The Roles of Strain and Reheating Interval in Continuous Recrystallization during the Thermomechanical Processing by Warm Rolling of an Al-Mg Alloy
Abstract
Investigation into the influence of rolling strain and into the variation of properties and structure during reheating intervals between rolling passes in the thermomechanical processing of an Aluminum-9.89 Magnesium-0.09 Zirconium alloy (composition in weight percent) was conducted. Superplastic ductilities up to approximately 1120 percent were achieved by processing to a total strain of 2.5 utilizing a reheating interval of 30 minutes. Conversely, rolling to lesser values of strain with the same reheating interval or rolling to a strain of 2.5 and using a 5 minute reheating interval produced ductilities less than 400 percent. A strong correlation was demonstrated between results achieved and a qualitative model for continuous recrystallization during thermomechanical processing previously proposed. (JG)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1989
- Accession Number
- ADA223673
Entities
People
- Thomas E. Gorsuch
Organizations
- Naval Postgraduate School