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Title: Recyclability study on Inconel 718 and Ti-6Al-4V powders for use in electron beam melting

In this study, powder bed based additive manufacturing technologies offer a big advantage in terms of reusability of the powders over multiple cycles that result in cost savings. However, currently there are no standards to determine the factors that govern the powder reuse times. This work presents the results from a recyclability study conducted on Inconel 718 and Ti-6Al-4V powders. It has been found that the Inconel 718 powders are chemically stable over a large number of cycles and their reuse time is limited by physical characteristics of powders such as flowability. Ti-6Al-4V, on the other hand, finds its reuse time governed by the oxygen pick up that occurs during and in between build cycles. The detailed results have been presented.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [2] ;  [3] ;  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Arcam AB, Molndal (Sweden)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
Publication Date:
Grant/Contract Number:
AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
Metallurgical and Materials Transactions. B, Process Metallurgy and Materials Processing Science
Additional Journal Information:
Journal Volume: 33; Journal Issue: 4; Journal ID: ISSN 1073-5615
Publisher:
ASM International
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE
OSTI Identifier:
1224751

Nandwana, Peeyush, Peter, William H., Lowe, Larry E., Dehoff, Ryan R., Medina, Francisco, Babu, Sudarsanam Suresh, and Kirka, Michael M.. Recyclability study on Inconel 718 and Ti-6Al-4V powders for use in electron beam melting. United States: N. p., Web. doi:10.1007/s11663-015-0477-9.
Nandwana, Peeyush, Peter, William H., Lowe, Larry E., Dehoff, Ryan R., Medina, Francisco, Babu, Sudarsanam Suresh, & Kirka, Michael M.. Recyclability study on Inconel 718 and Ti-6Al-4V powders for use in electron beam melting. United States. doi:10.1007/s11663-015-0477-9.
Nandwana, Peeyush, Peter, William H., Lowe, Larry E., Dehoff, Ryan R., Medina, Francisco, Babu, Sudarsanam Suresh, and Kirka, Michael M.. 2015. "Recyclability study on Inconel 718 and Ti-6Al-4V powders for use in electron beam melting". United States. doi:10.1007/s11663-015-0477-9. https://www.osti.gov/servlets/purl/1224751.
@article{osti_1224751,
title = {Recyclability study on Inconel 718 and Ti-6Al-4V powders for use in electron beam melting},
author = {Nandwana, Peeyush and Peter, William H. and Lowe, Larry E. and Dehoff, Ryan R. and Medina, Francisco and Babu, Sudarsanam Suresh and Kirka, Michael M.},
abstractNote = {In this study, powder bed based additive manufacturing technologies offer a big advantage in terms of reusability of the powders over multiple cycles that result in cost savings. However, currently there are no standards to determine the factors that govern the powder reuse times. This work presents the results from a recyclability study conducted on Inconel 718 and Ti-6Al-4V powders. It has been found that the Inconel 718 powders are chemically stable over a large number of cycles and their reuse time is limited by physical characteristics of powders such as flowability. Ti-6Al-4V, on the other hand, finds its reuse time governed by the oxygen pick up that occurs during and in between build cycles. The detailed results have been presented.},
doi = {10.1007/s11663-015-0477-9},
journal = {Metallurgical and Materials Transactions. B, Process Metallurgy and Materials Processing Science},
number = 4,
volume = 33,
place = {United States},
year = {2015},
month = {10}
}