Paper Title:
Effects of Spinning on Microstructure and Mechanical Properties of A356 Alloy
  Abstract

The tube-shaped parts of A356 alloy were deformed from 0% to 83% by spinning process. The microstructure and mechanical properties of A356 alloy were discussed. The results showed that as the wall thickness reduction increases, the dendrite cells of cast alloy are lengthened gradually and the average Secondary Dendrite Arm Spacing (SDAS) is reduced from 37.2μm to 23μm and eutectic silicon particles are distributed orderly along the spinning direction. The coarse acicular β-Al5FeSi is broken into many sections, and its length is reduced from 37.5μm to 12.5μm in the cross-section. The tensile strength and elongation exhibit a strong dependence upon the variation in wall thickness, with a parabolic relationship. The tensile fractured surface of parts with deformation ratio above 35% exhibits many equiaxial dimples, with intergranular ductile fracture mode.

  Info
Periodical
Advanced Materials Research (Volumes 189-193)
Edited by
Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang
Pages
4014-4017
DOI
10.4028/www.scientific.net/AMR.189-193.4014
Citation
W. M. Zhao, X. F. Jia, Z. F. Wang, Z. G. Yin, G. Y. Xiong, "Effects of Spinning on Microstructure and Mechanical Properties of A356 Alloy", Advanced Materials Research, Vols. 189-193, pp. 4014-4017, 2011
Online since
February 2011
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$32.00
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