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Effect of trace Ti on the microstructure and mechanical properties of AM50 alloy

  • Q. D. Wang , J. B. Lin , M. P. Liu and W. J. Ding
Published/Copyright: May 23, 2013
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 99 Issue 7

Abstract

The effect of trace additions (0 – 0.1 wt.%) of titanium on the microstructure, mechanical properties and creep resistance of an AM50 alloy have been studied. The microstructure was examined using optical microscopy and scanning electron microscopy. Results showed that the microstructures of AM50 alloy were obviously refined by trace Ti addition, although the actual content of Ti was only about 0.0025 – 0.0079 wt.%. The refining ability of titanium was ascribed to its large growth restriction factor, and it can be described as a constitutional undercooling driven mechanism. As-cast samples were subjected to tensile tests at room temperature, 150 °C and 200 °C. A considerable increase in tensile properties was observed due to grain refinement, especially the ultimate tensile strength and elongation. In addition, the creep resistance of AM50 alloy was dramatically increased by Ti addition.

Keywords: Magnesium alloy; Titanium; Grain refining; Microstructure; Mechanical properties
* Correspondence address, Wang Qudong National Engineering Research Center of Light Alloy Net Forming School of Materials Science & Engineering Shanghai Jiaotong University Dongchuan Road 800, Shanghai 200240, P.R. China Tel.: +86 21 54742715 Fax: +86 21 34202794 E-mail:

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Received: 2007-8-31
Accepted: 2008-5-3
Published Online: 2013-05-23
Published in Print: 2008-07-01

© 2008, Carl Hanser Verlag, München

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  20. Notifications
  21. DGM News
https://doi.org/10.3139/146.101704
Keywords for this article
Magnesium alloy; Titanium; Grain refining; Microstructure; Mechanical properties

Articles in the same Issue

  1. Contents
  2. Contents
  3. Basic
  4. On the reaction scheme and liquidus surface in the ternary system Al–Si–Ti
  5. Experimental study of the phase equilibria of the Ni – Zr system
  6. Tensile behaviour of micro-sized copper wires studied using a novel fibre tensile module
  7. Dislocation densities in soft and hard oriented grains of compression deformed textured NiAl polycrystals
  8. The influence of plastic instabilities on the mechanical properties of a high-manganese austenitic FeMnC steel
  9. Modeling of isothermal bainite formation based on the nucleation kinetics
  10. Application of the Kaptay model in calculation of ternary liquid alloys' viscosities
  11. The influence of the austenite dispersion on phase transformation during the austempering of ductile cast iron having a dual matrix structure
  12. Effect of trace Ti on the microstructure and mechanical properties of AM50 alloy
  13. Applied
  14. Diffusion bonding of the Mo-base alloy TZM with interlayers
  15. Amorphization, nanocrystallization and magnetic properties of mechanically milled Sm–Co magnetic powders
  16. Wear behavior of plasma nitrided AISI 420 stainless steel
  17. Hot extrusion of α and α/β-brass alloys
  18. Role of surface texture and roughness parameters in friction and transfer layer formation under dry and lubricated sliding conditions
  19. The emergence and disappearance of a high density of microcracks in nitrided Fe-4.65 at.% Al alloy
  20. Notifications
  21. DGM News
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