Corrosion Resistance of Power Plant Components Exploited for Long Terms at 600, 650, and 800°C

Gogola, Peter; Kuníková, T.; Dománková, Mária; Ševc, Peter; Tuleja, S.; Čaplovič, Ľubomír; Vach, Matej; Janovec, Jozef

doi:10.5006/1.3319140

Cited by 2 publications

(1 citation statement)

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“…[1][2][3][4][5][6][7][8][9][10][11][12] Later on, several groups adapted this technique to other materials and extended its scope of identification. [13][14][15][16][17][18][19][20][21][22][23][24][25][26] The use of the DL-EPR technique has been proposed for duplex stainless steels (DSS) to detect several phases, such as sigma, chi, and others. However, the complexity of this class of stainless steel can be easily seen in the complete lack of consensus on the proper parameters for the operation of the DL-EPR tests, such as electrolyte composition and scan rate.…”

Section: Introductionmentioning

confidence: 99%

Magnetic and Electrochemical Techniques as Tools to Detect Deleterious Phases in Duplex Stainless Steels

Leal¹,

Assis²,

Mattos³

et al. 2015

Corrosion

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The development of techniques to detect deleterious phases in duplex and super duplex stainless steel has a great technicalscientific appeal. However, establishing a quality control of these steels using a unique technique of inspection requires an attentive analysis about its limits and sensibility of detections. Thus, the current work compares magnetic techniques based on eddy current methods and electrochemical potentiokinetic reactivation with double loop to detect deleterious phases in duplex stainless steel. The limitations and advantages of each technique are discussed mainly concerning the viability to detect sigma phase and chromium nitride. KEY WORDS: cyclic voltammetry, duplex stainless steel, sigma phase ISSN 0010-9312 (print), 1938-159X (online) 15/000141/$5.00+$0.50/0 © 2015, NACE International

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