Effect of Weld and Surface Defects on the Corrosion Behavior of Nickel Aluminum Bronze in 3.5% NaCl Solution

Effect of Weld and Surface Defects on the Corrosion Behavior of Nickel Aluminum Bronze in 3.5% NaCl Solution

To study the effect of weld and defects on the corrosion behavior of nickel aluminum bronze (UNS C95810) in 3.5% NaCl solution, the weight loss, X-ray diffraction, optical microscope, scanning electron microscope and electrochemical test of the specimen with weld and defects were investigated. The r...

Full description

Bibliographic Details
Main Authors: Xu Zhao, Yuhong Qi, Jintao Wang, Tianxiang Peng, Zhanping Zhang, Kejiao Li
Format: Article
Language:English
Published: MDPI AG 2020-09-01
Series:Metals
Subjects:
nickel aluminum bronze
weld
defect
electrochemical corrosion
microstructure
Online Access:https://www.mdpi.com/2075-4701/10/9/1227
Description
Summary:To study the effect of weld and defects on the corrosion behavior of nickel aluminum bronze (UNS C95810) in 3.5% NaCl solution, the weight loss, X-ray diffraction, optical microscope, scanning electron microscope and electrochemical test of the specimen with weld and defects were investigated. The results show that the presence of weld and defects increases the corrosion rate of bronze. Weld does not change the structure of the corrosion product film, but defects induce a lack of the protective outermost corrosion product in bronze. Weld makes the corrosion product film in the early stage more porous. Defects always produce an increase in the dissolution rate of the bronze.
ISSN:2075-4701

Similar Items