摘要
设计并制造了钨微电极扫描测试装置 ,由微参比电极、自动扫描机械装置、电解池、A/D转换器和计算机组成 .整套装置简易可行 ,能够在极缓慢速度下对微区电位进行自动扫描 ,评价焊接接头表面电化学不均匀性的程度 .实验表明 ,在酸性环境下 ,钨微电极也具有良好的稳定性与重现性 。
A potential measuring apparatus using tungsten microprobe has been designed and constructed,which is composed of reference microprobe,scanning mechanical device,electrolytic cell,analog-digital converter and computer.The apparatus is simple but can evaluate the distribution of free corrosion potenftial on the surface of welded joints.Tungsten microprobe is used in the apparatus,and it is confirmed by experiments that the stability and reproducibility of tungsten microprobe meet the requirements of measuring the corrosion potentials on metal surfaces in acid environment.
出处
《腐蚀科学与防护技术》
CAS
CSCD
北大核心
2002年第3期182-184,共3页
Corrosion Science and Protection Technology
