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Outline

Preface

Corrosion may occurCause of corrosion

Area to corroted

Prevention

Conclusion

References

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Preface

This railway unit was in very poor condition with a big corrosion problem, why??

Railway work out in many environment and climate

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Corrosion may occur

Uniformcorrosion

Crevicecorrosion

Galvaniccorrosion4

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Window Hopper

Source: the international railway preservation society

vestibule

Source: the international railway preservation society

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RoofSource: the international railway preservation society

End vestibuleSource: the international railway preservation society

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Causes of corrosion in railway wagon

Water seepage through the flooring to the top of trough floor

Design allow the rain water flow through the panel and drainout at the bottom

Leakage of water through lavatory flooring.

Blockage of drain water by accumulated dust on top oftrough floor

Dissimilar metals joint

Design allow space7

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Areas Subject To Corrosion In Wagon

Side wall bottom : area below lavatory and between body sidepillars

Body pillars : bottom portion of pillar near doorways andlavatory area

Body side door : bottom of door due to accumulation of dust

Roof : ventilator and area around it

Joint between frame (carbon steel) and roof (stainlees steel)

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Prevention

1. Use of HSLA : CORTEN STEEL

3. Surface preparation and painting (organic coating)

4. Use simillar metals which are welded or joined togather

2. Use of corrosion resistant material like stainless steel

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Corrosion Resistance is corten steel standard of Indian

railways specifically formed for wagon body , due to it

high resistance to corrosion

Corten steel (often referred to as CorTen) is a weather

resistant steel which could more accurately be termed as an

"Atmospheric Corrosion Resistant Steel

CORTEN STEEL

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Conclusion

Corrosion my occur in the corrosive atmospheric

Corrosion can be mitigated by :

avoiding usage of dissimilar metals,

use simple design

good coating and the preparation or cleaning, and

choose a material with good resistant to the corrosion

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References

www.mastell.co.uk/corten-weather-resistant-steel.htm

Sivakumar, Durgacharan. CORROSION PREVENTION IN RAILWAY

COACHES, TRI-Service Corrosion Conference, 2007www.irps-wl.org.uk/3916.shtml

Triyono; Diharjo K.; Ilman Nur & Soekrisno. Fakultas Teknik UNS,Penelitian, Dikti, RUT, 2005.

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http://www.mastell.co.uk/corten-weather-resistant-steel.htmhttp://www.irps-wl.org.uk/3916.shtmlhttp://www.irps-wl.org.uk/3916.shtmlhttp://www.irps-wl.org.uk/3916.shtmlhttp://www.irps-wl.org.uk/3916.shtmlhttp://www.mastell.co.uk/corten-weather-resistant-steel.htmhttp://www.mastell.co.uk/corten-weather-resistant-steel.htmhttp://www.mastell.co.uk/corten-weather-resistant-steel.htmhttp://www.mastell.co.uk/corten-weather-resistant-steel.htmhttp://www.mastell.co.uk/corten-weather-resistant-steel.htmhttp://www.mastell.co.uk/corten-weather-resistant-steel.htmhttp://www.mastell.co.uk/corten-weather-resistant-steel.htm

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Thank you for your attention

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