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chelant corrosion

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Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001321
EISBN: 978-1-62708-215-0
... by the fact that the water extract of the magnetite deposit was found to be slightly alkaline. The morphology of the corrosion damage in the present case is apparent from Fig. 2 , 3 , 4 , 5 , 6 . The features may be considered typical of alkaline corrosion or chelant attack. However, since...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001316
EISBN: 978-1-62708-215-0
... that the separators had deteriorated because of erosion corrosion. Further analysis of the boiler operation revealed that operational changes made in the last year of service caused an increase in velocity of the water/steam mixture. It was recommended that the operating parameters for the boiler be reevaluated...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001816
EISBN: 978-1-62708-180-1
... to determine the cause and suggest corrective action. The causes of failures include tube rupture, corrosion or scaling, fatigue, erosion, and stress-corrosion cracking. The article also describes the procedures for conducting a failure analysis. boilers corrosion embrittlement erosion failure...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006825
EISBN: 978-1-62708-329-4
... is higher than in subcritical units. Because of this, the furnace tubes act more as superheaters than as water-walls. This necessitates the use of a higher grade of materials, such as the high-alloy steels, in the furnace. In turn, materials having higher creep strength and greater oxidation and corrosion...