加工工艺对Zr-4合金管材腐蚀性能影响
Influence of Processing Technology on Corrosion Performance of Zr-4 Alloy Pipe
徐文征 1罗倩倩 1李小影 1高博1
作者信息
- 1. 国核宝钛锆业股份公司,陕西 宝鸡 721013
- 折叠
摘要
采用Zr-4合金Φ63.5 mm×10.92 mm管坯,在不同轧制工艺下,即不同轧制Q值和累积退火参数下制备管材,对比了管材耐疖状腐蚀性能和长期耐均匀腐蚀性能,结果表明:累积退火参数在 0.96×10-18～1.17×10-18 h时,第二相颗粒尺寸在 70～90 nm的范围内,第二相颗粒尺寸随着累积退火参数降低而减小,可在一定程度上改善Zr-4 合金管材耐疖状腐蚀性能;轧制中间道次Q值从0.687 提升至1.0 以上时,管材径向织构因子增大,耐疖状腐蚀性能显著提升;在上述工艺参数范围内,管材长期耐均匀腐蚀性能无明显变化.
Abstract
In this paper,three kinds of pipes were processed from the Zr-4 alloy tube with size of Φ 63.5 mm×10.92 mm under different rolling process parameters,namely under different rolling Q values and cumulative annealing parameters,the nodular and long term uniform corrosion resistance were compared.The results show that,when cumulative annealing param-eters are 0.96×10-18～1.17×10-18 h,the average sizes of the second phase particles of pipes are in the range of 70～90 nm,the size of the second phase particles becomes finer when cumulative annealing parameter decreases,the nodular corrosion resistance of Zr-4 alloy pipe is better.When the Q value of intermediate pass is increased from 0.687 to more than 1.0,the radial texture of pipe is enhanced,and the nodular corrosion resistance is significantly improved.Within the above parameter range,the long term uniform corrosion performance has no obvious change.
关键词
Zr-4合金/腐蚀性能/Q值/显微组织Key words
Zr-4 alloy/corrosion performance/Q value/microstructure引用本文复制引用
出版年
2024
NETL
NSTL
万方数据