As a result of such chicanery, the voter rolls in many American cities and counties â in such states as South Dakota, Texas, Mississippi, Kentucky, Indiana, West Virginia, Maryland, Iowa, North Carolina, and Missouri â soon included more names than there were residents of voting age in those locales.
From Wikipedia, the free encyclopedia. Microbial corrosion, also called bacterial corrosion, bio-corrosion, microbiologically influenced corrosion, or microbially induced corrosion (MIC), is corrosion caused or promoted by microorganisms, usually chemoautotrophs.It can apply to both metals and non-metallic materials.acterial corrosion may appear in form of pitting corrosion, for example in pipelines of the oil and gas industry. Anaerobic corrosion is evident as layers of metal sulfides and hydrogen sulfide smell.
The teamâs primary focus has been on stress corrosion cracking (SCC) in the steel exposed to the corrosive ammonia (Fig. 2). SCC requires both exposure to a corrosive environment (in this case, ammonia) and tensile stress in the steel.he latter part of the study will focus on pinhole leaks in nurse tanks, extended SCC cracking laboratory studies, the effects of stress relief annealing of tanks, use of additives in the ammonia, and the effect of purging tanks with nitrogen gas to prevent air from entering the tank in service.