评述了铌含量对锆合金组织和耐蚀性的影响,认为含铌量是锆合金耐蚀性的重要控制因素,并影响基体晶粒的大小;时效退火析出的第二相粒子的类型、分布和体积分数随铌含量的增加而变化;一定条件下,Zr-x%Nb系合金的基体含铌量接近于平衡固溶度时,锆合金具有较好的耐蚀性.
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