Startseite Technik Effect of grain size on the microstructure and mechanical properties of Mg-4Y-3Nd-0.5Zr alloy
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Effect of grain size on the microstructure and mechanical properties of Mg-4Y-3Nd-0.5Zr alloy

  • Junying Yi , Zhiliang Ning und Jianfei Sun
Veröffentlicht/Copyright: 1. Juni 2014
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 105 Heft 6

Abstract

Various grain sizes of an Mg-4Y-3Nd-0.5Zr alloy were obtained by changing the cooling rate in a casting with wall thickness from 10 to 70 mm, and the effect of grain size on the microstructure and mechanical properties was investigated. When the cooling rate increased from 23.6 to 240.2 K min−1, the grain size of as-cast specimens decreased from 115 to 42 μm, and the sizes of the eutectic phase morphology decreased. The ultimate tensile strength and tensile yield strength for heat-treated materials decreased 12 %–14 % due to the increase in grain size by decreasing the cooling rate. Meanwhile, both the ultimate tensile strength and yield strength showed a linear relationship with d−1/2 (d is the grain size).

Keywords: Mg-4Y-3Nd-0.5Zr alloy; Grain size; Microstructure; Mechanical properties
*Correspondence address, Prof. Jianfei Sun, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, P. R. China, Tel: +86-451-86413904, Fax +86-451-86413904, E-mail:

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Received: 2013-11-29
Accepted: 2014-04-03
Published Online: 2014-06-01
Published in Print: 2014-06-12

© 2014, Carl Hanser Verlag, München

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Original Contributions
  4. Thermodynamic modeling of the In–Pt–Sb system
  5. Classical controlled rolling of low C steels microalloyed with Ti and Mo
  6. Development of carbide intermetallic layer by electric discharge alloying on AISI-D2 tool steel and its wear resistance
  7. Comparison of fatigue crack growth rate of selective laser sintered RapidSteel via computational fracture mechanics
  8. Wear resistance and fracture mechanics of WC–Co composites
  9. Thermal expansion behavior of CNT/Ag nanocomposite
  10. Thermophysical properties of solid phase rhodium measured by the pulse calorimetry technique over a wide temperature range
  11. Influence of Co3O4 addition on the ionic conductivity and microstructural properties of yttria-stabilized zirconia (8YSZ)
  12. High-activity of Pd catalyst supported on antimony tin oxide for hydrogen peroxide electroreduction
  13. Investigation of low k interfacial layer characteristics of LaAlO3 thin films grown on Si (100)
  14. In-situ catalytic growth of MgAl2O4 spinel whiskers in MgO–C refractories
  15. Short Communications
  16. Preparation and characterization of boron nitride/carbon fiber composite with high specific surface area
  17. Crevice corrosion resistance of high alloyed materials in 3.5 % NaCl solution
  18. Effect of grain size on the microstructure and mechanical properties of Mg-4Y-3Nd-0.5Zr alloy
  19. People
  20. Professor Ulrich Martin on his 65th birthday
  21. DGM News
  22. DGM News
https://doi.org/10.3139/146.111079
Schlagwörter für diesen Artikel
Mg-4Y-3Nd-0.5Zr alloy; Grain size; Microstructure; Mechanical properties

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Original Contributions
  4. Thermodynamic modeling of the In–Pt–Sb system
  5. Classical controlled rolling of low C steels microalloyed with Ti and Mo
  6. Development of carbide intermetallic layer by electric discharge alloying on AISI-D2 tool steel and its wear resistance
  7. Comparison of fatigue crack growth rate of selective laser sintered RapidSteel via computational fracture mechanics
  8. Wear resistance and fracture mechanics of WC–Co composites
  9. Thermal expansion behavior of CNT/Ag nanocomposite
  10. Thermophysical properties of solid phase rhodium measured by the pulse calorimetry technique over a wide temperature range
  11. Influence of Co3O4 addition on the ionic conductivity and microstructural properties of yttria-stabilized zirconia (8YSZ)
  12. High-activity of Pd catalyst supported on antimony tin oxide for hydrogen peroxide electroreduction
  13. Investigation of low k interfacial layer characteristics of LaAlO3 thin films grown on Si (100)
  14. In-situ catalytic growth of MgAl2O4 spinel whiskers in MgO–C refractories
  15. Short Communications
  16. Preparation and characterization of boron nitride/carbon fiber composite with high specific surface area
  17. Crevice corrosion resistance of high alloyed materials in 3.5 % NaCl solution
  18. Effect of grain size on the microstructure and mechanical properties of Mg-4Y-3Nd-0.5Zr alloy
  19. People
  20. Professor Ulrich Martin on his 65th birthday
  21. DGM News
  22. DGM News
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