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.
出处
《铸造技术》
CAS
北大核心
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)
