Feasibility of in situ controlled heat treatment (ISHT) of Inconel 718 during electron beam melting additive manufacturing

Sames, William J.; Unocic, Kinga A.; Helmreich, Grant W.; Kirka, Michael M.; Medina, Frank; Dehoff, Ryan R.; Babu, Sudarsanam Suresh

doi:10.1016/j.addma.2016.09.001

Title: Feasibility of in situ controlled heat treatment (ISHT) of Inconel 718 during electron beam melting additive manufacturing

Journal Article · Fri Oct 07 00:00:00 EDT 2016 · Additive Manufacturing

DOI:https://doi.org/10.1016/j.addma.2016.09.001· OSTI ID:1344984

Sames, William J. ^[1]; Unocic, Kinga A. ^[2]; Helmreich, Grant W. ^[3]; Kirka, Michael M. ^[4]; Medina, Frank ^[5]; Dehoff, Ryan R. ^[4]; Babu, Sudarsanam Suresh ^[6]

Texas A & M Univ., College Station, TX (United States); Oak Ridge National Lab. (ORNL), Knoxville, TN (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Univ. of Tennessee, Knoxville, TN (United States)
Oak Ridge National Lab. (ORNL), Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Arcam AB (Sweden)
Oak Ridge National Lab. (ORNL), Knoxville, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)

A novel technique was developed to control the microstructure evolution in Alloy 718 processed using Electron Beam Melting (EBM). In situ solution treatment and aging of Alloy 718 was performed by heating the top surface of the build after build completion scanning an electron beam to act as a planar heat source during the cool down process. Results demonstrate that the measured hardness (478 ± 7 HV) of the material processed using in situ heat treatment similar to that of peak-aged Inconel 718. Large solidification grains and cracks formed, which are identified as the likely mechanism leading to failure of tensile tests of the in situ heat treatment material under loading. Despite poor tensile performance, the technique proposed was shown to successively age Alloy 718 (increase precipitate size and hardness) without removing the sample from the process chamber, which can reduce the number of process steps in producing a part. Lastly, tighter controls on processing temperature during layer melting to lower process temperature and selective heating during in situ heat treatment to reduce over-sintering are proposed as methods for improving the process.

View Accepted Manuscript (DOE)

View Accepted Manuscript (Publisher)

Cite

Export

Save

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). High Temperature Materials Lab. (HTML); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Manufacturing Demonstration Facility (MDF)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE)

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1344984

Alternate ID(s):: OSTI ID: 1411453

Journal Information:: Additive Manufacturing, Vol. 13, Issue C; ISSN 2214-8604

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

Citation Metrics:

Cited by: 43 works

Citation information provided by
Web of Science

References (25)

