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Corrosion resistance of normalizing heat treatment of carbon steel ck45 in sea water at different velocities | ||
| Journal of Engineering and Sustainable Development | ||
| Article 1, Volume 17, Issue 4, 2013, Pages 144-151 | ||
| Author | ||
| Amjad Hussein Jasim | ||
| Abstract | ||
| The effect of, normalizing heat treatment on corrosion resistance of carbon steel DIN CK45 is investigated. Test specimens (1.5*1.5*0.3) Cm were manufactured according to ASTM G71-30 Heat treatments (Quenching, and normalizing were performed by heating the specimens in electrical furnace to 850 ◦ C and cooling in water for quenching and by air for normalizing microstructure were examined by optical microscope Corrosion tests were investigated by electrochemical potential state cell in prepared salt water (sea water) amulti velocities (1, 2, and 3) m/min where the test specimen represents the positive electrode (anode) pole. Tafle equation was adopted to calculate the corrosion rate. The obtained results show that the heat treatment improves the corrosion resistance by increasing the combination of iron with carbon reducing by that the combination of iron with oxygen which produces rust. Increasing velocity of the media (sea water) contributed in decreasing the corrosion rate because of reducing the assembling of ions on cathode pole Keyword: Heat treatment, Carbon Steel CK45, Corrosion Resistance. Velocity of sea water | ||
| Keywords | ||
| Heat treatment; Carbon Steel CK; corrosion resistance; Velocity of sea water | ||
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