汪兴汉,张金龙,陈迪朋,姚美意,曾奇锋,李聪,周邦新.微弧氧化对ZIRLO合金耐腐蚀性能的影响[J].稀有金属材料与工程,2020,49(10):3484~3489.[Wang Xinghan,Zhang Jinlong,Chen Dipeng,Yao Meiyi,Zeng Qifeng,Li Cong,Zhou Bangxin.Effect of Micro-Arc Oxidation on Corrosion Resistance of ZIRLO Alloy[J].Rare Metal Materials and Engineering,2020,49(10):3484~3489.]
微弧氧化对ZIRLO合金耐腐蚀性能的影响
投稿时间:2019-10-10  修订日期:2020-01-06
中文关键词:  ZIRLO合金  微弧氧化  形貌  耐腐蚀性能
基金项目:
中文摘要:
      采用磷酸盐、硅酸盐电解液体系对ZIRLO合金进行微弧氧化处理。利用XRD、SEM、TEM等研究陶瓷层的相组成、表面形貌、截面组织。结果表明:在磷酸盐电解液体系、硅酸盐电解液体系中制备的陶瓷层主要由m-ZrO2组成,磷酸盐电解液体系制备的陶瓷层内表面较硅酸盐电解液体系制备的陶瓷层更致密。在硅酸盐电解液体系中微弧氧化的样品靠近陶瓷层/金属界面基体一侧存在少量β-Zr。采用静态高压釜腐蚀实验研究了ZIRLO合金及D(磷酸盐电解液体系微弧氧化)样品和E(硅酸盐电解液体系微弧氧化)样品在360 ℃/18.6 MPa去离子水中及360 ℃/18.6 MPa 0.01 M LiOH水溶液中的耐腐蚀性能。在360 ℃/18.6 MPa去离子水中腐蚀至250 d时,D和E样品耐腐蚀性能相接近,均优于未经微弧氧化处理的ZIRLO合金样品;在360 ℃/18.6 MPa 0.01 M LiOH水溶液中腐蚀至246 d时,D和E样品的耐腐蚀性能与未经微弧氧化处理的ZIRLO合金样品耐腐蚀性能接近甚至有有害的影响。随着腐蚀时间的延长,微弧氧化对ZIRLO合金耐腐蚀性能提升有限。
Effect of Micro-Arc Oxidation on Corrosion Resistance of ZIRLO Alloy
英文关键词:Zirconium alloy  micro-arc oxidation  morphology  corrosion resistance
英文摘要:
      Micro-arc oxidation (MAO) is a new technology for in-situ growth of oxide ceramic layers on valve metals( Ti, Al, Mg, Zr, Ta, etc) or their alloys. which improve the wear resistance and corrosion resistance of metals.The ZIRLO alloy was subjected to micro-arc oxidation treatment using a phosphate or silicate electrolyte system. XRD, SEM, TEM etc.were used to study the phase composition, surface morphology and cross-sectional structure of the ceramic layer. The results show that the ceramic layer prepared in the phosphate electrolyte system and the silicate electrolyte system is mainly composed of m-ZrO2. The inner surface of the ceramic layer prepared by the phosphate electrolyte system is denser than the ceramic layer prepared by the silicate electrolyte system. A small amount of β-Zr is present on the side of the substrate near the O/M interface in E sample (Micro-arc oxidation of silicate electrolyte system). ZIRLO alloy and D sample (Micro-arc oxidation of phosphorus electrolyte system) and E sample (Micro-arc oxidation of silicate electrolyte system) was studied in static autoclave at 360 °C / 18.6 MPa deionized water and 360 °C / 18.6 MPa 0.01 M LiOH aqueous solution. The corrosion weight double logarithmic curve results show that when samples corroded to 360 d in 360 °C / 18.6 MPa deionized water, the corrosion resistance of D and E samples is similar, which is better than the ZIRLO alloy sample without micro-arc oxidation; When samples corroded to 246 d in 360 °C / 18.6 MPa 0.01 M LiOH aqueous solution , the corrosion resistance of D and E samples are close to that of ZIRLO alloy samples without micro-arc oxidation treatment or even which have harmful influence on ZIRLO alloy. With the extension of corrosion time, micro-arc oxidation has limited improvement on corrosion resistance of ZIRLO alloy.
作者单位E-mail
汪兴汉 上海大学材料研究所 747805935@qq.com 
张金龙 上海大学材料研究所 jlzhang@shu.edu.cn 
陈迪朋 上海大学材料研究所 747805935@qq.com 
姚美意 上海大学材料研究所 yaomeiyi@shu.edu.cn 
曾奇锋 上海核工程研究设计院有限公司  
李聪 上海核工程研究设计院有限公司  
周邦新 上海大学材料所  
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