| The corrosion behavior of a nickel-containing 18K gold jewelry in artificial sweat was studied by scanning electron microscopy, X-ray photoelectron spectroscopy and inductively coupled plasma optical emission spectrometry (ICP-AES). The results show that pitting corrosion occurs on the surface of the alloy after immersion test. The pitting component is mainly the corrosion product of copper and nickel. After the polarization experiment, some white particles and corrosion pits are distributed on the surface of the alloy. The white particles are analyzed as silver chloride. The ICP-AES analyzing results show that, in the joint elements, Zn and Ni were preferentially corroded and eluted, followed by the Cu element. |
