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SRB CORROSION OF PETROLEUM TUBULAR MATERIALS |
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西安空军工程大学工程学院理化教研室 |
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Abstract Studying the corrosion feature and corrosion produc t of test sample by way of soak test and with the aid of scanning electron micro scopy(SEM) and XRD,it is discovered that the corrosion feature of Desulfovibrioi desulfuricans(D.desulf) to petroleum tubular materials is pitting,and the corro sion product is Fe9S8.At the same time,studying the depolarization reaction of D.desulf.has both anode and cathode depolarization reaction.In the research o f growth feature of D.desulf.,it is discovered that the growth of D.desulf.exist s logarithm period,growing animated period,and decreasing period.
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Received: 10 March 2000
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