Corrosion Mechanism and Improvement of Inconel Heat Component in High Temperature and High Pressure Water Environment
摘 要
在反应堆热工水力试验台架中,热源模拟体的加热组件由大量Inconel (Inconel 690)管及部分铜质材料组成,在通电的情况下,Inconel管会产生热量加热流体。经过一系列的高温高压(温度300℃,压力15.5 MPa)热态试验后,部分位置Inconel管及铜材表面发生了较为严重的腐蚀。对反应堆热工水力试验中使用的热源模拟体中的加热组件在材料成分、材料性能、腐蚀情况等方面进行了介绍,对腐蚀原因进行了分析,并给出改善措施及结果。
Abstract
In a reactor thermal hydraulic test bench, the heating component in heat source simulation body was composed of a large number of Inconel (Inconel 690) tubes and a part of copper materials. In the case of energization, the Inconel tubes generated heat to heat the fluid. After a series of high temperature and high pressure (temperature 300℃, pressure 15.5 MPa) hot state test, serious corrosion occurred on the surface of Inconel and copper tubes. The heating components in the heat source simulation used in the reactor thermal hydraulic test were introduced in terms of material composition, material properties and corrosion, and the causes of corrosion were analyzed, and the improvement measures and results were given.
中图分类号 TG174 DOI 10.11973/fsyfh-201811009
所属栏目 试验研究
基金项目
收稿日期 2017/5/4
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引用该论文: XU Haiyan,LU Donghua,WU Xiaohang,SU Qianhua,WANG Li,LI Chengtao. Corrosion Mechanism and Improvement of Inconel Heat Component in High Temperature and High Pressure Water Environment[J]. Corrosion & Protection, 2018, 39(11): 854
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参考文献
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【5】林震霞,邱绍宇,肖军,等. Cl-和Cu2+对国产690合金应力腐蚀性能的影响[J]. 核动力工程,2015,36(1):50-54.
【6】王俭秋,黄发,柯伟. Inconel 690TT和Incoloy 800MA蒸汽发生器管材在高温高压水中的腐蚀行为研究[J]. 金属学报,2016,52(10):1333-1344.
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