Elaboration of Technological Measures on Increase of Corrosion Resistance of Ferritic-Austenic Steel Pipes  Full text

V. S. Vahrusheva¹, Т. А. Dergach¹, S. А. Panchenko², А. А. Tereshchenko²

 ¹State  Enterprise  "Ya. Yu.Osada Scientific Research Tube Institute"
1a Pisarzhevskiy St., Dnipropetrovsk 49600, Ukraine
² JSC “Centravis Production Ukraine”
56 Trubnikov Avenue, Nikopol, Dnipropetrovsk Region 53201, Ukraine

UDC 621.039:620.186.8]:699.14.018.8

Metall. Min. Ind.,  2010, Vol. 2, No. 5, pp. 363-369

Abstract

Effect of technology factors in pipe & tube production on pitting corrosion and stress-corrosion cracking resistance of pipes made of widespread corrosion-resistant ferritic-austenitic (duplex) steel is investigated. New regimes of heat treatment and other technological measures enhancing corrosion resistance, operate reliability and competitiveness of pipes are developed.

Keywords: CORROSION-RESISTANT FERRITIC-AUSTENITIC STEEL PIPES, HOT AND COLD DEFORMATION, HEAT TREATMENT, STRUCTURE, PITTING CORROSION, STRESS-CORROSION CRACKING, METHODS OF CORROSION TESTS