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研究了几种ＺｒＳｎＮｂＦｅＣｒ新锆合金在４００℃，１０．３ＭＰａ及在３６０℃，１８．６ＭＰａ含７×１０－５锂的氢氧化锂水中的耐蚀行为；用ＴＥＭ和ＳＥＭ对合金中的第二相的结构和组分进行了分析。研究结果表明：添加少量Ｎｂ（０．２ｗ％）的该类合金具有最好的综合耐蚀性能；低Ｆｅ／Ｃｒ比的高Ｎｂ（１．０ｗ％）合金耐蚀性能均较差；而高Ｆｅ／Ｃｒ比的高Ｎｂ合金在４００℃蒸汽中具有较好的耐蚀性能，但在氢氧化锂水中则较差。对产生这些差异的原因从第二相结构、组分等角度进行了分析。
The corrosion behavior of several ZrSnNbFeCr new zirconium alloys was studied at 400 ℃, 10.3MPa and at a temperature of 360 ℃ and 18.6MPa in lithium hydroxide water containing 7 × 10-5 lithium. The corrosion resistance of the second ZrSnNbFeCr alloy was investigated by TEM and SEM. The phase structure and composition were analyzed. The results show that this kind of alloy with the addition of a small amount of Nb (0.2w%) has the best comprehensive corrosion resistance. The corrosion resistance of the high Nb (1.0w%) alloy with low Fe / Cr ratio is poor. The high Nb alloy with Fe / Cr ratio has better corrosion resistance at 400 ℃ steam, but less in lithium hydroxide water. The reasons for these differences are analyzed from the perspective of the second phase structure and composition.