Journal of Materials Science

, Volume 42, Issue 8, pp 2630–2632 | Cite as

Serrated flow in cast ZE43 alloy

  • C. Y. WangEmail author
  • X. N. Zhang
  • N. Z. Cao
  • Z. Liu

Plastic deformation of solid solutions is occasionally accompanied by plastic instabilities, i.e. serrated flow or the Partevin-Le Chatelier (PLC) effect. The PLC effect has been observed and investigated in various kinds of aluminum alloys [1, 2, 3, 4, 5]. For most aluminum alloys, this effect is observed at ambient temperature. The dynamic interaction between mobile dislocations and diffusing solute atoms, known as dynamic strain aging (DSA), is commonly accepted to account for the observed phenomena [6, 7, 8, 9, 10, 11].

Compared to the extensive investigations on serrated flow of aluminum alloys, only a few papers have been concerned with the serrated flow in magnesium alloys. Couling [12] briefly reported the anomalous yielding effect in a Mg–0.5%Th alloy at testing temperatures from 373 K to 663 K. Chaturvedi et al. [13, 14] reported serrated flow in an Mg–10 wt.%Ag solid solution at temperatures between 326 K and 397 K. Zhu et al. [15] recently observed serrated flow in a...


Magnesium Alloy Critical Strain Solute Atom Mobile Dislocation Dynamic Strain Aging 
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Copyright information

© Springer Science+Business Media, LLC 2006

Authors and Affiliations

  1. 1.Department of Materials EngineeringBohai Shipbuilding Vocational CollegeHuludaoP.R. China
  2. 2.Department of Materials Science and EngineeringShenyang University of TechnologyShenyangP.R. China

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