中文摘要：

沿着在中等温度的以铜锌金焊接下面的典型的铝合金的深度方向的表面氧化物电影的进化借助于 X 光检查光电子光谱学(XPS ) 被调查。为有在 2.0wt% 下面的 Mg 内容的合金，是否在冷滚动状况下面或在中等温度的以铜锌金焊接期间处理，表面上的 Mg 元素的丰富没被检测，氧化物电影是纯 Al2O3。然而，氧化物电影在中等温度的以铜锌金焊接的过程期间显然成长了，并且厚度是大约 80 nm。为有在 2.0wt% 上面的 Mg 内容的合金，在冷滚动状况下面，原来的表面氧化物电影是纯 Al2O3。然而， Mg 元素显著地在中等温度的以铜锌金焊接期间在最外面的表面上被充实过程，和与 MgAl2O4 的小数量混合的基于 MgO 的氧化物电影与大约 130 nm 的厚度被形成。Mn 和 Si 的 alloying 元素没既不在冷滚动状况下面也不在以铜锌金焊接的 mediumtemperature 期间在表面上被充实为所有选择的铝合金的过程，和表面氧化物电影几乎类似于纯铝的，它是全部 Al2O3。

英文摘要：

The evolution of the surface oxide film along the depth direction of typical aluminum alloy under medium-temperature brazing was investigated by means of X-ray photoelectron spectroscopy （XPS）. For the alloy with Mg content below 2.0wt%, whether under cold rolling condition or during medium-temperature brazing process, the en-richment of Mg element on the surface was not detected and the oxide film was pure Al2O3. However, the oxide film grew obviously during medium-temperature brazing process, and the thickness was about 80 nm. For the alloy with Mg content above 2.0wt%, under cold rolling condition, the original surface oxide film was pure Al2O3. However, the Mg element was significantly enriched on the outermost surface during medium-temperature brazing process, and MgO-based oxide film mixed with small amount of MgAl2O4 was formed with a thickness of about 130 nm. The alloy-ing elements of Mn and Si were not enriched on the surface neither under cold rolling condition nor during medium-temperature brazing process for all the selected aluminum alloy, and the surface oxide film was similar to that of pure aluminum, which was almost entire Al2O3.