Materials performance and failure evaluation in SWCC MSF plants

Malik, Arshi; Kutty, P.C. Mayan; Andijani, Ismail N.; Al-Fozan, Saleh A.

doi:10.1016/0011-9164(94)00085-9

Cited by 18 publications

(5 citation statements)

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“…The problem may appear in the form of pitting or crevices which act as initiators of stress corrosion in the form of stress corrosion cracking, corrosion fatigue or intergranular corrosion and result in the failure of components. However, this aspect has been given little attention and is least understood yet has great relevance to seawater desalination and power plants [1]. In seawater processing systems, if dissolved oxygen and pH are under control, general corrosion is the predominant mode of attack on conventional construction materials such as carbon steel.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Behavior of Mild Steel and SS 304L in Presence of Dissolved Copper

Mobin¹,

Shabnam²

2010

JMMCE

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The failure of steel components in multistage flash (MSF) desalination or power plants as a result of the deposition of carryover heavy metals/oxides is a common problem and reported by many authors. The present investigation was undertaken to study the corrosion behavior of mild steel and AISI 304L SS in presence of dissolved Cu ions under different experimental conditions. The experimental conditions include: variation in aqueous medium, Cu ion concentration, pH and flow condition. The corrosion rate of mild steel and SS 304L in presence of different concentration of Cu was determined by weight loss measurements and solvent analysis of iron ions into the test solution after completion of immersion. The amount of Cu ions present in the test solution after completion of immersion was also estimated using Atomic absorption spectrophotometer. The pH of the test solution was monitored during the entire period of immersion. Electrochemical techniques like free corrosion potential measurements and potentiodynamic polarization measurements were carried to find out the role of Cu ions on the corrosion behavior of mild steel and SS 304L. The effect of Cu on corrosion rate of mild steel is quite pronounced and follows interesting trend. However, SS 304L is not affected either in distilled water or artificial seawater and do not show any significant variation in corrosion rates in presence of Cu ions.

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Section: Introductionmentioning

confidence: 99%

Corrosion Behavior of Mild Steel and SS 304L in Presence of Dissolved Copper

Mobin¹,

Shabnam²

2010

JMMCE

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“…A seawater desalination plant offers numerous corrosion problems due to its process conditions, including factors such as temperature and pH, and operation in relatively aggressive environments consisting of seawater, seawater-air and salt-air aerosols, corrosive gases, slow moving or stagnant liquids, or deposit forming liquids [9]. Plain carbon steels, low-and high-alloy steels, martensitic, austenitic, and ferritic stainless steels are some of the materials that are generally used in desalination and power plants for fabrication of various components.…”

Section: Introductionmentioning

confidence: 99%

Studies on the effect of Zn ions on the corrosion behavior of iron-base alloys relevant to desalination and power plant conditions

Mobin

Shabnam

2013

Desalination and Water Treatment

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The corrosion behavior of mild steel and AISI 304L SS in the presence of dissolved Zn ions under different experimental conditions have been investigated. Experimental conditions include: variation in aqueous medium, Zn ions concentration, pH, dissolved oxygen, and flow condition. The variation in corrosion rate in the presence of varying concentrations of Zn ions was determined using weight loss technique and spectrophotometric analysis of iron ions entered into the test solutions after completion of immersion. The pH of the test solutions was also monitored during the entire period of immersion. The Zn ions present in the test solutions after completion of immersion were estimated using atomic absorption spectrophotometer (AAS). Open circuit potential (OCP) measurements and potentiodynamic polarization (PDP) measurements were carried out to find out the role of Zn ions on the corrosion behavior of mild steel and SS 304L. The surface morphology of steel before and after immersion in aqueous solution containing Zn ions was also examined using scanning electron microscope (SEM) and energy dispersive X-ray spectroscopy (EDS). The influence of Zn ions on the corrosion behavior of mild steel is quite pronounced and show interesting trends whereas SS 304L is unaffected both in distilled water or artificial seawater.

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“…Ti alloys, duplex SS and superaustenitic 6 % Mo steels which have high corrosion resistance and remarkable mechanical properties, are used in modern desalination plants (Malik , Mayan Kutty, Andijani, & Al-Fozan, 1994 ). Ti alloys, duplex SS and superaustenitic 6 % Mo steels which have high corrosion resistance and remarkable mechanical properties, are used in modern desalination plants (Malik , Mayan Kutty, Andijani, & Al-Fozan, 1994 ).…”

Section: Introductionmentioning

confidence: 99%

Corrosion and materials selection in MSF desalination plants

Malik¹,

Al-Fozan²

2011

Corrosion Reviews

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The chemically aggressive environment generated in some parts of equipment at multi-stage fl ash (MSF) desalination plants can cause corrosion problems. The proper selection of materials with higher resistance to corrosion is considered as one of the most prospective approaches for smooth and effi cient running of the plants. Because of this, the study of the corrosion behavior of selected materials is an important issue in the realm of desalination technology. This paper reviews the performance of materials used in different MSF desalination plants. The corrosion behavior of materials in different sections of plants, under surrounding environmental conditions, is discussed. Various types or forms of corrosion occurring in different units of plant are described and the strong role of local attack is emphasized. Case histories dealing with failure of components in different plants are cited. The criteria for the selection of materials, which depend upon the nature of environment and operating conditions, are exemplifi ed. The merits and demerits of materials currently employed are highlighted and introduction of new materials either in existing plants as the possible replacements or in future plants are discussed.

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Materials performance and failure evaluation in SWCC MSF plants

Cited by 18 publications

References 0 publications

Corrosion Behavior of Mild Steel and SS 304L in Presence of Dissolved Copper

Corrosion Behavior of Mild Steel and SS 304L in Presence of Dissolved Copper

Studies on the effect of Zn ions on the corrosion behavior of iron-base alloys relevant to desalination and power plant conditions

Corrosion and materials selection in MSF desalination plants

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