Investigation on corrosion performance of multilayer Ni-P/TiO2 composite coating on steel

被引：8
|
作者：
Sahayaraj, M. Edwin [1 ]
Jappes, J. T. Winowlin [2 ]
Siva, I. [3 ]
Rajini, N. [3 ]
机构：
[1] Noorul Islam Ctr Higher Educ, Dept Automobile Engn, Kumaracoil 629180, Tamil Nadu, India
[2] Cape Inst Technol, Ctr Adv Mat, Dept Mech Engn, Azhagappapuram, Tamil Nadu, India
[3] Kalasalingam Univ, Dept Mech Engn, Ctr Composite Mat, Krishnankoil, Tamil Nadu, India
来源：
SCIENCE AND ENGINEERING OF COMPOSITE MATERIALS | 2016年 / 23卷 / 03期
关键词：
corrosion resistance; electroless nickel; heat treatment; multilayer coating; TiO2 composite coating; P COATINGS; NANOCOMPOSITE COATINGS; ELECTROLESS NI-P-AL2O3; RESISTANCE; MICROSTRUCTURE; ALUMINA; LASER; WEAR;
D O I：
10.1515/secm-2014-0134
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
Electroless nickel coating treatment improves the corrosion resistance of mild steel. This work aims at studying the corrosion behavior of electroless Ni-P/TiO2 composite and multilayer coatings applied to the mild steel substrate as their as-plated state and furnace annealed at various temperatures and compared both the coatings' corrosion performance. The corrosion behavior of the deposits was evaluated by potentiodynamic polarization studies in 3.5 wt% sodium chloride solution. The results showed that the corrosion resistance of the multilayer coating was two times higher compared to the composite coatings. Further, the corrosion mechanism was discussed in terms of microstructure, phase transformation, grain size, and microstrain.
引用
收藏
页码：309 / 314
页数：6
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