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Meeting 2019 TMS Annual Meeting & Exhibition
Symposium TMS-DGM Symposium on Lightweight Metals: A Joint US-European Symposium on Challenges in Light Weighting the Transportation Industry
Presentation Title D-35: Development of New Magnesium Alloy Strengthened by Nano Second Phase Precipitation
Author(s) Yuansheng Yang, Tianjiao Luo, Minglin He, Shaozhen Zhu, Jixue Zhou, Shouqiu Tang
On-Site Speaker (Planned) Yuansheng Yang
Abstract Scope In order to meet the needs of lightweight of electric vehicles, several kinds of magnesium alloys are developed by multi-alloying and nano-phase precipitation method. Magnesium alloy ZA81M is typical among these alloys. The yield strength, ultimate tensile strength and elongation of ZA81M alloy after extrusion and aging treatment are 298 MPa, 348 MPa and 18.0%, respectively. Another Mg-Zn-Zr-Cu magnesium alloy is developed with YS 264 MPa, UTS 334 MPa and El. 20%. An Extruded Mg-Zn-Sn-Ca alloy developed by the method has tensile properties of YS 330 MPa, UTS 400 MPa and El. 20%. The TEM observation shows that in the matrix there are a lot of nano second phases which precipitated along [0001] orientation. These nano second particles effectively pin dislocations during the plastic deformation of the alloy. So, the strengths of the alloy are enhanced by the nano second phases blocking dislocation movement by pinning dislocations.
Proceedings Inclusion? Planned: Light Metals

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Novel Flexible SSM and HPDC Equipment to Process Secondary Aluminium Alloys for Decarbonising Lightweight Parts in Automotive Sector
A Theory for Designing Ductile Materials with Anisotropy
Assessing the Impact of Texture and its Gradients on the Forming Limits of an AA6xxx Sheet Alloy
D-35: Development of New Magnesium Alloy Strengthened by Nano Second Phase Precipitation
D-36: Issues of Castability of Magnesium Alloys
Effect of Split Sleeve Cold Expansion on the Residual Stress, Texture and Fatigue Life of Rolled AZ31B Magnesium Alloy
Increasing the Strength and Electrical Conductivity of AA6101 Aluminum by Nanostructuring
Influences of SiC Particle Additions on the Grain Refinement of Mg-Zn Alloys
Mechanical and Microstructural Characterization of Ultrasonic Metal Welded Large Cross Section Aluminum Wire/Copper Terminal Joints
The Dependence of Local Strain Distribution on Quench Rate for Extruded Al-Mg-Si-Mn-Fe Alloys
The Effect of through Thickness Texture Variation on the Anisotropic Mechanical Response of an Extruded Al-Mn-Fe-Si Alloy
The Effects of Strontium Addition on the Microstructures and Mechanical Properties of Al-7Si Alloy Reinforced with In-situ Al3Ti Particulates

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