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Effect of water-polyethelyne glycol mixtures on microstructure,hardness and corrosion of steel 1045
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نویسنده
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abdel-karim r. ,abdel-moemen s. ,nabel m.
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منبع
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journal of engineering and applied science - 2012 - دوره : 59 - شماره : 4 - صفحه:357 -376
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چکیده
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The effect of concentration and temperature of water soluble polyethelyne- glycol peg quenching media,on the microstructure,hardness as well as the corrosion performance of medium carbon ms steel 1045 were studied. the . inhibition action of pegs enhances with increasing their concentrations and decreases with the increase in temperature. using water + peg mixture with concentration 15% provides the highest hardness values and best corrosion resistance. thermodynamic studies confirmed that peg adsorption followed the langmuir adsorption isotherms. thermodynamic parameters,such as enthalpy ah0**
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کلیدواژه
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entropy AS0 and apparent activation energy E°t values were calculated and discussed.
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آدرس
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dept. of metallurgy,faculty of engineering,cairo university, Egypt, tabbin institute for metallurgical studies, Egypt, dept. of metallurgy,faculty of engineering,cairo university, Egypt
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Authors
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