CORROSIN BEHAVIOUR OF LOW CARBON STEEL SHEETS FOR CAR BODIES
Keywords:
Corrosion, car body coatingsAbstract
This paper is a study on the corrosion behaviour and performance between coated and
uncoated steel sheets which are used in car body manufacturing. The samples used are
coated and uncoated steel plates taken from 3 different car models. ASTM B I I 7-90 Salt
Spray (Fog) and ASTM D 2933-74 Corrosion Resistance of Coated Steel Specimens (Cyclic
Method) corrosion test are carried out in order to study the corrosion behaviour and
performance. The corrosion behaviour was determined by analyzing the surface and cross
section of the samples by using scanning electron microscope whereas the corrosion
performance was determined by mass loss method and visual examination . From the
analysis it was found that for all three models the uncoated samples were attacked by
uniform corrosion. Model I showed the best corrosion performance; followed by Model 2
and Model 3. The coating system for all three were able to protect the steel substrate from
corrosive environment. However. blisters have formed on the surface of coated specimen of
Model 3 after salt spray (fog) test which was due to the initial micro scratches on the
coating.
References
Hugh, M., (1988) , Corrosion Prediction and Prevention in Motor Vehicles ;Ellis Horwood Limited.
Pawlowski,1. , 1961, Vehicle Body Engineering; Business Books Limited.
ASTM Standard, Standard Test Method of Salt Spray (Fog) Testing; Designation ASTM B 117·90 .
ASTM Standard, Standard Test Method for Corrosion Resistance of Coated Steel Specimens (Cyclic Method); Designation ASTM D 2933·74.
ASTM Standard, 'Standard Practice for Preparing, Cleaning and Evaluating Corrosion Test Specimens; Designation ASTM G 1-90.
ASTM Standard, Standard Test Method fo r Evaluating Degree of Rusting on Painted Steel Surfaces; Designation ASTM 0 610-85.
Bayliss, D.A. and' Chandler, K.A., ( 1991), Steel Work Corrosion Control;
Elsevier Applied Science.
Shrcir, L.L, Jarman, R.A., Burstein, G.T., (1994), Corrosion Volume 1 (Metal/Environment Reactions). 3rd edition; Butterworth Heinemann.
Shreir, L.L, Jarman, R.A., Burstein, G.T., (1994), Corrosion Volume 2 (Corrosion Control), 3rd edition; Butterworth Heinemann.
Kanniah, M., 2003, Corrosion Study on Steel Sheets for Car Bodies. B.Eng. (Mech.-Materials) Thesis, Universiti Teknologi Malaysia.
Downloads
Published
How to Cite
Issue
Section
License
Copyright of articles that appear in Jurnal Mekanikal belongs exclusively to Penerbit Universiti Teknologi Malaysia (Penerbit UTM Press). This copyright covers the rights to reproduce the article, including reprints, electronic reproductions or any other reproductions of similar nature.
