海洋工程用超低碳贝氏体钢力学性能和海水腐蚀行为Mechanical properties and marine corrosion behavior of ULCB steel applied for off-shore oil platform
董杰,崔文芳,张思勋,刘春明
摘要(Abstract):
以传统耐蚀型CrMoAl系和CuPCr系钢为对比实验钢,研究海洋工程用超低碳贝氏体钢(ULCB)在室温下的组织,力学性能和低温韧性,以及在模拟海水全浸区的腐蚀行为。通过失重法测得实验钢在不同腐蚀时间下的腐蚀速率,利用X-射线衍射仪和扫描电镜分析钢在全浸腐蚀后表面腐蚀产物特征,采用电化学方法测定极化曲线。研究表明:ULCB钢的室温强度、塑性及低温冲击韧性明显优于对比实验钢,而抗腐蚀性介于二者之间。
关键词(KeyWords): 超低碳贝氏体钢;强度;韧性;海水腐蚀速率;极化曲线
基金项目(Foundation): 教育部跨世纪优秀人才培养计划基金资助项目(2002594)
作者(Author): 董杰,崔文芳,张思勋,刘春明
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