شماره ركورد كنفرانس :
4664
عنوان مقاله :
Investigation and optimization of effective parameters on electropolish process of stainless steel used in cryogenic reservoirs
پديدآورندگان :
Ahmadi Mohsen shahnazar84@gmail.com a: Tavan-Power Resources Development Co. , Shahnazar Nezhad Khalesi Alireza shahnazar84@gmail.com a: Tavan-Power Resources Development Co. , Mobin Mohammad shahnazar84@gmail.com a: Tavan-Power Resources Development Co. , Alilou Hojat shahnazar84@gmail.com a: Tavan-Power Resources Development Co.
كليدواژه :
electropolish process , stainless steel , glossiness , roughness , cryogenic , copper electrolysis
عنوان كنفرانس :
چهاردهمين سمينار ملي سالانه الكتروشيمي ايران
چكيده فارسي :
The effect of electropolish process on the roughness and glossiness of stainless steel 316 used in cryogenic storage dewars is investigated here. A mixture of phosphoric and sulfuric acid (with 4:6, 5:5, and 6:4 volume ratios), 10% water, and 2% glycerin is prepared and subjected to electropolish process with electric current density of 0.05-0.3 A/cm2, temperature of 50-70 °C, and time of 2-30 minutes. Atomic force microscopy (AFM) is implemented for surface coating analysis. Results indicate that when the volume ratio of phosphoric and sulfuric acid is 4:6, the electric current density is 0.2 A/cm2, the temperature is 55 °C, and the time is 7 minutes, the electropolish process has the best outcome on the surface quality.
