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Inelastic strain recovery of a dynamically deformed unidirectional Ag-Cu eutectic alloy

Kingstedt, O. T. and Eftink, B. P. and Robertson, I. M. and Lambros, J. (2016) Inelastic strain recovery of a dynamically deformed unidirectional Ag-Cu eutectic alloy. Acta Materialia, 113 . pp. 293-300. ISSN 1359-6454. http://resolver.caltech.edu/CaltechAUTHORS:20160531-101153309

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Abstract

In this work we report experimentally observed inelastic recovery within a bulk directionally-cast Ag-Cu eutectic system tailored to possess a high density of incoherent twin interfaces. Incremental high strain-rate compression experiments were performed along the [101] crystallographic direction. Initial loading to a compressive strain of 0.10 was followed by inelastic strain recovery of 0.02–0.035. Further incremental loading saw decreasing inelastic strain recovery with each additional loading increment. Once a total compressive stain of 0.22 was reached there was cessation of inelastic strain recovery. Quasi-static compression and thermal experiments were conducted to elucidate the necessary loading conditions for inelastic recovery to occur in the Ag-Cu material and to provide insight of possible active recovery mechanisms.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/j.actamat.2016.04.043DOIArticle
http://www.sciencedirect.com/science/article/pii/S1359645416303111PublisherArticle
Additional Information:© 2016 Acta Materialia Inc. Published by Elsevier Ltd. Received 19 February 2016; Received in revised form 13 April 2016; Accepted 19 April 2016. This work was supported by a grant from the National Nuclear Security Administration of the Department of Energy (DE-FG52-09NA29463). Scanning Electron Microscopy imaging was carried out in part in the Frederick Seitz Materials Research Laboratory Central Facilities, University of Illinois. Casting of the material was done with the assistance of Dr. Doug Safarik at Los Alamos National Laboratory. The authors would like to acknowledge fruitful discussions with N. Mara of Los Alamos National Laboratory.
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)DE-FG52-09NA29463
Subject Keywords:Strain recovery; Silver-copper; Twin boundary; Ultra-fine-grain material; Eutectic
Record Number:CaltechAUTHORS:20160531-101153309
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20160531-101153309
Official Citation:O.T. Kingstedt, B.P. Eftink, I.M. Robertson, J. Lambros, Inelastic strain recovery of a dynamically deformed unidirectional AgCu eutectic alloy, Acta Materialia, Volume 113, July 2016, Pages 293-300, ISSN 1359-6454, http://dx.doi.org/10.1016/j.actamat.2016.04.043. (http://www.sciencedirect.com/science/article/pii/S1359645416303111)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:67491
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:31 May 2016 23:02
Last Modified:31 May 2016 23:02

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