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Effect of Aging Treatment on Dynamic Behavior of Mg-Gd-Y Alloy
-
Lin Wang
,
Qiao-Yun Qin
Veröffentlicht/Copyright:
20. April 2012
Abstract
Magnesium alloy is very attractive in many industrial applications due to its low density. The structure-property relationships of the magnesium alloy under quasi-static loading have been extensively investigated. However, the dynamic behavior, particularly the mechanism of high-rate plastic deformation, of the magnesium alloy requires more in-depth investigations. In this paper, the effect of aging treatment on the quasi-static and dynamic properties of a typical rare earth Mg-Gd-Y magnesium alloy is investigated. In particular, the plastic deformation mechanism under dynamic compression loading is discussed. Split Hopkinson Pressure Bar (SHPB) was used to carry out dynamic compression tests with controllable plastic deformation by using stopper rings. The experimental results demonstrate that both static and dynamic properties of the Mg-Gd-Y alloy vary under various aging treatment conditions (under-aged, peak-aged and over-aged conditions), due to two different kinds of second phases: remnant micro size phase from solid solution treatment and nano precipitation from aging treatment. The results of microstructure characterization and statistic analysis of the metallographic phase are presented. The area fraction of the twinned grains increases due to aging treatment and dynamic loading. The main plastic deformation mechanism of the rare earth Mg-Gd-Y magnesium alloy is possibly dislocation slip, rather than twinning for the conventional AZ31 magnesium alloy under high strain rate loading.
Received: 2011-10-16
Accepted: 2011-10-26
Published Online: 2012-04-20
Published in Print: 2012-04-01
©2012 by Walter de Gruyter Berlin Boston
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Artikel in diesem Heft
- Masthead
- Effect of Aging Treatment on Dynamic Behavior of Mg-Gd-Y Alloy
- Effect of Aging Treatment on Dynamic Behavior of Mg-Gd-Y Alloy
- On the Energy of Dynamic Fractures
- On the Energy of Dynamic Fractures
- Analysis of Thermoviscoplastic Effects on Dynamic Necking of Pure Copper Bars during Impact Tension
- Analysis of Thermoviscoplastic Effects on Dynamic Necking of Pure Copper Bars during Impact Tension
- Mechanism of High-velocity Projectile Penetration into Concrete
- Mechanism of High-velocity Projectile Penetration into Concrete
- A Spherical Cavity Expansion Penetration Model for Concrete Based on Hoek–Brown Strength Criterion
- A Spherical Cavity Expansion Penetration Model for Concrete Based on Hoek–Brown Strength Criterion
- Fabrication and Mechanical Properties of a Micro/Nanoscale Hybrid Composite
- Fabrication and Mechanical Properties of a Micro/Nanoscale Hybrid Composite
- Strain Rate Effects on the Interaction between an Eccentric Matrix Crack and a Circular Inclusion in Composites under Dynamic Loadings
- Multiscale Analysis of Particle Size-dependent Steady Compaction Waves in Granular Energetic Materials
- Multiscale Analysis of Particle Size-dependent Steady Compaction Waves in Granular Energetic Materials
- Numerical Simulation of Liquid-Fueled Detonations by an Eulerian–Lagrangian Model
- Numerical Simulation of Liquid-Fueled Detonations by an Eulerian–Lagrangian Model
- Effects of HMX Particle Size on the Shock Initiation of PBXC03 Explosive
- Effects of HMX Particle Size on the Shock Initiation of PBXC03 Explosive
- Investigation into the Spall Strength of Cast Iron
- Investigation into the Spall Strength of Cast Iron
- Numerical Analysis of Shockwave Propagation in Urban Underpass
- Numerical Analysis of Shockwave Propagation in Urban Underpass
- Experimental Study on Dynamic Mechanical Properties of Amphibolites, Sericite-quartz Schist and Sandstone under Impact Loadings
- Experimental Study on Dynamic Mechanical Properties of Amphibolites, Sericite-quartz Schist and Sandstone under Impact Loadings
- Frontmatter
- Effect of Aging Treatment on Dynamic Behavior of Mg-Gd-Y Alloy
- On the Energy of Dynamic Fractures
