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dc.coverage.spatialMicrostructural simulations and property evaluation of heat treated nickel free high nitrogen austenitic stainless steel
dc.date.accessioned2024-02-19T06:37:37Z-
dc.date.available2024-02-19T06:37:37Z-
dc.identifier.urihttp://hdl.handle.net/10603/545883-
dc.description.abstractNickel Free High Nitrogen Stainless Steels (NFHNSS) are a group of newlinehigh-strength and non-magnetic austenitic steels used in medical and newlinepetro-chemical industries. These steels exhibit high strength, toughness along newlinewith high resistance to corrosion. Though Ni addition enhances many desirable newlineproperties in stainless steels, it causes allergy in human and animal bodies. newlineTo counteract these effects, low nickel and nickel-free austenitic stainless steels newlinewere developed. Manganese and nitrogen are commonly used as substitutes for newlinenickel in austenitic stainless steels. Addition of these elements promotes the newlineformation of nitrides as well as intermetallic precipitates during various heat newlinetreatments. Size and morphology of these precipitates strongly influence the newlinemechanical properties and corrosion behavior of NFHNSS. Thermodynamic, newlinekinetic simulations and microstructural simulations are important approaches to newlinedesign of alloys along with its precipitates and metallurgical process parameters newlineto obtain better material properties. Phase Field Modelling (PFM) is a new newlineapproach to simulate microstructure evolution in various materials. Even though newlinea lot of work on bio compactable behavior of NFHNSS have been carried out, newlineresearch of CALPHAD aspects of precipitate formations, influence of aging and newlineprecipitate phases on mechanical properties and corrosion behavior of NFHNSS newlineare very limited. Microstructural simulation of nitride precipitation by PFM for newlineNFHNSS has not yet been reported. newlineThis research focusses on the microstructural evolution in NFHNSS by newlinePFM, particularly chromium nitride (Cr2N) precipitation as well as precipitation newlinekinetics under different aging conditions using the CALPHAD approach through newlineThermoCalc and TC-PRISMA software. Results of the simulation studies were newlineexperimentally validated. Effect of precipitate morphologies on the tensile newlineproperties, stain hardening behaviour, hardness, toughness and corrosion behaviour newlineof NFHNSS under different aging temperatures has also been inve
dc.format.extentxxiv,175p.
dc.languageEnglish
dc.relationp.159-174
dc.rightsuniversity
dc.titleMicrostructural simulations and property evaluation of heat treated nickel free high nitrogen austenitic stainless steel
dc.title.alternative
dc.creator.researcherKrishna Kumar, K
dc.subject.keywordEngineering
dc.subject.keywordEngineering and Technology
dc.subject.keywordEngineering Mechanical
dc.subject.keywordNickel Free High Nitrogen Stainless Steels
dc.subject.keywordnon-magnetic austenitic steels
dc.subject.keywordstainless steels
dc.description.note
dc.contributor.guideAnburaj, J
dc.publisher.placeChennai
dc.publisher.universityAnna University
dc.publisher.institutionFaculty of Mechanical Engineering
dc.date.registered
dc.date.completed2023
dc.date.awarded2023
dc.format.dimensions21cm.
dc.format.accompanyingmaterialNone
dc.source.universityUniversity
dc.type.degreePh.D.
Appears in Departments:Faculty of Mechanical Engineering

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01_title.pdfAttached File97.98 kBAdobe PDFView/Open
02_prelim pages.pdf1.14 MBAdobe PDFView/Open
03_content.pdf550.23 kBAdobe PDFView/Open
04_abstract.pdf12 kBAdobe PDFView/Open
05_chapter1.pdf137.39 kBAdobe PDFView/Open
06_chapter2.pdf502.88 kBAdobe PDFView/Open
07_chapter3.pdf26.62 kBAdobe PDFView/Open
08_chapter4.pdf469.97 kBAdobe PDFView/Open
09_chapter5.pdf8.91 MBAdobe PDFView/Open
10_chapter6.pdf36.79 kBAdobe PDFView/Open
11_chapter7.pdf11.69 kBAdobe PDFView/Open
12_annexures.pdf283.5 kBAdobe PDFView/Open
80_recommendation.pdf87.35 kBAdobe PDFView/Open


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