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

Abstract

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]
+ Show Author Affiliations
  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:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1224751
Grant/Contract Number:  
AC05-00OR22725
Resource 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
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

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., 2015. Web. doi:10.1007/s11663-015-0477-9.
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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. https://doi.org/10.1007/s11663-015-0477-9
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Nandwana, Peeyush, Peter, William H., Lowe, Larry E., Dehoff, Ryan R., Medina, Francisco, Babu, Sudarsanam Suresh, and Kirka, Michael M. Tue . "Recyclability study on Inconel 718 and Ti-6Al-4V powders for use in electron beam melting". United States. https://doi.org/10.1007/s11663-015-0477-9. https://www.osti.gov/servlets/purl/1224751.
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@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 = {Tue Oct 20 00:00:00 EDT 2015},
month = {Tue Oct 20 00:00:00 EDT 2015}
}
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Journal Article:
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Publisher's Version of Record
https://doi.org/10.1007/s11663-015-0477-9
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Works referenced in this record:

Effect of build geometry on the β-grain structure and texture in additive manufacture of Ti6Al4V by selective electron beam melting
journal, October 2013

Metal Fabrication by Additive Manufacturing Using Laser and Electron Beam Melting Technologies
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Surface plasmon enhanced blue–green photoluminescence from carbon-rich amorphous silicon carbide films
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The Origin of Microstructural Diversity, Texture, and Mechanical Properties in Electron Beam Melted Ti-6Al-4V
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  • Metallurgical Transactions B, Vol. 15, Issue 3
  • DOI: 10.1007/BF02657376
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    Works referencing / citing this record:

    Dynamic simulation of powder packing structure for powder bed additive manufacturing
    journal, February 2018

    • Lee, Y. S.; Nandwana, P.; Zhang, W.
    • The International Journal of Advanced Manufacturing Technology, Vol. 96, Issue 1-4
    • DOI: 10.1007/s00170-018-1697-3

    Mechanical characterisation of stainless steel parts produced by direct metal laser sintering with virgin and reused powder
    journal, November 2019

    • Contaldi, V.; Del Re, F.; Palumbo, B.
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    • DOI: 10.1007/s00170-019-04416-4

    Effect of Powder Recycling in Electron Beam Melting on the Surface Chemistry of Alloy 718 Powder
    journal, July 2019

    • Gruber, Hans; Henriksson, Mikael; Hryha, Eduard
    • Metallurgical and Materials Transactions A, Vol. 50, Issue 9
    • DOI: 10.1007/s11661-019-05333-7

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

    Real-time monitoring of laser powder bed fusion process using high-speed X-ray imaging and diffraction
    journal, June 2017

    Ultrafast X-ray imaging of laser–metal additive manufacturing processes
    text, January 2018

    Additive Manufacturing of Alloy 718 via Electron Beam Melting: Effect of Post-Treatment on the Microstructure and the Mechanical Properties
    journal, December 2018

    • Balachandramurthi, Arun; Moverare, Johan; Mahade, Satyapal
    • Materials, Vol. 12, Issue 1
    • DOI: 10.3390/ma12010068
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