Open AccessCorrosion Degradation Behavior of Forged Mg-Zn-Zr/-Y Alloy in Simulated Body Fluid
Author(s) -
Chao Ma,
Dongguang Xu,
Hao Yang,
Zhiguo Zhong,
Zhiwen Lu
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1676/1/012018
Subject(s) - corrosion , materials science , alloy , metallurgy , magnesium , immersion (mathematics) , magnesium alloy , simulated body fluid , electrochemistry , composite material , scanning electron microscope , chemistry , electrode , mathematics , pure mathematics
The corrosion degradation rate of pure magnesium and forged Mg-Zn-Zr/-Y magnesium alloy was compared by static immersion corrosion weight loss experiment and electrochemical corrosion experiment at constant temperature (37±0.5°C) and room temperature (25±1°C) SBF to simulate the corrosion degradation rate in body fluids. The results show that the corrosion resistance of magnesium alloy can be improved by adding Zn, Zr, Y compared with pure magnesium. The results of static immersion corrosion test and electrochemical corrosion test of forged Mg-Zn-Zr-Y show that the corrosion resistance of magnesium alloy can be improved by adding Zn, Zr, Y element. The average corrosion rate of the forged Mg-Zn-Zr-Y alloy was 0.62mm/a by weight loss method after 240 h immersion corrosion in SBF at 37 ± 0.5 °C, and the corrosion resistance of forged Mg-Zn-Zr-Y alloy was better than Mg-Zn-Zr alloy.