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Title: Feasibility Study of Making Metallic Hybrid Materials Using Additive Manufacturing

Abstract

In this paper, a metallic hybrid structure, consisting of an Inconel-718 matrix and a Co-Cr internal structure, was successfully manufactured using laser direct energy deposition process. Characterizations were performed using energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), neutron-computed tomography (nCT), and electron back-scatter diffraction (EBSD) to verify the interfaces between Co-rich and Ni-rich phases. nCT revealed the internal structures to be continuous without cracking or significant intermixing due to inter-diffusion of Co and Ni (i.e., dissolved boundaries between the two structures). Minor porosity was detected. EBSD confirmed a good bond at the granular level. No precipitate phases were detected with XRD. Finally, EDS revealed dilution/intermixing between the Co and Ni interfaces presumably due to melt-pool overlay between the matrix and the internal structures.

Authors:
 [1];  [1];  [2];  [3];  [3];  [1];  [4]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Electrical and Electronics Systems Research Division
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical and Engineering Materials Division
  4. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Materials Science and Engineering. Dept. of Mechanical, Aerospace and Biomedical Engineering; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Energy & Transportation Science Division
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 Science (SC), Basic Energy Sciences (BES); ORNL Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1462837
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science
Additional Journal Information:
Journal Volume: 49; Journal Issue: 10; Journal ID: ISSN 1073-5623
Publisher:
ASM International
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Cakmak, Ercan, Sridharan, Niyanth, Venkatakrishnan, Singanallur V., Bilheux, Hassina Z., Santodonato, Louis J., Shyam, Amit, and Babu, Sudarsanam S. Feasibility Study of Making Metallic Hybrid Materials Using Additive Manufacturing. United States: N. p., 2018. Web. doi:10.1007/s11661-018-4741-x.
Cakmak, Ercan, Sridharan, Niyanth, Venkatakrishnan, Singanallur V., Bilheux, Hassina Z., Santodonato, Louis J., Shyam, Amit, & Babu, Sudarsanam S. Feasibility Study of Making Metallic Hybrid Materials Using Additive Manufacturing. United States. doi:10.1007/s11661-018-4741-x.
Cakmak, Ercan, Sridharan, Niyanth, Venkatakrishnan, Singanallur V., Bilheux, Hassina Z., Santodonato, Louis J., Shyam, Amit, and Babu, Sudarsanam S. Wed . "Feasibility Study of Making Metallic Hybrid Materials Using Additive Manufacturing". United States. doi:10.1007/s11661-018-4741-x. https://www.osti.gov/servlets/purl/1462837.
@article{osti_1462837,
title = {Feasibility Study of Making Metallic Hybrid Materials Using Additive Manufacturing},
author = {Cakmak, Ercan and Sridharan, Niyanth and Venkatakrishnan, Singanallur V. and Bilheux, Hassina Z. and Santodonato, Louis J. and Shyam, Amit and Babu, Sudarsanam S.},
abstractNote = {In this paper, a metallic hybrid structure, consisting of an Inconel-718 matrix and a Co-Cr internal structure, was successfully manufactured using laser direct energy deposition process. Characterizations were performed using energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), neutron-computed tomography (nCT), and electron back-scatter diffraction (EBSD) to verify the interfaces between Co-rich and Ni-rich phases. nCT revealed the internal structures to be continuous without cracking or significant intermixing due to inter-diffusion of Co and Ni (i.e., dissolved boundaries between the two structures). Minor porosity was detected. EBSD confirmed a good bond at the granular level. No precipitate phases were detected with XRD. Finally, EDS revealed dilution/intermixing between the Co and Ni interfaces presumably due to melt-pool overlay between the matrix and the internal structures.},
doi = {10.1007/s11661-018-4741-x},
journal = {Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science},
number = 10,
volume = 49,
place = {United States},
year = {2018},
month = {7}
}

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    Works referencing / citing this record:

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