Welding: Solidification and microstructure David, S. A.; Babu, S. S.; Vitek, J. M. JOM, Vol. 55, Issue 6 https://doi.org/10.1007/s11837-003-0134-7	journal	June 2003
A study of the microstructural evolution during selective laser melting of Ti–6Al–4V Thijs, Lore; Verhaeghe, Frederik; Craeghs, Tom Acta Materialia, Vol. 58, Issue 9 https://doi.org/10.1016/j.actamat.2010.02.004	journal	May 2010
Microstructure and mechanical properties of nickel based superalloy IN718 produced by rapid prototyping with electron beam melting (EBM) Strondl, A.; Palm, M.; Gnauk, J. Materials Science and Technology, Vol. 27, Issue 5 https://doi.org/10.1179/026708309X12468927349451	journal	May 2011
Strong morphological and crystallographic texture and resulting yield strength anisotropy in selective laser melted tantalum Thijs, Lore; Montero Sistiaga, Maria Luz; Wauthle, Ruben Acta Materialia, Vol. 61, Issue 12 https://doi.org/10.1016/j.actamat.2013.04.036	journal	July 2013
Aging of the Inconel 718 alloy between 500 and 750 °C Slama, C.; Servant, C.; Cizeron, G. Journal of Materials Research, Vol. 12, Issue 9 https://doi.org/10.1557/JMR.1997.0306	journal	September 1997
Additive manufacturing of nickel-based superalloy Inconel 718 by selective electron beam melting: Processing window and microstructure Helmer, Harald Ernst; Körner, Carolin; Singer, Robert Friedrich Journal of Materials Research, Vol. 29, Issue 17 https://doi.org/10.1557/jmr.2014.192	journal	August 2014
Direct Laser Fabrication of INCONEL-718: Effects on Distortion and Microstructure Parimi, L.; Attallah, M.; Gebelin, J. Superalloys 2012 (Twelfth International Symposium) https://doi.org/10.7449/2012/Superalloys_2012_511_519	conference	January 2012
The Origin of Microstructural Diversity, Texture, and Mechanical Properties in Electron Beam Melted Ti-6Al-4V Al-Bermani, S. S.; Blackmore, M. L.; Zhang, W. Metallurgical and Materials Transactions A, Vol. 41, Issue 13 https://doi.org/10.1007/s11661-010-0397-x	journal	August 2010
Comparison of Residual Stresses in Inconel 718 Simple Parts Made by Electron Beam Melting and Direct Laser Metal Sintering Sochalski-Kolbus, L. M.; Payzant, E. A.; Cornwell, P. A. Metallurgical and Materials Transactions A, Vol. 46, Issue 3 https://doi.org/10.1007/s11661-014-2722-2	journal	January 2015
Effect of heat treatment on the structure and properties of extruded P/M alloy 718 Merrick, H. F. Metallurgical Transactions A, Vol. 7, Issue 4 https://doi.org/10.1007/BF02643966	journal	April 1976
Delta phase precipitation in Inconel 718 Azadian, Saied; Wei, Liu-Ying; Warren, Richard Materials Characterization, Vol. 53, Issue 1 https://doi.org/10.1016/j.matchar.2004.07.004	journal	September 2004
Overlapping of γ′ precipitate variants in Inconel 718 Sundararaman, M.; Mukhopadhyay, P. Materials Characterization, Vol. 31, Issue 4 https://doi.org/10.1016/1044-5803(93)90062-Z	journal	December 1993
Quantification of precipitates and their effects on the response of nickel-base superalloy to shot peening Chandrasekar, R.; Lo, C. C. H.; Frishman, A. M. REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION: Volume 31, AIP Conference Proceedings https://doi.org/10.1063/1.4716385	conference	January 2012
Microstructural Architecture, Microstructures, and Mechanical Properties for a Nickel-Base Superalloy Fabricated by Electron Beam Melting Murr, L. E.; Martinez, E.; Gaytan, S. M. Metallurgical and Materials Transactions A, Vol. 42, Issue 11 https://doi.org/10.1007/s11661-011-0748-2	journal	June 2011
Thermal effects on microstructural heterogeneity of Inconel 718 materials fabricated by electron beam melting Sames, William J.; Unocic, Kinga A.; Dehoff, Ryan R. Journal of Materials Research, Vol. 29, Issue 17 https://doi.org/10.1557/jmr.2014.140	journal	July 2014
Microstructures and mechanical behavior of Inconel 718 fabricated by selective laser melting Amato, K. N.; Gaytan, S. M.; Murr, L. E. Acta Materialia, Vol. 60, Issue 5 https://doi.org/10.1016/j.actamat.2011.12.032	journal	March 2012
Vacuum heat treatment of iron parts produced by selective laser melting: Microstructure, residual stress and tensile behavior Song, Bo; Dong, Shujuan; Liu, Qi Materials & Design (1980-2015), Vol. 54 https://doi.org/10.1016/j.matdes.2013.08.085	journal	February 2014
Computer simulation of phase transformation and plastic deformation in IN718 superalloy: Microstructural evolution during precipitation Zhou, N.; Lv, D. C.; Zhang, H. L. Acta Materialia, Vol. 65 https://doi.org/10.1016/j.actamat.2013.10.069	journal	February 2014
Thermal Stability of Deformation Twins in γ'-Strengthened Alloy 718 Sundararaman, M.; Mukhopadhyay, P. Defect and Diffusion Forum, Vol. 213-215 https://doi.org/10.4028/www.scientific.net/DDF.213-215.61	journal	March 2003
Novel precipitate–microstructural architecture developed in the fabrication of solid copper components by additive manufacturing using electron beam melting Ramirez, D. A.; Murr, L. E.; Martinez, E. Acta Materialia, Vol. 59, Issue 10 https://doi.org/10.1016/j.actamat.2011.03.033	journal	June 2011
Crystallographic texture engineering through novel melt strategies via electron beam melting: Inconel 718 Dehoff, R. R.; Kirka, M. M.; List, F. A. Materials Science and Technology, Vol. 31, Issue 8 https://doi.org/10.1179/1743284714Y.0000000697	journal	October 2014
Rationalization of Microstructure Heterogeneity in INCONEL 718 Builds Made by the Direct Laser Additive Manufacturing Process Tian, Yuan; McAllister, Donald; Colijn, Hendrik Metallurgical and Materials Transactions A, Vol. 45, Issue 10 https://doi.org/10.1007/s11661-014-2370-6	journal	June 2014
Properties of Inconel 625 mesh structures grown by electron beam additive manufacturing List, F. A.; Dehoff, R. R.; Lowe, L. E. Materials Science and Engineering: A, Vol. 615 https://doi.org/10.1016/j.msea.2014.07.051	journal	October 2014
Coherency strengthening in Ni base alloys hardened by DO22 γ′ precipitates Oblak, J. M.; Paulonis, D. F.; Duvall, D. S. Metallurgical and Materials Transactions B, Vol. 5, Issue 1 https://doi.org/10.1007/BF02642938	journal	January 1974
The precipitation of Ni3Nb phases in a Ni−Fe−Cr−Nb alloy Kirman, I.; Warrington, D. H. Metallurgical and Materials Transactions B, Vol. 1, Issue 10 https://doi.org/10.1007/BF03037800	journal	October 1970

