Corrosion of Copper in a Concentrated LiNO3 Solution at a High Temperature
Corrosion of Copper in a Concentrated LiNO3 Solution at a High Temperature
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高温浓 LiNO3 溶液中铜的腐蚀
DOI：
10.20964/2017.03.21
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发表时间：
2017-03
影响因子：
1.5
通讯作者：
Su QQ
中科院分区：
文献类型：
--
作者：
Luo Chunhuan;Li Na;Li Yiqun;Su Qingquan;Su QQ
本文研究了浓度、温度、pH和Li2CrO4对铜在浓LiNO3溶液中腐蚀的影响。LiNO3浓度对铜的腐蚀有相反的影响。腐蚀速率随温度的升高而增加，但随pH值的升高而降低。在220 °C以下，Li2CrO4促进了由CuO、Cu2O和Cr2O3组成的薄而致密的钝化膜的形成，有效地抑制了铜的腐蚀。关于腐蚀性，吸收式热泵的最高适用温度从165 °C扩展到220 °C，使用LiNO3溶液代替LiBr溶液作为工作流体。
This paper presents the effects of the concentration, temperature, pH and Li2CrO4 on copper corrosion in a concentrated LiNO3 solution. The LiNO3 concentration had opposite effects on the copper corrosion. The corrosion rate increased with increasing temperatures, but decreased with increasing pH levels. Below 220 °C, Li2CrO4 promoted the formation of a thin and compact passive film comprising CuO, Cu2O and Cr2O3, which effectively inhibited the copper corrosion. Regarding corrosivity, the maximum applicable temperature for an absorption heat pump was extended from 165 °C to 220 °C using a LiNO3 solution instead of a LiBr solution as the working fluid.
影响因子：
12.7
作者：
Arthur P. Miller
通讯作者：
Arthur P. Miller
影响因子：
4.1
作者：
R. Stephenson
通讯作者：
R. Stephenson