Affordable Access

Publisher Website

Correlation between microstructure and tensile behavior in powder metallurgy ZK60 alloys

Authors
Journal
Materials Letters
0167-577X
Publisher
Elsevier
Publication Date
Volume
89
Identifiers
DOI: 10.1016/j.matlet.2012.07.029
Keywords
  • Microstructure
  • Tensile Behavior
  • Powder Technology
  • Zk60 Alloy

Abstract

Abstract The correlation between the microstructure and tensile behavior of powder metallurgy ZK60 alloys fabricated at different extrusion temperatures (T=200°C–350°C) was investigated. At T≥300°C, full dynamic recrystallization (DRX) occurred throughout the material, accompanied by the dynamic precipitation of fine MgZn2 particles. The tensile deformation behavior at room temperature depended on the grain size and the precipitate phase. Particle-dislocation interaction and associated strain hardening were observed in relatively coarse-grained Mg alloys (average grain size d>1μm), but were almost absent in the ultrafine-grained (UFG) materials mainly due to dynamic recovery. The powder metallurgy ZK60 alloys with d=0.4μm show a good balance of ultrahigh yield strength (402.1MPa) and high ductility (14.4%).

There are no comments yet on this publication. Be the first to share your thoughts.

Statistics

Seen <100 times
0 Comments

More articles like this

Solidification behavior, microstructure and tensil...

on Journal of Rare Earths Jan 01, 2011

Microstructure and Tensile Properties of ZK60 Allo...

on Journal of Material Science an... Jan 01, 2010

Tensile properties of extruded ZK60–RE alloys

on Materials Science and Engineer... May 25, 2003
More articles like this..