Fluoridation and oxidation characteristics of JLF-1 and NIFS-HEAT-2 low-activation structural materials
Fluoridation and oxidation characteristics of JLF-1 and NIFS-HEAT-2 low-activation structural materials
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DOI：
10.1016/j.jnucmat.2008.12.296
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发表时间：
2009-04
影响因子：
3.1
通讯作者：
T. Nagasaka;M. Kondo;T. Muroga;N. Noda;A. Sagara;O. Motojima;A. Suzuki;T. Terai
中科院分区：
文献类型：
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作者：
T. Nagasaka;M. Kondo;T. Muroga;N. Noda;A. Sagara;O. Motojima;A. Suzuki;T. Terai
研究了JLF-1（Fe-9 Cr-2 W-0.1C）和NIFS-HEAT-2（V-4Cr-4 Ti）在Flibe（2LiF+ BeF_2）熔盐（823 K）中2003 h、H_2O-47%HF溶液（室温）中2 min、He-（0-1%）HF混合气体（823 K）中2.5- 100 h的氟化和氧化行为。在所有试验条件下，氧化作用主导氟化作用，即使氟化剂HF中的F原子比氧化剂H2O和O2中的O原子丰富16倍。腐蚀产物主要是Cr2 O3，而氟化物在非常有限的表面区域被指示。JLF-1在He-HF混合气体中的耐腐蚀性能优于NIFS-HEAT-2。
Fluoridation and oxidation of JLF-1 (Fe–9Cr–2W–0.1C) and NIFS-HEAT-2 (V–4Cr–4Ti) were examined under various corrosion conditions, such as Flibe (2LiF+BeF2) molten salt at 823K for 2003h, H2O–47%HF solution at RT for 2min, and He–(0–1%)HF gas mixture containing moisture and O2gas impurities at 823K for 2.5–100h. Oxidation dominated fluoridation under all test conditions, even when the fluoridation agent, the F atoms in HF, was 16× more plentiful than the oxidation agent, O atoms in H2O, and O2. Corrosion products were mainly considered as Cr2O3, while fluoride was indicated in a very limited surface region. JLF-1 exhibited better corrosion resistance in He–HF gas mixture tests than NIFS-HEAT-2.