Effect of Surface Strengthening on Corrosion Property of Ti-6Al-4V in 3.5% NaCl

摘要：

　　By means of Ultrasonic shot peening (USSP),a strengthening surface layer was formed on Ti-6Al-4V.The polarization curves with different treatment times were investigated in 3.5% NaCl.The type of semiconductor for passive film of 30 min treatment was measured by Mott-Schottky curve,and the thickness of the passive film was calculated.The result of the polarization curves show that the corrosion resistance of the USSP treatment samples is increased compared with the untreated sample.Mott-Schottky curve of with 30 min USSP treatment sample show that the passive film belongs to n-type semiconductor.The thickness of the passive film is much thicker than the untreated sample,and the charge carrier density is smaller than that of untreated sample.These indicate that the surface strengthening improves the corrosion resistance of the Ti-6Al-4V in 3.5% NaCl by forming stable passive film.

关键词： surface strengthening corrosion property passive film

作者: Conghui Zhang Wei Song Yaomian Wang Guizhi Xiao

作者单位: Xian University of Architecture and Technology,Yanta Road,No.13,Xian,710055,China

会议类型: 国际会议

会议名称: 2016 International Symposium on Structural Integrity，ISSI—2016(2016国际结构完整性研讨会)

会议地点: 天津

会议语种:英文

页码: 473-477

在线出版日期: 2016-05-26（万方平台首次上网日期，不代表论文的发表时间）