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dc.contributor.authorSURESH, MRen_US
dc.contributor.authorKUMAR, RSen_US
dc.contributor.authorSREEKUMAR, Ken_US
dc.contributor.authorSINHA, PPen_US
dc.contributor.authorBALLAL, NBen_US
dc.contributor.authorRAO, PKen_US
dc.date.accessioned2011-08-18T06:43:33Zen_US
dc.date.accessioned2011-12-26T12:55:36Zen_US
dc.date.accessioned2011-12-27T05:41:31Z
dc.date.available2011-08-18T06:43:33Zen_US
dc.date.available2011-12-26T12:55:36Zen_US
dc.date.available2011-12-27T05:41:31Z
dc.date.issued2005en_US
dc.identifier.citationMATERIALS SCIENCE AND TECHNOLOGY, 21(3), 357-365en_US
dc.identifier.issn0267-0836en_US
dc.identifier.urihttp://dx.doi.org/10.1179/174328405X27106en_US
dc.identifier.urihttp://dspace.library.iitb.ac.in/xmlui/handle/10054/9915en_US
dc.identifier.urihttp://hdl.handle.net/10054/9915
dc.description.abstractThe fracture properties of a new ultrahigh strength low alloy steel 0.3C-CrMoV(ESR), developed primarily as a cost effective material for space launch vehicle applications, have been evaluated through two different methods. The steel was processed through electroslag remelting (ESR) with inoculation using niobium to produce 4 tonne ingots, which were forged and rolled into plates. The fracture toughness of this steel has been evaluated by testing compact tension specimens and surface cracked tension specimens following the procedures in ASTM E-399 and ASTM E-740 respectively. The steel, after quenching and tempering, has a 0.2% proof strength of 1470 MPa, ultimate tensile strength of 1725 MPa and fracture toughness of 96 MPa root m. It has high residual strength also in the presence of surface cracks of 5 x 2 mm size. The microstructure consists of fine grains in the annealed condition and lath martensite in the hardened condition. After tempering, fine carbide precipitates distributed along the lath boundaries and within the laths were observed.en_US
dc.language.isoenen_US
dc.publisherMANEY PUBLISHINGen_US
dc.subject.otherFracture Toughnessen_US
dc.subject.otherResidual Strengthen_US
dc.subject.other0 Center Dot 3c-Crmov(Esr) Steelen_US
dc.subject.otherEsren_US
dc.subject.otherInoculationen_US
dc.subject.otherUltrahigh Strengthen_US
dc.subject.otherLow Alloy Steelen_US
dc.subject.otherCompact Tension Specimenen_US
dc.subject.otherSurface Cracked Tension (Sct) Specimenen_US
dc.subject.otherOptical Metallographyen_US
dc.subject.otherSemen_US
dc.subject.otherTemen_US
dc.subject.otherSpace Launch Vehicleen_US
dc.titleStudy of fracture properties of 0 center dot 3C-CrMoV(ESR) ultrahigh strength steelen_US
dc.typeArticleen_US


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