. S.},
abstractNote = {Traditional design and qualification methodologies for parts manufactured by traditional methods are being applied to Additive Manufacturing (AM) without understanding the nuances of the machines. While mapping process variables and tracking build data is helpful, some variables such as build geometry, support structure, and part melt order have not been researched in depth. Changing these variables can result in significant variations in material properties and defect structure such that the process appears to be unreliable compared to traditional manufacturing. Hence, this research focuses on the need to understand the effects of overlooked variables such as melt order and nested geometry on the distribution of defects and bulk material properties in Ti-6Al-4 V alloy builds manufactured using the Arcam AB ® electron beam powder bed fusion process1. This work collected and analyzed process log data and near infrared (NIR) images for every layer to correlate trends in porosity formation and mechanical performance. The location of pores, while naturally stochastic, is greatly influenced by the cross-sectional area as detected by NIR images and correlates with the failure sites from uniaxial testing.},
doi = {10.1016/j.addma.2019.03.021},
journal = {Additive Manufacturing},
number = C,
volume = 28,
place = {United States},
year = {Sat Apr 20 00:00:00 EDT 2019},
month = {Sat Apr 20 00:00:00 EDT 2019}
}
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Works referenced in this record:
Additive Manufacturing of Ti-6Al-4V Aero Engine Parts: Qualification for Reliability
journal, January 2018
- Samuel, Mathews P.; Mishra, Aditya Kumar; Mishra, R. K.
- Journal of Failure Analysis and Prevention, Vol. 18, Issue 1
Metal Additive Manufacturing: A Review
journal, April 2014
- Frazier, William E.
- Journal of Materials Engineering and Performance, Vol. 23, Issue 6
Metal Additive Manufacturing: A Review of Mechanical Properties
journal, July 2016
- Lewandowski, John J.; Seifi, Mohsen
- Annual Review of Materials Research, Vol. 46, Issue 1
The Origin of Microstructural Diversity, Texture, and Mechanical Properties in Electron Beam Melted Ti-6Al-4V
journal, August 2010
- Al-Bermani, S. S.; Blackmore, M. L.; Zhang, W.
- Metallurgical and Materials Transactions A, Vol. 41, Issue 13
Numerical modeling of heat-transfer and the influence of process parameters on tailoring the grain morphology of IN718 in electron beam additive manufacturing
journal, June 2016
- Raghavan, Narendran; Dehoff, Ryan; Pannala, Sreekanth
- Acta Materialia, Vol. 112
Influence of defects on mechanical properties of Ti–6Al–4V components produced by selective laser melting and electron beam melting
journal, December 2015
- Gong, Haijun; Rafi, Khalid; Gu, Hengfeng
- Materials & Design, Vol. 86
An Investigation of Key Design for Additive Manufacturing Constraints in Multimaterial Three-Dimensional Printing
journal, October 2015
- Meisel, Nicholas; Williams, Christopher
- Journal of Mechanical Design, Vol. 137, Issue 11
Microstructures and mechanical properties of electron beam-rapid manufactured Ti–6Al–4V biomedical prototypes compared to wrought Ti–6Al–4V
journal, February 2009
- Murr, L. E.; Esquivel, E. V.; Quinones, S. A.
- Materials Characterization, Vol. 60, Issue 2
Effects of processing on microstructure and mechanical properties of a titanium alloy (Ti–6Al–4V) fabricated using electron beam melting (EBM), part 1: Distance from build plate and part size
journal, June 2013
- Hrabe, Nikolas; Quinn, Timothy
- Materials Science and Engineering: A, Vol. 573
Nucleation and growth of chimney pores during electron-beam additive manufacturing
journal, December 2016
- Cordero, Zachary C.; Dinwiddie, Ralph B.; Immel, David
- Journal of Materials Science, Vol. 52, Issue 6
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
journal, July 2018
- Nandwana, Peeyush; Kirka, Michael M.; Paquit, Vincent C.
- JOM, Vol. 70, Issue 9
Falcon: Visual analysis of large, irregularly sampled, and multivariate time series data in additive manufacturing
journal, April 2017
- Steed, Chad A.; Halsey, William; Dehoff, Ryan
- Computers & Graphics, Vol. 63
Effects of processing on microstructure and mechanical properties of a titanium alloy (Ti–6Al–4V) fabricated using electron beam melting (EBM), Part 2: Energy input, orientation, and location
journal, June 2013
- Hrabe, Nikolas; Quinn, Timothy
- Materials Science and Engineering: A, Vol. 573
Improvement of fatigue resistance and ductility of TiAl6V4 processed by selective laser melting
journal, June 2015
- Kasperovich, Galina; Hausmann, Joachim
- Journal of Materials Processing Technology, Vol. 220
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