Where does rust grow?

Answer 1

mulberry rust come from trees

Answer 2

Yes, while bacteria can accelerate or even cause rusting or corrosion, this is not necessarily the case (i.e. some rusting occurs due to entirely non-biological and environmental factors).

In presence of oxygen, aerobic bacteria like Thiobacillus thiooxidans, Thiobacillus thioparus, and Thiobacillus concretivorus, all three widely present in the environment, are the common corrosion-causing factors resulting in biogenic sulfide corrosion.

Without presence of oxygen, anaerobic bacteria, especially Desulfovibrio and Desulfotomaculum, are common. Desulfovibrio salixigens requires at least 2.5% concentration of sodium chloride, but D. vulgaris and D. desulfuricans can grow in both fresh and salt water. D. africanus is another common corrosion-causing microorganism.

For example:

* Some sulfate-reducing bacteria produce hydrogen sulfide, which can cause sulfide stress cracking. * Acidithiobacillusbacteria produce sulfuric acid and frequently damages sewer pipes. * Ferrobacillus ferrooxidans directly oxidizes iron to iron oxides and iron hydroxides: the rusticles forming on RMS Titanic wreck are caused by bacterial activity. Layers of anaerobic bacteria can exist in the inner parts of the corrosion deposits, while the outer parts are inhabited by aerobic bacteria. Some bacteria are able to utilize hydrogen formed during cathodic corrosion processes. As well, bacterial colonies and deposits can form concentration cells, causing and enhancing galvanic corrosion. Bacterial corrosion may appear like pitting corrosion. Anaerobic corrosion is evident as layers of metal sulfides and hydrogen sulfide smell. On cast iron, a graphitic corrosion selective leaching may be the result, with iron being consumed by the bacteria, leaving graphite matrix with low mechanical strength in place.

Answer 3

The thinner the metal the more quickly it will rust.Metal rusts quicker in humid and wet places and does not rust at all or rusts very slowly in ice cold dry tundra regions.

Answer 4

Man own even kno i gt dat same question bt hey i wit u the long way ya dig ~eric- l- ced~

Answer 5

Rust will become more prevalent with water and iron.