Analysis of the transition in deformation mechanisms in superplastic 5083 aluminum alloys by orientation imaging microscopy
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Authors
Harrell, James William
Subjects
Advisors
McNelley, Terry R.
Date of Issue
2001-09
Date
Publisher
Monterey, California. Naval Postgraduate School
Language
Abstract
m alloys used in automotive, aerospace and military applications. Superplasticity requires fine grains with high-angle boundaries and resistance to failure by cavitation. OIM permits grain-specific orientation determination and quantitative assessment of the grain-to-grain disorientation distribution as well as grain size measurement in materials. The current work offers significant new insights into the development and response of superplastic microstructures; in particular, OIM data may be employed to delineate the transition from slip to grain boundary sliding in superplastic 5083 materials.
Type
Thesis
Description
Series/Report No
Department
Mechanical Engineering
Organization
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NPS Report Number
Sponsors
Funder
Format
x, 83 p. : ill. (some col.) ;
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.