Paper Title:
Effects of Extrusion Process on Microstructure of Aluminum Profiles with Different Wall Thickness Sections
  Abstract

The material undergoes the different deformation stage and the changing history of strain-rate and temperature affects the microstructure evolution during extrusion process. To understand the effect of extrusion process on microstructure evolution, the microstructures of aluminum profile with different wall thickness sections are compared and the variety of strain-rate and temperature are analyzed. The result show that the larger increasing gradient of strain-rate leads to the incomplete recrystallization process in thin wall section during the pocket die stage. The coarse grains are developed by second recrystallization because of the violent strain-rate changes, which is caused by the entrance of bearing-land. The lasting time of high strain-rate and temperature decided the growth of coarse grains, which is affected by bearing-land length.

  Info
Periodical
Advanced Materials Research (Volumes 314-316)
Chapter
Materials Processing Technology
Edited by
Jian Gao
Pages
778-782
DOI
10.4028/www.scientific.net/AMR.314-316.778
Citation
J. Z. Ma, D. H. Mao, J. B. Li, H. Z. Wang, "Effects of Extrusion Process on Microstructure of Aluminum Profiles with Different Wall Thickness Sections", Advanced Materials Research, Vols. 314-316, pp. 778-782, 2011
Online since
August 2011
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Price
$32.00
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