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The roles of Zr and Mn in processing and superplasticity of Al-Mg alloysProcessing studies have been conducted on two alloys, of nominal compositions Al-10Mg-0.1Zr or Al-10Mg-0.5Mn, in order to clarify the role of the dispersoid forming Zr or Mn additions. Mechanical property data reveal that the Mn-containing alloy has a lower maximum elongation but exhibits superplastic response over a broader range of temperature. Microstructural investigations and texture analyses were utilized to assess the effect of the presence of Al8Mg5 precipitates in combination with either Al3Zr or Al6Mn dispersoid particles during isothermal rolling at 300 C and subsequent tensile deformation at temperatures from 200-425 C.
Document ID
19910064290
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Mcnelley, Terry R.
(U.S. Naval Postgraduate School Monterey, CA, United States)
Hales, S. J.
(NASA Langley Research Center; Analytical Services and Materials, Inc. Hampton, VA, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1990
Subject Category
Metallic Materials
Accession Number
91A48913
Distribution Limits
Public
Copyright
Other

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