02018nas|a2200265 i 450000500170000000800410001703500150005810000250007324500900009826000520018830000100024049000280025050001390027850200580041752008710047565000210134665000270136770000350139470000490142970000510147870000500152971000480157981000600162785600650168720260817162853.0030620s2002    th  u m rtt  00|  a1eng d  a.b118884900 aThammaratt Pechakrue10aApplication of electrochemical polishing in corrosion prevention of ST3161 gamma nail  aBangkok :bAsian Institute of Technology,c2002  a69 p.1 aThesis ;vno. ISE-02-31  aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Advanced Technologies  aThesis (M.Eng.) - Asian Institute of Technology, 2002  aThis research determines the optimum method and conditions for improving the surface quality of the Gamma nail to prevent the conosion by using the electrochemical polishing process. In the electrochemical polishing process, there are three parameters, (1) Electrical Voltage (2) Electrolyte Temperature and (3) Time. This process creates a passive film on the stainless steel surface to prevent the corrosion. This study starts with design of the experiment, prepare the samples, run the electrochemical polishing in difference conditions and test the corrosion of the samples and compare with the mechanical polishing. The result shows that the passive film of the mechanical polishing sample is weaker than the passive film of the electrochemical polished samples. The result shows that electrochemical polishing is needed for increasing the corrosion protection.10aSteelxCorrosion10aElectrolytic corrosion1 aBohez, Erik L.J.,eChairperson1 aUllah, A.M.M. Sharif,eExamination Committee0 aAnulark Techanitisawad,eExamination committee0 aJintamai Suwanprateeb,eExamination committee2 aAIT Partial Scholarship,eScholarship donor2 aAsian Institute of Technology.tThesis ;vno. ISE-02-31  3Full-Textuhttp://203.159.5.9/ait-thesis/detail.php?q=B08125