Cited By (2)

The Hardness of Additively Manufactured Alloys Zuback, J. S.; DebRoy, T. Materials, Vol. 11, Issue 11 https://doi.org/10.3390/ma11112070	journal	October 2018
Damage Tolerance Evaluation of E-PBF-Manufactured Inconel 718 Strut Geometries by Advanced Characterization Techniques Kotzem, Daniel; Arold, Tizian; Niendorf, Thomas Materials, Vol. 13, Issue 1 https://doi.org/10.3390/ma13010247	journal	January 2020

Similar Records

Mechanical behavior of post-processed Inconel 718 manufactured through the electron beam melting process

Journal Article · Fri Oct 21 00:00:00 EDT 2016 · Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing · OSTI ID:1344984

Kirka, Michael M.; Medina, Frank; Dehoff, Ryan R.; +1 more

Microstructure Development in Electron Beam-Melted Inconel 718 and Associated Tensile Properties

Journal Article · Fri Feb 12 00:00:00 EST 2016 · JOM. Journal of the Minerals, Metals & Materials Society · OSTI ID:1344984

Kirka, M. M.; Unocic, K. A.; Raghavan, N.; +3 more

Effect of anisotropy and texture on the low cycle fatigue behavior of Inconel 718 processed via electron beam melting

Journal Article · Mon Sep 11 00:00:00 EDT 2017 · International Journal of Fatigue · OSTI ID:1344984

Kirka, Michael M.; Greeley, Duncan A.; Hawkins, Charles S.; +1 more

Related Subjects

36 MATERIALS SCIENCE
additive manufacturing
electron beam melting
post-processing
Ni-base superalloy

Title: Feasibility of in situ controlled heat treatment (ISHT) of Inconel 718 during electron beam melting additive manufacturing

Citation Formats

References (25)

Cited By (2)

Similar Records

Related Subjects