Oxidation Behavior of Ni-based Alloys Fabricated by Additive Manufacturing

Sebastien Dryepondt; Mike M. Kirka; Frederick A. List

Oxidation Behavior of Ni-based Alloys Fabricated by Additive Manufacturing

Sebastien Dryepondt, Mike M. Kirka, Frederick A. List

Research output: Contribution to journal › Conference article › peer-review

3 Scopus citations

Abstract

Additive manufacturing (AM) allows for the fabrication of complex near net shape components, leading to new design opportunities and significant savings, for example by decreasing tooling and materials cost or by accelerating prototype development. New Ni-based alloy heat exchangers with thin-walled areas exposed to hot gases will, however, suffer from corrosion degradation, and the high temperature oxidation performance of AM alloys needs to be addressed. Alloy N06002 (Ni-22Cr-18Fe-9Mo) fabricated by electron beam melting (EBM) and selective laser melting (SLM) along with EBM-fabricated N07247 and modified N07247 were cyclic oxidation tested at 950ºC in air and humid air for durations ranging from 100 h to 5000 h. Increased spallation rates were observed initially for the AM N06002 alloys in comparison with wrought N06002 alloy because of the AM alloy specific microstructures. After ~2000 h, the situation was reversed with significant spallation observed for the wrought HX alloy only. Low mass gains were observed for the EBM N07247 alloys at 950ºC, but thick oxide scales were observed locally due to the presence of oxidized cracks. Massive oxidation of these cracks led to fast oxidation rates at 1100ºC.

Original language	English
Article number	13558
Journal	NACE - International Corrosion Conference Series
Volume	2019-March
State	Published - 2019
Event	Corrosion Conference and Expo 2019 - Nashville, United States Duration: Mar 24 2019 → Mar 28 2019

Funding

This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).

Keywords

Additive manufacturing
Cyclic oxidation
Electron beam melting
Ni-based superalloy
Selective laser melting

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

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title = "Oxidation Behavior of Ni-based Alloys Fabricated by Additive Manufacturing",

abstract = "Additive manufacturing (AM) allows for the fabrication of complex near net shape components, leading to new design opportunities and significant savings, for example by decreasing tooling and materials cost or by accelerating prototype development. New Ni-based alloy heat exchangers with thin-walled areas exposed to hot gases will, however, suffer from corrosion degradation, and the high temperature oxidation performance of AM alloys needs to be addressed. Alloy N06002 (Ni-22Cr-18Fe-9Mo) fabricated by electron beam melting (EBM) and selective laser melting (SLM) along with EBM-fabricated N07247 and modified N07247 were cyclic oxidation tested at 950ºC in air and humid air for durations ranging from 100 h to 5000 h. Increased spallation rates were observed initially for the AM N06002 alloys in comparison with wrought N06002 alloy because of the AM alloy specific microstructures. After ~2000 h, the situation was reversed with significant spallation observed for the wrought HX alloy only. Low mass gains were observed for the EBM N07247 alloys at 950ºC, but thick oxide scales were observed locally due to the presence of oxidized cracks. Massive oxidation of these cracks led to fast oxidation rates at 1100ºC.",

keywords = "Additive manufacturing, Cyclic oxidation, Electron beam melting, Ni-based superalloy, Selective laser melting",

author = "Sebastien Dryepondt and Kirka, {Mike M.} and List, {Frederick A.}",

note = "Publisher Copyright: {\textcopyright} 2019 by NACE International.; Corrosion Conference and Expo 2019 ; Conference date: 24-03-2019 Through 28-03-2019",

year = "2019",

language = "English",

volume = "2019-March",

journal = "NACE - International Corrosion Conference Series",

issn = "0361-4409",

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TY - JOUR

T1 - Oxidation Behavior of Ni-based Alloys Fabricated by Additive Manufacturing

AU - Dryepondt, Sebastien

AU - Kirka, Mike M.

AU - List, Frederick A.

PY - 2019

Y1 - 2019

N2 - Additive manufacturing (AM) allows for the fabrication of complex near net shape components, leading to new design opportunities and significant savings, for example by decreasing tooling and materials cost or by accelerating prototype development. New Ni-based alloy heat exchangers with thin-walled areas exposed to hot gases will, however, suffer from corrosion degradation, and the high temperature oxidation performance of AM alloys needs to be addressed. Alloy N06002 (Ni-22Cr-18Fe-9Mo) fabricated by electron beam melting (EBM) and selective laser melting (SLM) along with EBM-fabricated N07247 and modified N07247 were cyclic oxidation tested at 950ºC in air and humid air for durations ranging from 100 h to 5000 h. Increased spallation rates were observed initially for the AM N06002 alloys in comparison with wrought N06002 alloy because of the AM alloy specific microstructures. After ~2000 h, the situation was reversed with significant spallation observed for the wrought HX alloy only. Low mass gains were observed for the EBM N07247 alloys at 950ºC, but thick oxide scales were observed locally due to the presence of oxidized cracks. Massive oxidation of these cracks led to fast oxidation rates at 1100ºC.

AB - Additive manufacturing (AM) allows for the fabrication of complex near net shape components, leading to new design opportunities and significant savings, for example by decreasing tooling and materials cost or by accelerating prototype development. New Ni-based alloy heat exchangers with thin-walled areas exposed to hot gases will, however, suffer from corrosion degradation, and the high temperature oxidation performance of AM alloys needs to be addressed. Alloy N06002 (Ni-22Cr-18Fe-9Mo) fabricated by electron beam melting (EBM) and selective laser melting (SLM) along with EBM-fabricated N07247 and modified N07247 were cyclic oxidation tested at 950ºC in air and humid air for durations ranging from 100 h to 5000 h. Increased spallation rates were observed initially for the AM N06002 alloys in comparison with wrought N06002 alloy because of the AM alloy specific microstructures. After ~2000 h, the situation was reversed with significant spallation observed for the wrought HX alloy only. Low mass gains were observed for the EBM N07247 alloys at 950ºC, but thick oxide scales were observed locally due to the presence of oxidized cracks. Massive oxidation of these cracks led to fast oxidation rates at 1100ºC.

KW - Additive manufacturing

KW - Cyclic oxidation

KW - Electron beam melting

KW - Ni-based superalloy

KW - Selective laser melting

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M3 - Conference article

AN - SCOPUS:85070056935

SN - 0361-4409

VL - 2019-March

JO - NACE - International Corrosion Conference Series

JF - NACE - International Corrosion Conference Series

M1 - 13558

T2 - Corrosion Conference and Expo 2019

Y2 - 24 March 2019 through 28 March 2019

ER -

Oxidation Behavior of Ni-based Alloys Fabricated by Additive Manufacturing

Abstract

Funding

Keywords

UN SDGs

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