Corrosion behavior aspects of Ni-base self-fluxing coatings

7th International Conference on Advanced Concepts in Mechanical Engineering

Paulin, C.^1 ; Chicet, D.L.^1 ; Istrate, B.^1 ; Panuru, M.^1 ; Munteanu, C.^1

Mechanical Engineering, Mechatronics and Robotics Department, Gheorghe Asachi Technical University of Iasi, Iasi, Romania^1

关键词: Corrosion behavior;    Corrosion initiation;    Ni-based self-fluxing alloys;    Spray method;    Thermal spray deposition;    Unmelted particles;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/147/1/012034/pdf
DOI  :  10.1088/1757-899X/147/1/012034

来源: IOP

【 摘 要 】

Due to the development of thermal spray deposition technologies, thus obtained layers have more applications and fields of use. One of the coatings with increased application is the one produced from Ni-based self-fluxing alloys, which besides the good wear resistance, shows a satisfactory corrosion resistance. In this study it was observed the behavior of three types of coatings produced by Flame Spray method, both at wear and especially corrosion in the environment simulating acid rain. As a result of the experiments it was found that these layers became compact enough after applying the self-fluxing heat treatment, so in their structure are not present defects such as pores and micro-cracks, unmelted particles etc., which could be points of corrosion initiation.