| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1499395 | Scripta Materialia | 2012 | 4 Pages |
Abstract
The alloy 50.3Ni–29.7Ti–20Hf (at.%) exhibits attractive high-temperature shape memory properties. To determine the effect of aging on the behavior of this alloy, isothermal constant strain rate compression testing was performed at temperatures above the austenite finish temperature. This revealed that the alloy strength and the temperature range for pseudoelasticity vs. austenite plasticity was strongly influenced by aging. Electron microscopy has revealed precipitates rich in hafnium with a novel ordered structure relative to the B2 austenite phase form during aging.
Keywords
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Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
D.R. Coughlin, P.J. Phillips, G.S. Bigelow, A. Garg, R.D. Noebe, M.J. Mills,