Boiler feed water pipe which has just been operated for 7 (seven) years experienced failure at the vicinity of inhibitor injector pipe. Fractography of failed surface shows that erosion and corosion has took place. To investigate the cause of the failure, some testing have been done, those are hardness, chemical composition, fractography or metallography, corrosion product, and polarization tests, and flow simulation. The test results of flow simulation show that the vicinity of onhibitor injector positioned at the depression flow which is cause coustic gouging happen as the effect of chemical reaction between inhibitor of natrium phosphate and water.
Keywords: Boiler feed water, inhibitor, depression flow, caustic corrosion.
Sukandar; UIKA Bogor
Keywords: Boiler feed water, inhibitor, depression flow, caustic corrosion.
Sukandar; UIKA Bogor
