Some Creep-Rupture Data Analytics as Applied to AISI 310S Superalloy Austenitic Stainless Steel Sheets at Elevated Temperatures and High Applied Stresses

Authors

  • A Kanni Raj Vel Tech University - Chennai

Keywords:

Creep-Rupture, AISI 310S Stainless Steel, activation energy, high temperature climb, wedge and triple-point cracking

Abstract

Creep-rupture of AISI 301S stainless steel is analyzed at 973-1073K and 40-150MPa. Various creep curves and creep rate curves are compared to understand the effect of temperature and applied load. Creep deformation and creep fracture mechanisms are manipulated from concerned mechanism maps. Creep deformation follows high temperature climb. Creep activation energy so obtained is 345KJ/mol. It is larger than activation energy for self-diffusion in pure FCC iron (that is 270-311kJ/mol). So, it indicates involvement of alloying elements in dislocation network recovery grain coarsening during deformation. Optical micrographs show wedge cracks and triple-point cracks are fracture mechanisms.

Author Biography

  • A Kanni Raj, Vel Tech University - Chennai
    Prof.Dr.A.Kanni Raj is Nationalist of India (Poet Mahakavi Bharathi's Agni Kunjondru Kanden / Tamil Indian Patriot VOC visited our HOME and met my grant father Landlord.O.Ramiah Pillai) and Pro-Tamil (studied Tamil upto B.Sc. / > 5000years old - lingua classica virgin tamizh). Author's education includes NIT-Trichy (MME Dept), IIT-Madras (MME Dept), IIT-Delhi (Passed GATE with 98.06percentile score) & IIT-Kanpur (excelled in Centre for IC & SR works/5 Co's). PhD Thesis valued by ISRO & University of Michigan. Published >50books and >15journals.Expertised personality as PM and CM in TN. Service span of 25 years (1993-2019 till date). Currently, Working in VTU. Also, Working as Dissertation Supervisor in Kalam Research Centre (UAN:TN11A0005748, Approval by Ministry of MSME, Goverment of India) at Dharmapuri and as ED, Free Consultancy (Laxmi's Trust Reg.No: 89/13 in Sub-registrar office) at Koilpatti, near erstwhile Korkai(Pearl City). A multi-faceted teacher, ie, former PROF - BE Mech, Aero, EEE, ECE, MBA; and former DIRECTOR - M.E. Mechatronics, NBA, NPTEL & former DEAN - Personality, Profiles, FDTP and Communication / IEC; and former  PROF - B.E. Aero, Civil, ME-Cryo, ME-Aero, PhD-Sci, PhD-Eng & MS-Mech / PSNCET; and currently PROFESSOR - Chemicals, Environment, Cryofuels, Batteries, Materials, MEMS & Research in Veltech. Enough industry exposure, ie, SAIL R&D, TISCO, ISSDA, NSL and TVS. APTITUDE - Graduate Aptitude Test in Engineering (GATE)Year 1992 / Overall Score 98.06 percentile (GATE Subjects : Paper 1 -Basic Sciences and Engineering / 97.65 percentile, & Paper 2 - Chemistry / 95.51 percentile). Recently, in June 2018 - Presented 5 papers in Dubai UAE BioCore Conferences (Paper 1-Cryofuels : Mechanical Faculty, Paper 2-Bioenergetics :  Univiversity Elective, Paper 3-Bioenergetics : Biotechnology Elective, Paper 4 - High Entropy Alloys : Material, Properties, Synthesis and Applications & Paper 5-Sol Gel deposition Methods:Nanomaterial Synthesis) & Published 4 papers (Paper 1 - Creep in IJMERT /2018, Paper 2 - Cu bearing EDD steel in IJMPERD / 2019, Paper 3 - Oxidation of 310S in IJEST/2019 & Paper 4-FLD modeling in IJLTEMAS / 2019)

References

REFERENCES

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V.Suriyanarayanan, and A.Kanniraj, “Creep and oxidation of AISI 310S alloy”, National Conference on Creep, Fatigue and Creep-Fatigue interaction, Indira Gandhi Centre for Atomic Research, Kalpakkam, India, 1999

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Published

2019-08-21

Issue

Vol. 9 No. 2 (2019)

Section

Articles

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