Mechanical Behavior of Three-Dimensional Braided Nickel-Based Superalloys Synthesized via Pack Cementation

Authors

Nicolas Lippitz, Institute for Materials
Dinc Erdeniz, Marquette UniversityFollow
Keith W. Sharp, TexTech Industries, Inc.
David C. Dunand, Northwestern University

Document Type

Article

Language

eng

Publication Date

3-2018

Publisher

Springer

Source Publication

Metallurgical and Materials Transactions A

Source ISSN

2199-384X

Abstract

Braided tubes of Ni-based superalloys are fabricated via three-dimensional (3-D) braiding of ductile Ni-20Cr (wt pct) wires followed by post-textile gas-phase alloying with Al and Ti to create, after homogenization and aging, γ/γ′ strengthened lightweight, porous structures. Tensile tests reveal an increase in strength by 100 MPa compared to as-braided Ni-20Cr (wt pct). An interrupted tensile test, combined with X-ray tomographic scans between each step, sheds light on the failure behavior of the braided superalloy tubes.

Comments

Accepted version. Metallurgical and Materials Transactions A, Vol. 49 (March 2018): 817-821. DOI. © 2018 Springer. Used with permission.

Recommended Citation

Lippitz, Nicolas; Erdeniz, Dinc; Sharp, Keith W.; and Dunand, David C., "Mechanical Behavior of Three-Dimensional Braided Nickel-Based Superalloys Synthesized via Pack Cementation" (2018). Mechanical Engineering Faculty Research and Publications. 251.
https://epublications.marquette.edu/mechengin_fac/251