elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Residual Strains in an Additively Processed Ni-based Superalloy Transpiration-Cooled Aerodynamic Leading Edge Structure using Neutron Diffraction

Fouliard, Quentin and Mayi-Rivas, Jose and Swaby, Oneilia and Bartsch, Marion and Bunn, Jeffrey R. and Kapat, Jayanta and Raghavan, Seetha (2023) Residual Strains in an Additively Processed Ni-based Superalloy Transpiration-Cooled Aerodynamic Leading Edge Structure using Neutron Diffraction. In: AIAA SciTech 2023 Forum, AIAA 2023-0180. AIAA Scitech 2023 Forum, 2023-01-23 - 2023-01-27, National Harbor, MD, USA & Online. doi: 10.2514/6.2023-0180.

Full text not available from this repository.

Abstract

Selective Laser Melting (SLM) is a well-known additive manufacturing method based on a layer-by-layer building process that is capable of fabricating gas turbine Ni-based superalloy parts with complex and integrated cooling geometries that are typically not achievable using conventional casting methods. However, the impact of residual stress concentration on SLM component life is a concern. In this work, residual strains present at room temperature in an SLM Inconel 718 generic aerodynamic leading edge segment with transpiration cooling were investigated using neutron diffraction at Oak Ridge National Laboratory. This study reveals that areas of the part where complex cooling holes were printed exhibit residual tensile strains that can be detrimental to its integrity. The study paves the way for future studies of the design of cooling hole geometries and manufacturing parameters that achieve improved cooling while minimizing stress concentration effects.

Item URL in elib:https://elib.dlr.de/194512/
Document Type:Conference or Workshop Item (Speech)
Title:Residual Strains in an Additively Processed Ni-based Superalloy Transpiration-Cooled Aerodynamic Leading Edge Structure using Neutron Diffraction
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Fouliard, Quentinuniversity of central florida, orlando, fl, usaUNSPECIFIEDUNSPECIFIED
Mayi-Rivas, Joseuniversity of central florida, orlando, fl, usaUNSPECIFIEDUNSPECIFIED
Swaby, Oneiliauniversity of central florida, orlando, fl, usaUNSPECIFIEDUNSPECIFIED
Bartsch, MarionUNSPECIFIEDhttps://orcid.org/0000-0002-3952-2928UNSPECIFIED
Bunn, Jeffrey R.university of central florida, orlando, fl, usaUNSPECIFIEDUNSPECIFIED
Kapat, Jayantauniversity of central florida, orlando, fl, usaUNSPECIFIEDUNSPECIFIED
Raghavan, Seethauniversity of central florida, orlando, fl, usaUNSPECIFIEDUNSPECIFIED
Date:January 2023
Journal or Publication Title:AIAA SciTech 2023 Forum
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI:10.2514/6.2023-0180
Page Range:AIAA 2023-0180
Status:Published
Keywords:Transpiration Cooling, Residual Strain, Leading Edge, Diffraction, Superalloys, Selective Laser Melting, Gas Turbine Engines, Inconel 718, Stress Concentration, High Pressure Turbine
Event Title:AIAA Scitech 2023 Forum
Event Location:National Harbor, MD, USA & Online
Event Type:international Conference
Event Start Date:23 January 2023
Event End Date:27 January 2023
Organizer:AIAA - American Institute of Aeronautics and Astronautics
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Clean Propulsion
DLR - Research area:Aeronautics
DLR - Program:L CP - Clean Propulsion
DLR - Research theme (Project):L - Advanced Materials and New Manufacturing Technologies
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Experimental and Numerical Methods
Deposited By: Bartsch, Dr.-Ing. Marion
Deposited On:08 May 2023 08:09
Last Modified:24 Apr 2024 20:55

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Website and database design: Copyright © German Aerospace Center (DLR). All rights reserved.