التفاصيل البيبلوغرافية
| العنوان: |
Effect of severe plastic deformation and post-annealing on the mechanical properties and bio-corrosion rate of AZ31 magnesium alloy. |
| المؤلفون: |
Jie Bin, Bryan Shi, Tan, Yong Teck, Fong, Kai Soon, Tan, Ming Jen |
| المصدر: |
Procedia Engineering; 2017, Vol. 207, p1475-1480, 6p |
| مصطلحات موضوعية: |
MAGNESIUM alloy corrosion, MATERIAL plasticity, ANNEALING of metals, MECHANICAL properties of metals, DUCTILITY |
| مستخلص: |
In this work, the effect of fine grain sizes on the mechanical and bio-corrosion properties of AZ31 magnesium alloy was studied. Bio-corrosion refers to the accelerated degradation of metal within the human body. Fine-grained (~1.5 µm) AZ31 was obtained through Severe Plastic Deformation (SPD) via three cycles of Constrained Groove-Pressing (CGP) under elevated temperature. The effects of CGP and post-annealing (at 473 K for 15 and 30 min) on bio-corrosion were preliminarily investigated by potentiodynamic polarization measurements and constant immersion tests. Results obtained show that the as-processed samples with annealing exhibited improvements in yield strength and ductility while the bio-corrosion rate in Hank’s solution remains fairly similar during the early stage. [ABSTRACT FROM AUTHOR] |
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