Effects of Surface Treatments on Stainless Steel 316 Exposed to Potable Water Containing Silver Disinfectant

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dc.creatorLi, Wenyan
dc.creatorBuhrow, Jerry
dc.creatorDiaz, Angie
dc.creatorIrwin, Tesia
dc.creatorCalle, Luz
dc.creatorCallahan, Michael
dc.date.accessioned2019-06-20T18:08:40Z
dc.date.available2019-06-20T18:08:40Z
dc.date.issued2019-07-07
dc.descriptionWenyan Li, URS Federal Services, Inc., USA
dc.descriptionJerry Buhrow, National Aeronautics and Space Administration (NASA), USA
dc.descriptionAngie DIaz, URS Federal Services, Inc., USA
dc.descriptionTesia Irwin, The Bionetics Corporation, USA
dc.descriptionLuz Calle, National Aeronautics and Space Administration (NASA), USA
dc.descriptionMichael Callahan, National Aeronautics and Space Administration (NASA), USA
dc.descriptionICES303: Physio-Chemical Life Support - Water Recovery & Management Systems - Technology and Process Development
dc.descriptionThe 49th International Conference on Environmental Systems was held in Boston, Massachusetts, USA on 07 July 2019 through 11 July 2019.
dc.description.abstractSilver has been selected as the forward disinfectant candidate for potable water systems in future space exploration. To develop a reliable antibacterial system that requires minimal maintenance, it is necessary to address relevant challenges to preclude issues for future missions. One such challenge is silver depletion in potable water systems. When in contact with various materials, silver ions can be easily reduced to its metallic state or form insoluble compounds. The same chemical properties that make silver a powerful antimicrobial agent also result in its quick inactivation or depletion in various environments. Different metal surface treatments, such as thermal oxidation and electropolishing, have been investigated for their effectiveness in reducing the depletion of silver disinfectant from potable water. However, their effects on the metal surface microstructure and chemical resistance have not often been included in the studies. This paper reports the effect of surface treatments on SS316 exposed to potable water containing silver ion disinfectants. Early experimental results showed that thermal oxidation, when compared to electropolishing, resulted in a thicker oxide layer and a compromised corrosion resistance of the SS316.
dc.format.mimetypeapplication/pdf
dc.identifier.otherICES_2019_273
dc.identifier.urihttps://hdl.handle.net/2346/84482
dc.language.isoeng
dc.publisher49th International Conference on Environmental Systems
dc.subjectSilver
dc.subjectDisinfectant
dc.subjectPotable water
dc.subjectSurface treatment
dc.subjectSS316
dc.subjectCorrosion
dc.subjectOxide
dc.titleEffects of Surface Treatments on Stainless Steel 316 Exposed to Potable Water Containing Silver Disinfectanten_US

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