Publication:
Thermomechanical processing of an Al alloy 2519, and an assessment of its superplastic response

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Authors
Peet, Benjamin Braman.
Subjects
Advisors
McNelley, T.R.
Date of Issue
1995-06
Date
March 1995
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
The effects of different overaging temperatures and times prior to the rolling portion of a thermomechanical process (TMP) were examined to determine those combinations resulting in refined microstructures capable of supporting superplastic behavior. Specimens of processed Al 2519 were tension tested at elevated temperatures after varying TMP parameters. Enhanced ductility in comparison to unprocessed material was observed at all test temperatures in the range of 3OO-45O0C. Moderate superplastic ductilities (up to 300%) were encountered under some conditions. Backscattered electron imaging techniques coupled with quantitative microstructural analysis methods were used to examine both processed and deformed samples. The correlations among processing, microstructure and mechanical behavior are presented.
Type
Thesis
Description
Series/Report No
Department
Mechanical Engineering
Organization
Identifiers
NPS Report Number
Sponsors
Funder
NA
Format
53 p.
Citation
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
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