超声处理对可降解Zn-0.5Sr合金组织及腐蚀性能的影响

兰州理工大学学报 ›› 2024, Vol. 50 ›› Issue (1): 1-9.

• 材料科学与工程 • 下一篇

超声处理对可降解Zn-0.5Sr合金组织及腐蚀性能的影响

刘建军, 张朋涛, 赵志鑫, 张蛟, 李庆林, 丁雨田^*

兰州理工大学材料科学与工程学院, 甘肃兰州 730050

收稿日期:2023-04-27 出版日期:2024-02-28 发布日期:2024-03-04
通讯作者: 丁雨田(1962-),男,甘肃榆中人,博士,教授,博导. Email:dingyt@lut.edu.cn
基金资助:
甘肃省自然科学基金(23JRRA752)

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

LIU Jian-jun, ZHANG Peng-tao, ZHAO Zhi-xin, ZHANG Jiao, LI Qing-lin, DING Yu-tian

School of Materials Science and Engineering, Lanzhou Univ. of Tech., Lanzhou 730050, China

Received:2023-04-27 Online:2024-02-28 Published:2024-03-04

摘要/Abstract

摘要： 以Zn-0.5Sr合金为对象,研究了不同超声功率(0、300、600、900 W)对Zn-0.5Sr合金显微组织及腐蚀性能的影响.结果表明:Zn-0.5Sr合金经过超声处理后,铸态组织中SrZn₁₃相由粗大的多边形转变为细小的块状,与未处理的合金相比较,对合金进行600 W超声处理后,合金的电化学腐蚀速率由2.078±0.141 mm/a增加至5.747±0.390 mm/a.当超声功率为600 W时,Zn-0.5Sr合金15、30 d的浸泡腐蚀速度分别为0.090±0.002 1、0.074±0.001 9 mm/a,是未经超声处理的 1.88、1.95倍.

关键词: Zn-0.5Sr合金, 微观组织, 超声处理, 腐蚀速度

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

中图分类号:

TG146.1

刘建军, 张朋涛, 赵志鑫, 张蛟, 李庆林, 丁雨田. 超声处理对可降解Zn-0.5Sr合金组织及腐蚀性能的影响[J]. 兰州理工大学学报, 2024, 50(1): 1-9.

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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超声处理对可降解Zn-0.5Sr合金组织及腐蚀性能的影响

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

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