ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The fine-fibrous nonrecrystallized structure determines substantial tensile property anisotropyof hot rolled 1424 alloy sheets. In the present work the possibility of producing a fully recrystallizedstructure in cold rolled sheets was investigated. To improve a technological plasticity acold rolling was performed after preliminary annealing of hot rolled sheets. The technological plasticitywas studied by means of determination a critical deformation degree at plane strain compressionat room temperature. The phase composition of hot rolled and annealed sheets was investigatedusing TEM and X-ray analysis.The uniform fine-grained and fully recrystallized structure in sheets was obtained after rolling withpreliminary annealing at 350-380°C and final solid solution treatment. After the indicated aboveannealing the maximum volume fraction of the equilibrium S1-phase precipitates was observed inthe alloy. After cooling in air from the annealing temperature it was found a very small quantity ofδ′-phase and after slow cooling with the furnace this phase was practically absent. The fully recrystallizedstructure in sheets provides a substantial decrease of the tensile property anisotropy in threed irections
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/13/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.519-521.371.pdf
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