摘要
对不同工艺生产的Ｚｒ４ 管材， 采用酸洗、不酸洗、预膜、不预膜４ 种组合状态进行表面处理， 研究了它在５００℃过热蒸汽中的腐蚀行为。酸洗后可提高抗疖状腐蚀性能， 预生氧化膜（ 预膜） 能起到延缓疖状腐蚀的作用。机械抛光产生的形变层以及伴有较深划痕的粗糙表面会加速腐蚀， 不恰当的酸洗过程会造成氟污染也使管材内表面的耐腐蚀性能下降。
Abstract: The effect of the surface treatment on nodular corrosion of Zircaloy 4 tube was investigated by means of autoclave, OM, SEM and EDAX etc . The results show that the effect of surface treatment is obvious. The acid picking surface can lead to a good nodular corrosion resistance. The pre oxidation film can play a role on delaying nodular corrosion. However, the deformation layer and rough traces on the surface of tube and unsuitable picking result in the poor corrosion resistance.
出处
《稀有金属》
EI
CAS
CSCD
北大核心
1999年第6期458-460,共3页
Chinese Journal of Rare Metals
关键词
表面处理
疖状腐蚀
锆合金
压水反应堆
Zircaloy 4 tube, Surface treatment, Nodular corrosion resistance
