Paper Title:
Effect of the Rolling Process on Microstructures and Mechanical Properties of the Extruded LA91 Alloy Sheet
  Abstract

The microstructure evolution of the extruded Mg-9Li-1Al (LA91) during rolling was investigated taking account of effects of different routes including hot rolling, and cross rolling. The rolling parameters were suggested by thermal compression testing. As a result, the suggested rolling parameters were 250°C and 1.0s-1. Transverse hot rolling would bring a finer microstructure to the as-rolled LA91 sheet. With the enhancement of the rolling reduction during unidirectional hot rolling the α-Mg phase became granular or short rod-like from long strip-like. Transverse + longitudinal hot rolling would improve the microstructure and was a better cross rolling route by which the strength and the elongation of the cross rolled LA91 sheet reached 243MPa and 20% respectively. The over-aging existed in the cross rolled LA91 sheets.

  Info
Periodical
Edited by
Yafang Han, Fusheng Pan, Jianmao Tang, Chungen Zhou
Pages
90-95
DOI
10.4028/www.scientific.net/MSF.686.90
Citation
B. Jiang, Q. S. Yang, L. Gao, F. S. Pan, "Effect of the Rolling Process on Microstructures and Mechanical Properties of the Extruded LA91 Alloy Sheet", Materials Science Forum, Vol. 686, pp. 90-95, 2011
Online since
June 2011
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$32.00
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