- Analysis of Thermoviscoplastic Effects on Dynamic Necking of Pure Copper Bars during Impact Tension
- Mechanism of High-velocity Projectile Penetration into Concrete
- A Spherical Cavity Expansion Penetration Model for Concrete Based on Hoek–Brown Strength Criterion
- Fabrication and Mechanical Properties of a Micro/Nanoscale Hybrid Composite
- Strain Rate Effects on the Interaction between an Eccentric Matrix Crack and a Circular Inclusion in Composites under Dynamic Loadings
- Multiscale Analysis of Particle Size-dependent Steady Compaction Waves in Granular Energetic Materials
- Numerical Simulation of Liquid-Fueled Detonations by an Eulerian–Lagrangian Model
- Effects of HMX Particle Size on the Shock Initiation of PBXC03 Explosive
- Investigation into the Spall Strength of Cast Iron
- Numerical Analysis of Shockwave Propagation in Urban Underpass
- Experimental Study on Dynamic Mechanical Properties of Amphibolites, Sericite-quartz Schist and Sandstone under Impact Loadings
Artikel in diesem Heft
- Masthead
- Effect of Aging Treatment on Dynamic Behavior of Mg-Gd-Y Alloy
- Effect of Aging Treatment on Dynamic Behavior of Mg-Gd-Y Alloy
- On the Energy of Dynamic Fractures
- On the Energy of Dynamic Fractures
- Analysis of Thermoviscoplastic Effects on Dynamic Necking of Pure Copper Bars during Impact Tension
- Analysis of Thermoviscoplastic Effects on Dynamic Necking of Pure Copper Bars during Impact Tension
- Mechanism of High-velocity Projectile Penetration into Concrete
- Mechanism of High-velocity Projectile Penetration into Concrete
- A Spherical Cavity Expansion Penetration Model for Concrete Based on Hoek–Brown Strength Criterion
- A Spherical Cavity Expansion Penetration Model for Concrete Based on Hoek–Brown Strength Criterion
- Fabrication and Mechanical Properties of a Micro/Nanoscale Hybrid Composite
- Fabrication and Mechanical Properties of a Micro/Nanoscale Hybrid Composite
- Strain Rate Effects on the Interaction between an Eccentric Matrix Crack and a Circular Inclusion in Composites under Dynamic Loadings
- Multiscale Analysis of Particle Size-dependent Steady Compaction Waves in Granular Energetic Materials
- Multiscale Analysis of Particle Size-dependent Steady Compaction Waves in Granular Energetic Materials
- Numerical Simulation of Liquid-Fueled Detonations by an Eulerian–Lagrangian Model
- Numerical Simulation of Liquid-Fueled Detonations by an Eulerian–Lagrangian Model
- Effects of HMX Particle Size on the Shock Initiation of PBXC03 Explosive
- Effects of HMX Particle Size on the Shock Initiation of PBXC03 Explosive
- Investigation into the Spall Strength of Cast Iron
- Investigation into the Spall Strength of Cast Iron
- Numerical Analysis of Shockwave Propagation in Urban Underpass
- Numerical Analysis of Shockwave Propagation in Urban Underpass
- Experimental Study on Dynamic Mechanical Properties of Amphibolites, Sericite-quartz Schist and Sandstone under Impact Loadings
- Experimental Study on Dynamic Mechanical Properties of Amphibolites, Sericite-quartz Schist and Sandstone under Impact Loadings
- Frontmatter
- Effect of Aging Treatment on Dynamic Behavior of Mg-Gd-Y Alloy
- On the Energy of Dynamic Fractures
- Analysis of Thermoviscoplastic Effects on Dynamic Necking of Pure Copper Bars during Impact Tension
- Mechanism of High-velocity Projectile Penetration into Concrete
- A Spherical Cavity Expansion Penetration Model for Concrete Based on Hoek–Brown Strength Criterion
- Fabrication and Mechanical Properties of a Micro/Nanoscale Hybrid Composite
- Strain Rate Effects on the Interaction between an Eccentric Matrix Crack and a Circular Inclusion in Composites under Dynamic Loadings
- Multiscale Analysis of Particle Size-dependent Steady Compaction Waves in Granular Energetic Materials
- Numerical Simulation of Liquid-Fueled Detonations by an Eulerian–Lagrangian Model
- Effects of HMX Particle Size on the Shock Initiation of PBXC03 Explosive
- Investigation into the Spall Strength of Cast Iron
- Numerical Analysis of Shockwave Propagation in Urban Underpass
- Experimental Study on Dynamic Mechanical Properties of Amphibolites, Sericite-quartz Schist and Sandstone under Impact Loadings
