High temperature oxidation of fuel cladding candidate materials in steam-hydrogen environments
High temperature oxidation of fuel cladding candidate materials in steam-hydrogen environments
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DOI：
10.1016/j.jnucmat.2013.05.047
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发表时间：
2013-09-01
影响因子：
3.1
通讯作者：
Keiser, J. R.
中科院分区：
文献类型：
--
作者：
Pint, B. A.;Terrani, K. A.;Keiser, J. R.
正在研究Zr合金的替代燃料包壳材料以提高事故耐受性，这具体涉及在>= 1200摄氏度下短时间内对蒸汽或蒸汽-H-2环境的抗氧化性。基于一系列商业和模型合金的比较，常规奥氏体钢不具有足够的抗氧化性，仅与18 Cr-10 Ni相似。较高合金化的310型不锈钢具有保护性，但Ni不是该应用的理想合金添加剂。在1350 ℃下的结果表明，FeCrAl合金和CVD SiC在蒸汽中保持抗氧化性。在1200摄氏度下，高（>= 25%Cr）铁素体合金似乎是该应用的良好候选者。较高的压力（高达20.7 bar）和H-2添加剂似乎对大多数抗氧化合金的氧化行为影响有限，但较高的压力加速了抗氧化性较低的钢的最大金属损失，并且与100% H2O相比，在10.3 bar的H-2-50%H2O环境中观察到317 L型管材的金属损失较少。(C)2013爱思唯尔有限公司版权所有。
Alternative fuel cladding materials to Zr alloys are being investigated for enhanced accident tolerance, which specifically involves oxidation resistance to steam or steam-H-2 environments at >= 1200 degrees C for short times. Based on a comparison of a range of commercial and model alloys, conventional austenitic steels do not have sufficient oxidation resistance with only similar to 18Cr-10Ni. Higher alloyed type 310 stainless steel is protective but Ni is not a desirable alloy addition for this application. Results at 1350 degrees C indicated that FeCrAl alloys and CVD SiC remain oxidation resistant in steam. At 1200 degrees C, high (>= 25% Cr) ferritic alloys appear to be good candidates for this application. Higher pressures (up to 20.7 bar) and H-2 additions appeared to have a limited effect on the oxidation behavior of the most oxidation resistant alloys, but higher pressures accelerated the maximum metal loss for less oxidation resistant steels and less metal loss was observed for type 317 L tubing in a H-2-50%H2O environment at 10.3 bar compared to 100% H2O. (C) 2013 Elsevier B.V. All rights reserved.