项目名称： 水基纳米流体对金属腐蚀及腐蚀抑制机理的研究

项目编号： No.51471104

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 一般工业技术

项目作者： 葛红花

作者单位： 上海电力大学

项目金额： 79万元

中文摘要： 纳米流体因其显著的节能效益而成为近年来研究热点。水基纳米流体是一种很有前景的冷却剂，未来替代传统冷却水应用于各类热交换系统的可能性很大。初步研究发现，高活性纳米颗粒的加入将引起金属/水界面及冷却水物理化学性质变化，从而引起金属腐蚀与控制机制的变化。因而产生一种新的腐蚀体系--纳米流体中金属的腐蚀。为了深入认识这种腐蚀体系，本项目就纳米流体对金属的腐蚀行为、规律及腐蚀抑制机理展开研究。 本项目以热交换冷却水系统常用金属材料为研究对象，采用电化学测量方法并结合溶液分析、结构分析和表面分析技术研究金属/纳米流体界面特性、水基纳米流体物理化学性质、金属-纳米流体体系中金属表面状态及金属电化学腐蚀过程和规律；通过纳米颗粒的吸附特性、表面活性及其与缓蚀阻垢剂的相互作用机制研究，揭示水基纳米流体中缓蚀阻垢剂作用机理及对金属缓蚀性能影响。为深入认识水基纳米流体中金属腐蚀机理和防腐蚀方法提供理论和方法支持。

中文关键词： 水基纳米流体；金属腐蚀；腐蚀机理；腐蚀抑制；缓蚀剂

英文摘要： Nanofluids have become a research hotspot for its remarkable energy efficiency in recent years. Water-based nanofluid is a promising coolant, and the possibility of future alternative to traditional cooling water used in various heat exchange systems is great. Preliminary studies have found that the addition of high active nanoparticles to water could cause the changes of physical chemictry properties of metal/water interface and the cooling water, and therefore causing changes in mechanism of metal corrosion and control. This results in a new corrosion system: metal corrosion in nanofluids. To better understand this corrosion system, this project is focus on the corrosion behavior of metals and corrosion inhibition mechanism in various nanofluids. Several metals and alloys commonly used in heat exchange cooling water systems will be applied as target materials in this project. Electrochemical measurements combined with solution analysis, structural analysis and surface analysis techniques will be employed to investigate the characteristics of metal/nanofluid interface, physical chemistry properties of water-based nanofluids, surface composition and structure and the processes of electrochemical corrosion of metallic materials in metal-nanofluid systems. By the investigation of adsorption characteristics and surface activity of nanoparticles, the interaction mechanism of nanoparticles with corrosion-scale inhibitors, the inhibition mechanism of corrosion-scale inhibitors in water-based nano fluids and their effects on the anti-corrosion performance of metals will be revealed. The corrosion mechanism of metals and the inhibition mechanism of corrosion-scale inhibitors in water-based nanofluids will be achieved finally.

英文关键词： water-based nanofluid;corrosion of metal;corrosion mechanism;corrosion inhibition;inhibitor