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|Title:||STUDIES ON HOT CORROSION BEHAVIOUR OF BOILER TUBE STEEL WELDMENTS|
METALLURGICAL AND MATERIALS ENGINEERING
|Abstract:||The entire work carried out for this investigation has been presented into eight . chapters. Chapter-1 contains the introductory remarks about hot corrosion problem in weldments faced by the various industries and especially in coal fired boilers. Chapter-2 begins with exhaustive survey of literature regarding various aspects and mechanisms of hot corrosion. Critical review of the existing studies and detailed behaviour of weldments to counteract the hot corrosion degradation have been made. After reviewing the available literature the problem has been formulated. Chapter-3 deals with the experimental procedure which includes the procedure to obtain the weldments, their characterisation, the hot corrosion studies and the analysis of final corrosion products in systematic way. Chapter-4 includes the findings and discussions of the study regarding the characterisation of weldments. Chapter-5 contains the data regarding the cyclic oxidation studies performed on weldments, its different regions and unwelded steels in air at 900°C. It also includes the critical discussion of results in view of the existing literature. Chapter-6 includes the findings regarding the behaviour of weldments, its different region and unwelded steels for cyclic hot corrosion in molten salt (Na2SO4-60%V205) at 900°C along with discussion of results. Chapter-7 includes the comprehensive discussions of the results with respect to the existing literature. Chapter-8 compiles the salient conclusions of the present study regarding the characterisation, oxidation, hot corrosion behaviour of weldments, its different regions and unwelded steels in all the two given environments.|
|Appears in Collections:||DOCTORAL THESES (MMD)|
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