Additive Manufacturing of Nickel Superalloys: Opportunities for Innovation and Challenges Related to Qualification

Additive Manufacturing of Nickel Superalloys: Opportunities for Innovation and Challenges Related... TOPICAL COLLECTION: SUPERALLOYS AND THEIR APPLICATIONS Additive Manufacturing of Nickel Superalloys: Opportunities for Innovation and Challenges Related to Qualification S.S. BABU, N. RAGHAVAN, J. RAPLEE, S.J. FOSTER, C. FREDERICK, M. HAINES, R. DINWIDDIE, M.K. KIRKA, A. PLOTKOWSKI, Y. LEE, and R.R. DEHOFF Innovative designs for turbines can be achieved by advances in nickel-based superalloys and manufacturing methods, including the adoption of additive manufacturing. In this regard, selective electron beam melting (SEBM) and selective laser melting (SLM) of nickel-based superalloys do provide distinct advantages. Furthermore, the direct energy deposition (DED) processes can be used for repair and reclamation of nickel alloy components. The current paper explores opportunities for innovation and qualification challenges with respect to deployment of AM as a disruptive manufacturing technology. In the first part of the paper, fundamental correlations of processing parameters to defect tendency and microstructure evolution will be explored using DED process. In the second part of the paper, opportunities for innovation in terms of site-specific control of microstructure during processing will be discussed. In the third part of the paper, challenges in qualification of AM parts for service will be discussed and potential methods to alleviate these issues through in situ process monitoring, and http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Metallurgical and Materials Transactions A Springer Journals

Additive Manufacturing of Nickel Superalloys: Opportunities for Innovation and Challenges Related to Qualification

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Publisher
Springer US
Copyright
Copyright © 2018 by The Minerals, Metals & Materials Society and ASM International
Subject
Materials Science; Metallic Materials; Characterization and Evaluation of Materials; Structural Materials; Surfaces and Interfaces, Thin Films; Nanotechnology
ISSN
1073-5623
eISSN
1543-1940
D.O.I.
10.1007/s11661-018-4702-4
Publisher site
See Article on Publisher Site

Abstract

TOPICAL COLLECTION: SUPERALLOYS AND THEIR APPLICATIONS Additive Manufacturing of Nickel Superalloys: Opportunities for Innovation and Challenges Related to Qualification S.S. BABU, N. RAGHAVAN, J. RAPLEE, S.J. FOSTER, C. FREDERICK, M. HAINES, R. DINWIDDIE, M.K. KIRKA, A. PLOTKOWSKI, Y. LEE, and R.R. DEHOFF Innovative designs for turbines can be achieved by advances in nickel-based superalloys and manufacturing methods, including the adoption of additive manufacturing. In this regard, selective electron beam melting (SEBM) and selective laser melting (SLM) of nickel-based superalloys do provide distinct advantages. Furthermore, the direct energy deposition (DED) processes can be used for repair and reclamation of nickel alloy components. The current paper explores opportunities for innovation and qualification challenges with respect to deployment of AM as a disruptive manufacturing technology. In the first part of the paper, fundamental correlations of processing parameters to defect tendency and microstructure evolution will be explored using DED process. In the second part of the paper, opportunities for innovation in terms of site-specific control of microstructure during processing will be discussed. In the third part of the paper, challenges in qualification of AM parts for service will be discussed and potential methods to alleviate these issues through in situ process monitoring, and

Journal

Metallurgical and Materials Transactions ASpringer Journals

Published: Jun 1, 2018

References

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