Effect of ultrasonic treatment on microstructure and properties of degradable Zn-0.5Sr alloy

Abstract

Abstract: The effects of different ultrasonic power (0,300,600,900 W) on the microstructure and corrosion properties of Zn-0.5Sr alloy were studied. The results show that the SrZn₁₃ phase in the as-cast Zn-0.5Sr alloy changes from coarse polygon to fine block after ultrasonic treatment.Compared with the untreated alloy, the electrochemicalcorrosion rate of the alloy increases from 2.078±0.141 mm/a to 5.747±0.390 mm/a when the ultrasonic power is 600 W.The immersion corrosion rates of Zn-0.5Sr alloy after 15 and 30 days are0.090±0.002 1、0.074±0.001 9 mm/a, respectively, which are 1.88 times and 1.95 times higher than that of the untreated alloy.

Key words: Zn-0.5Sr alloy, microstructure, ultrasonic treatment, corrosion rate

CLC Number:

TG146.1

LIU Jian-jun, ZHANG Peng-tao, ZHAO Zhi-xin, ZHANG Jiao, LI Qing-lin, DING Yu-tian. Effect of ultrasonic treatment on microstructure and properties of degradable Zn-0.5Sr alloy[J]. Journal of Lanzhou University of Technology, 2024, 50(1): 1-9.

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