Zr-Nb-Cu合金的水蒸气氧化行为研究  

Research on Steam Oxidation Behavior of Alloy Zr-Nb-Cu

作　　者：柏广海[1,2] 王荣山[1] 翁立奎[1] 刘二伟[1] 张晏玮[1] 耿建桥[1] 李金山[2] 

机构地区：[1]苏州热工研究院有限公司,江苏苏州215004 [2]西北工业大学凝固技术国家重点实验室,陕西西安710072

出　　处：《铸造技术》2015年第4期830-833,共4页Foundry Technology

基　　金：国家高科技研究发展计划资助项目(2008AA031701)

摘　　要：研究了Zr-Nb-Cu合金在非等温和等温条件下的水蒸气氧化行为。结果表明,在非等温阶段,升温速度越高,合金的氧化质量增加越低,但在随后的等温阶段氧化质量增加越高。根据非等温阶段合金水蒸气氧化质量增加曲线,获得了氧化激活能与氧化质量增加之间的关系。另外,非等温阶段升温速度越大,氧化膜表面开裂现象越明显。The steam oxidation behavior of the alloy Zr-Nb-Cu under non-isothermal and isothermal conditions was investigated. The results show that the oxidation mass gain decreases with the increase of temperature during non-isothermal process, but oxidation mass gain increases in the subsequent isothermal process. The relationship between oxidation activative energy and mass gain is obtained based on the mass grain curves of the alloy during non-isothermal process. Furthermore, the crack and bulge of oxidation film is more obvious with the increase of heating rate during non-isothermal process.

关 键 词：Zr-Nb-Cu合金 非等温/等温 水蒸气氧化 激活能 微观组织 

分 类 号：TG146.414[一般工业技术—材料科学与工程]