镍铝青铜(NAB)的微观组织及腐蚀性能
Microstructure and Corrosion Properties of Nickel Aluminum Bronze (NAB)
摘 要
以目前国内外常用的船用镍铝青铜试样（国产支架S1、进口舵叶S2、进口螺旋桨S3）为研究对象，通过OM、SEM、失重法和电化学工作站等研究其微观组织、第二相组成和耐蚀性，结果表明：S1、S2和S3的微观组织主要由α、κ（κⅡ、κⅢ、κⅣ）相组成，其中κⅡ、κⅢ为富Ni相。在3.5% NaCl溶液中，S1试样的腐蚀速率最高，S3的腐蚀速率最低。界面电荷转移电阻是影响腐蚀过程的主要因素，S3的界面电荷转移电阻最大（3 098 Ω），且其表面腐蚀产物主要由Al2O3，Cu2Cl （OH）2和（CuNi）2Cl （OH）3组成。
微观组织
腐蚀性能
nickel aluminum bronze
microstructure
corrosion properties
Abstract
Taking the commonly used marine nickel-aluminum-bronze materials at home and abroad (domestic bracket S1, imported rudder blade S2, imported propeller S3) as the research object,and the microstructure, second phase composition and corrosion resistance of these samples were studied by OM, SEM, weight loss method and electrochemical workstation. The results showed that the microstructures of S1, S2 and S3 were mainly composed of α and κ (κⅡ, κⅢ, κⅣ) phases, among which κⅡ and κⅢ were Ni-rich phases. In 3.5%NaCl solution, the corrosion rate of S1 sample was the highest, and the corrosion rate of S3 was the lowest. The interface charge transfer resistance was the main factor affecting the corrosion process. The interface charge transfer resistance of S3 were the largest (3 098 Ω), and its surface corrosion products were mainly composed of Al2O3, Cu2Cl(OH)2 and (CuNi)2Cl(OH)3.
中图分类号 TG172.9 DOI 10.11973/fsyfh-202210013
所属栏目 试验研究
基金项目 广东省科学院实施创新驱动发展能力建设专项（2018GDASCX-0117）；广东省科技创新战略专项（2018dr005）
收稿日期 2020/11/16
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联系人作者冯晓伟(fxwcsu@163.com)
引用该论文: FENG Xiaowei,ZHENG Zhibin,FENG Bo,WANG Haiyan,ZHANG Shuhong. Microstructure and Corrosion Properties of Nickel Aluminum Bronze (NAB)[J]. Corrosion & Protection, 2022, 43(10): 84
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参考文献
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【3】ZHAO B J, LV Y T, DING Y, et al.The grain refinement mechanisms of various phases in shot-peened Nickel-Aluminum bronze (NAB) alloy[J].Materials Characterization, 2018, 144:77-85.
【4】于宏, 郑玉贵, 姚治铭, 等. ZQAl9-4-4-2镍铝青铜在2.4%NaCl溶液中的空蚀行为[J].腐蚀科学与防护技术, 2007, 19(3):181-185.
【5】康全飞, 胡树兵, 曾思琪, 等.船用螺旋桨材料镍铝青铜的热处理强化[J].中国有色金属学报, 2018, 28(1):107-115.
【6】程鹏, 黄先球, 张万灵, 等.海洋环境下的金属材料腐蚀研究进展[J].武钢技术, 2014, 52(5):59-62.
【7】季卫星, 孙晓峰, 李占明, 等.镍铝青铜表面腐蚀损伤精密脉冲等离子粉末堆焊修复可行性研究[J].热加工工艺, 2018, 47(23):218-221, 226.
【8】DING Y, ZHAO R, QIN Z B, et al.Evolution of the corrosion product film on nickel-aluminum bronze and its corrosion behavior in 3.5 wt% NaCl solution[J].Materials (Basel, Switzerland), 2019, 12(2):209.
【9】孙晓峰, 陈正涵, 李占明, 等.镍铝青铜合金及其冷喷涂涂层磨蚀行为[J].稀有金属材料与工程, 2018, 47(11):3493-3498.
【10】YANG F F, KANG H J, GUO E Y, et al.The role of nickel in mechanical performance and corrosion behaviour of nickel-aluminium bronze in 3.5 wt.% NaCl solution[J].Corrosion Science, 2018, 139:333-345.
【11】BASUMATARY J, WOOD R J K.Different methods of measuring synergy between cavitation erosion and corrosion for nickel aluminium bronze in 3.5%NaCl solution[J].Tribology International, 2020, 147:104843.
【12】DING Y, LV Y T, CHEN K, et al.Effects of microstructure on the stress corrosion cracking behavior of nickel-aluminum bronze alloy in 3.5%NaCl solution[J].Materials Science and Engineering:A, 2018, 733:361-373.
【13】LUO Q, QIN Z B, WU Z, et al.The corrosion behavior of Ni-Cu gradient layer on the nickel aluminum-bronze (NAB) alloy[J].Corrosion Science, 2018, 138:8-19.
【14】NAIR S, SELLAMUTHU R, SARAVANAN R.Effect of Nickel content on hardness and wear rate of surface modified cast aluminum bronze alloy[J].Materials Today:Proceedings, 2018, 5(2):6617-6625.
【15】NI D R, XIAO B L, MA Z Y, et al.Corrosion properties of friction-stir processed cast NiAl bronze[J].Corrosion Science, 2010, 52(5):1610-1617.
【16】QIN Z B, ZHANG Q, LUO Q, et al.Microstructure design to improve the corrosion and cavitation corrosion resistance of a nickel-aluminum bronze[J].Corrosion Science, 2018, 139:255-266.
【17】SONG Q N, ZHENG Y G, NI D R, et al.Studies of the nobility of phases using scanning Kelvin probe microscopy and its relationship to corrosion behaviour of Ni-Al bronze in chloride media[J].Corrosion Science, 2015, 92:95-103.
【18】WHARTON J A, STOKES K R.The influence of nickel-aluminium bronze microstructure and crevice solution on the initiation of crevice corrosion[J].Electrochimica Acta, 2008, 53(5):2463-2473.
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