Corrosion Resistance of 304L SS Spray Coated with Zirconia Nanoparticles

International Conference on Advances in Materials and Manufacturing Applications 2016

Maheswari, A. Uma^1 ; Sivakumar, M.^1 ; Indhumathi, N.^1 ; Mohan, Sreedevi R.^1

Department of Sciences Amrita School of Engineering, Coimbatore Amrita Vishwa Vidyapeetham, Amrita University, 641 112, India^1

关键词: Corrosion and wear resistance;    Film fabrication;    Indentation load;    Nano-indentation methods;    Nano-structured;    Spray coating;    Substrate temperature;    Zirconia nanoparticles;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/149/1/012068/pdf
DOI  :  10.1088/1757-899X/149/1/012068

来源: IOP

【 摘 要 】

Influence of substrate temperature on corrosion (in 3.5% NaCl) and wear resistance of nanostructured zirconia thin film coated 304L SS substrates are studied by electrochemical and nano-indentation methods. This analysis shows 304L SS substrate spray coated with nanostructured zirconia at substrate temperature closer to the boiling point of the spray solvent ethanol exhibited good corrosion and wear resistance behaviour. This is because of the compressive stress developed during film fabrication at lower substrate temperature (∼50 °C) and hence constrains the indentation plasticity, which leads to higher indentation load than the bare 304L SS.