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# NIST Finds that Ethanol-Loving Bacteria Accelerate Cracking of Pipeline Steels

Micrograph of crack in X52 steel after the sample was subjected to mechanical forces for several days in an ethanol solution containing acid-producing bacteria, "Acetobacter aceti>. Researchers at NIST's biofuels testing facility found that the bacteria increased fatigue crack growth rates at least 25-fold compared to what would occur in air.

*ethanol,biofuel,pipeline,corrosion,public safety

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August 2, 2011

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