Corrosion in Fertiliser and Petroleum Industry: Proceedings of Short Course on "Corrosion in Fertiliser and Petroleum Industry" Organised by the Corrosion Advisory Bureau at Udyogamandal from 20th to 24th December 1968 |
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Page 15
Stress corrosion In this form of attack , the metal surface having internally or
externally imposed stress coming into contact with a corrosive environment ,
undergoes sudden failure in the form of cracks or breakage . This is explained as
due to ...
Stress corrosion In this form of attack , the metal surface having internally or
externally imposed stress coming into contact with a corrosive environment ,
undergoes sudden failure in the form of cracks or breakage . This is explained as
due to ...
Page 142
Table 4 Magnitude of current density required for cathodic protection of steel in
different environments Environment mA / M2 Neutral soil 4 – 15 Aerated soil 15 -
20 Acidic and water saturated soil 25 - 60 Moving sea water 3 - 15 Air - sat . water
...
Table 4 Magnitude of current density required for cathodic protection of steel in
different environments Environment mA / M2 Neutral soil 4 – 15 Aerated soil 15 -
20 Acidic and water saturated soil 25 - 60 Moving sea water 3 - 15 Air - sat . water
...
Page 149
The choice of the particular corrosion inhibitive pigments will be governed by the
environments and the paint film ... Finishing coats and undercoats should be
chosen for their low permeability to moisture and gases present in the
environment .
The choice of the particular corrosion inhibitive pigments will be governed by the
environments and the paint film ... Finishing coats and undercoats should be
chosen for their low permeability to moisture and gases present in the
environment .
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Contents
INTRODUCTION | 3 |
CHEMICAL CORROSION AND ITS PREVENTION | 13 |
DISCUSSION | 22 |
9 other sections not shown
Common terms and phrases
addition alloys aluminium ammonia ammonium amount anodic application attack bottom carbon steel cast iron cathodic protection cause chemical chloride chromium coatings concentration construction containing cooling corrosion problems corrosion rate cracking crude developed distillation effective environment epoxy equipment exchangers failure fertiliser flow give given handling heat hydrogen hydrogen sulphide increase industry inhibitor iron lead less material metal method mild steel Monel months natural observed occurred operating organic oxide oxygen paint petroleum phosphate pipe pitting plant plates potential practice presence pressure prevent pumps range reaction reduced refinery removal resistance rubber severe shell showing solution specially stainless steel steam storage tanks stress corrosion structure suitable sulphuric acid surface Table tanks temperature tests thickness tower treatment tubes unit various welding zinc