【摘要】 试验研究了中间退火制度对新锆合金板材耐蚀性能的影响。结果表明:采用较低的中间退火温度有利于改善新锆合金的耐蚀性能,所研究的两种新锆合金NZ2和NZ8的耐蚀性能明显优于Zr-4合金;氧化膜中第二相TEM研究表明,采用低温加工工艺制度,获得晶内有细小、弥散、均匀分布第二相的完全再结晶组织,对提高新合金的耐蚀性能是非常重要的。更多还原

【Abstract】 The corrosion resistance of zirconium-based alloys plates obtained by different intermediate annealing processing is investigated. Corrosion tests under different condition in static autoclave indicate that low temperature annealing combination is benificial to improve corrosion resistance for both two alloys (NZ2, NZ8) investigated and the two alloys have superior corrosion resistance to zircaloy-4 in out of pile tests. Further study carried out by means of TEM shows the fine, dispersed, evenly distributed precipitates in recrystallizedα-Zr can be obtained by low temperature processing, this is just the reason for the superior corrosion resistance of plates subjecting to low intermediate annealing combination processing.更多还原