Corrosion and passivation of annealed Ti-20Zr-6.5Al-4V alloy
Corrosion and passivation of annealed Ti-20Zr-6.5Al-4V alloy
复制标题
退火Ti～20Zr～6.5Al～4V合金的腐蚀与钝化
DOI：
10.1016/j.corsci.2015.08.038
复制
发表时间：
2015-12-01
影响因子：
8.3
通讯作者：
Liu, Riping
中科院分区：
文献类型：
--
作者：
Yang, Yahui;Xia, Chaoqun;Liu, Riping
Corrosion and passivation behaviors of annealed Ti-20Zr-6.5Al-4V alloys were investigated in NaCl and HCl solutions. All the alloys exhibited spontaneous passivity and low corrosion current densities in 3.5% NaCl solution. An active-passive transition behavior was observed in 5% HCl solution. The corrosion resistance decreased with the increase in annealing temperature. Scanning electron microscopy analysis of the samples after the immersion tests revealed that the alpha/beta interphase boundaries act as the preferential dissolution locations. The volume fraction of beta phase as well as the grain size was identified as the main factor affecting the corrosion performance of the alloys. (C) 2015 Elsevier Ltd. All rights reserved.
