摘要
对中国先进研究堆（ＣＡＲＲ）燃料元件包壳候选材料ＬＴ２４、３０５铝合金进行了温度为２００℃、流速为１０ｍ／ｓ的堆外动水腐蚀试验研究。腐蚀后试样的金相显微镜观察、Ｘ射线衍射分析、扫描电镜及电子探针分析、腐蚀速率的计算及氧化膜厚度的测量等结果表明：从腐蚀类型及其程度和氧化膜的剥落情况等方面看，３０５铝合金材料的抗中温动水腐蚀性能优于ＬＴ２４铝合金；退火态和冷轧态的ＬＴ２４铝合金的耐蚀性能未显示出差异。试验结果为ＣＡＲＲ燃料元件包壳选材提供参考依据。
The out of pile middle temperature water side corrosion test of fuel cladding LT24 and 305 Al alloys for China advanced research reactor (CARR) under 100 ℃, 10 m/s dynamic condition were performed. The specimens exposured were analyzed by microscope examination, X ray diffraction, SEM, and EPDA ect. The results of analyses indicate that the corrosion resistance of 305 Al alloy is better than that of LT24 Al alloy. The examinations show no diference of corrosion resistance between annealing and cold rolling of LT24 Al alloys.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
1999年第2期134-140,共7页
Atomic Energy Science and Technology
关键词
燃料元件
包壳
铝合金
中温动水腐蚀
研究堆
Fuel cladding Al alloy Middle temperature dynamic water side corrosion
