02641oam 2200469I 450 991070579890332120190905114223.0(CKB)5470000002452413(OCoLC)713319089(EXLCZ)99547000000245241320110214d2010 ka 0engurcn|||||||||txtrdacontentcrdamediacrrdacarrierCorrosion immersion testing of 13-mm-diameter grade-10.9 bolts for bolt-on armor /Tom Considine, Tom Braswell ; prepared by Oak Ridge Institute for Science and Education and VersarAberdeen Proving Ground, MD :Army Research Laboratory,2010.1 online resource (vi, 15 pages) illustrations (most color)"ARL-CR-654.""July 2010."This experiment examined the performance of selected coatings and pretreatments on 13-mm grade-10.9 bolts immersed in a 5% NaCl solution in an attempt to evaluate the corrosion prevention properties of each selected coating and pretreatment relevant to those selected for bolt-on armor. Five candidate finishes as well as zinc plating in accordance with ASTM B 633 with hexavalent chromium conversion coating as control were tested. Each bath was heated to 75 deg. F, and the salt solution was agitated in order to prevent stagnation and ensure equal heating. Testing was completed over 500 h, with visual inspections and open circuit potential measurements at 1, 2, 4, 8, and 24 h, and once every 24 h following. In this experiment, corrosion creep was defined visually as frosting for the onset of corrosion and red rust in the percentage of the fastener affected, each yielding separate observations.Corrosion immersion testing of 13 millimeter diameter grade-10.9 bolts for bolt-on armorCorrosion resistant materialsUnited StatesCorrosion and anti-corrosivesUnited StatesArmored vehicles, MilitaryCorrosionUnited StatesCorrosion resistant materialsCorrosion and anti-corrosivesArmored vehicles, MilitaryCorrosionConsidine Tom A.Braswell TomOak Ridge Institute for Science and Education.Versar, Inc.U.S. Army Research Laboratory,DTICEDTICEOCLCQGPOBOOK9910705798903321Corrosion immersion testing of 13-mm-diameter grade-10.9 bolts for bolt-on armor3311146UNINA