ISSN: 1999-8716

Keywords : Corrosion


EFFECT OF HOT CORROSION ON BOILERS PIPES IN NORTH BAGHDAD ELECTRIC POWER PLANT STATION

Anees A. Khadom; Ahmed A. Fadhil; em A. Karim; Abdul Mun; Hongfang Liu

DIYALA JOURNAL OF ENGINEERING SCIENCES, 2015, Volume 8, Issue 4, Pages 776-784

The high temperature external corrosion of boiler pipes was evaluated using weight loss technique. Samples of low carbon steel were supplied from north of Baghdad thermal station and used in current study. Locally supplied fuel ash was used as corrosion environment. Corrosion rates were determined as a function of time in the absence and presence of fuel ash. The results showed that the corrosion of boiler steel pipes was higher in the presence of fuel ash. Scanning electron microscope was also used to study the morphology of surface.

APPLICATION OF TWO THEORETICAL MODELS TO CORROSION OF MILD STEEL AND COPPER – NICKEL ALLOY IN HYDROCHLORIC ACID

Anees A. Khadom

DIYALA JOURNAL OF ENGINEERING SCIENCES, 2010, Volume 3, Issue 0, Pages 406-413

ABSTRACT:- The aim of present work is to apply Barnartt`s three point method (TPM) and McLaughlin method on the corrosion rate data of mild steel and Cu-Ni alloy in hydrochloric acid. The data of our previous work of corrosion of mild steel and copper – nickel alloy in hydrochloric acid were taken in order to apply these methods. The parameters of these methods, such as, corrosion currents and Tafel slopes were estimated using Levenberg-Marquardt estimation method. Both methods can be used to represent the corrosion rate data with high correlation coefficient. The results were more accurate with McLaughlin equation.
Keywords:- Corrosion, three point method, hydrochloric acid, metal alloys.