Document Type
Article
Publication Date
2-15-1995
Publication Title
Materials Science and Engineering A
Abstract
The mechanical behavior of dual-phase NiAl(Cr) microstructures, consisting of elongated primary NiAl grains aligned with an intergranular NiAl-Cr eutectic phase, produced by extrusion of a cast NiAl(Cr) alloy, has been examined. Chromium addition to create a dual phase NiAl-based aligned microstructure leads to large increases in the yield strength but no significant toughness improvement. This is achieved primarily by solid solution hardening and precipitation hardening. The constitutional hardening rate resulting from deviations from stoichiometry in the nickel-rich NiAl was estimated to be about 66 MPa per atomic per cent of nickel.
Repository Citation
Tiwari, R.; Tewari, Surendra N.; Asthana, R.; and Garg, A., "Development of NiAl-Based Intermetallic Alloys: Effect of Chromium Addition" (1995). Chemical & Biomedical Engineering Faculty Publications. 56.
https://engagedscholarship.csuohio.edu/encbe_facpub/56
Original Citation
Tiwari, R., Tewari, S., Asthana, R., , & Garg, A. (1995). Development of NiAl-based intermetallic alloys: Effect of chromium addition. Materials Science and Engineering: A, 192-193, 356-363.
Volume
192 - 193
Issue
Part 1
DOI
10.1016/0921-5093(94)03218-1
Version
Postprint
Publisher's Statement
NOTICE: this is the author’s version of a work that was accepted for publication in Materials Science and Engineering A. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Materials Science and Engineering A, 192 -193, Part 1, (February 15, 1995) DOI 10.1016/0921-5093(94)03218-1
Comments
This research was partially supported by a grant from the NASA Lewis Research Center (Grant NCC-3-287)