原子能科学技术Issue(3)：416-421,6.DOI:10.7538/yzk.2014.48.03.0416
候选材料在650℃超临界水中的腐蚀行为研究
Study on Corrosion Behavior of Candidate Materials in 650 ℃ Supercritical Water
摘要
Abstract
The general corrosion behavior of three candidate materials (347 ,HR3C and In-718 ) was investigated in 650 ℃ /25 MPa deionized water . Morphology and composition of the surface oxide film with different exposure time were observed through FEG-SEM and EDS .The phase constitute was analyzed by GIXRD .For all the test materials ,the weight loss follows typical parabolic law and the weight loss of 347 shows more than 40 times higher than that of HR3C and In-718 .The oxide film of three alloys mainly consists of Ni(Cr, Fe)2O4 .In-718 shows severe pitting and the oxide film of 347 appears significant spalling ,while HR3C has compact oxide film .In the high temperature supercritical water ,the high Cr content may enhance the general corrosion property of the alloys ,while addition of Nb may be detrimental to the pitting resistance of alloys .关键词
不锈钢/超临界水/腐蚀行为/氧化膜Key words
stainless steel/supercritical water/corrosion behavior/oxide film分类
矿业与冶金引用本文复制引用
马姝丽,罗英,张强,王浩,邱绍宇..候选材料在650℃超临界水中的腐蚀行为研究[J].原子能科学技术,2014,(3):416-421,6.基金项目
核能开发资助项目；973计划资助项目（2007CB209800）；四川省青年科技基金资助项目 （）
