通过对岛状缺陷进行形貌观察、化学成分分析和表面处理，分析了锆合金板材表面在酸洗后产生岛状缺陷的原因，并提出了相应的解决措施。结果表明：岛状缺陷是由板材表面附着的杂质或氧化层所造成的酸洗速率不均匀而产生的；为避免岛状缺陷的产生，可在锆合金板材酸洗前增加抛光工序，使得酸洗前板材表面平整，或采用含铌合金板材，使酸洗时形成NbF薄膜，从而减少岛状缺陷的数量。

The reason of island defects on the the surface of zirconium alloy plate after pickling was analyzed by morphology observation of island defects, chemical composition analysis and surface treatment tests. The resolving measures was risen to avoid the island defects. The results show that the island defects were formed because the inclusion and oxide layer on the surface of plate resulted in the different pickling rates. The island defects could be avoided by adding the polishing before pickling to uniform the plate surface and using zirc-alloy with niobium to form NbF film during picking that could reduce the amount of island defects.