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The strengthening mechanism of deformed and aged Al Cu Mg alloy

QUAN LIWEI1,* , FANG DARAN1, WANG YINGLING1

Affiliation

  1. School of Materials and Metallurgy, Northeastern University, Shenyang 110819, China

Abstract

The microstructure and mechanical properties of deformed and subs equently aged Al Cu Mg alloy w ere investigated by employing transmission electron microscopy and hardness test. It was found that when the deformed alloy with 5 strain was aged to peak temper, the strengthening mechanism was ascribed to the small disperse d S phases, which was different from the GPB zone as strengthening particle in conventional ageing. Besides, the main strengthening mechanism in the initial ageing stage was work hardening effect due to quantities of dislocation..

Keywords

Strengthening mechanism, S phase, Work hardening effect, GPB zones, Aluminum alloy.

Citation

QUAN LIWEI, FANG DARAN, WANG YINGLING, The strengthening mechanism of deformed and aged Al Cu Mg alloy, Optoelectronics and Advanced Materials - Rapid Communications, 8, 5-6, May-June 2014, pp.540-544 (2014).

Submitted at: Dec. 30, 2013

Accepted at: May 15, 2014