Study of fracture properties of 0 center dot 3C-CrMoV(ESR) ultrahigh strength steel

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Study of fracture properties of 0 center dot 3C-CrMoV(ESR) ultrahigh strength steel

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dc.contributor.author SURESH, MR en_US
dc.contributor.author KUMAR, RS en_US
dc.contributor.author SREEKUMAR, K en_US
dc.contributor.author SINHA, PP en_US
dc.contributor.author BALLAL, NB en_US
dc.contributor.author RAO, PK en_US
dc.date.accessioned 2011-08-18T06:43:33Z en_US
dc.date.accessioned 2011-12-26T12:55:36Z en_US
dc.date.accessioned 2011-12-27T05:41:31Z
dc.date.available 2011-08-18T06:43:33Z en_US
dc.date.available 2011-12-26T12:55:36Z en_US
dc.date.available 2011-12-27T05:41:31Z
dc.date.issued 2005 en_US
dc.identifier.citation MATERIALS SCIENCE AND TECHNOLOGY, 21(3), 357-365 en_US
dc.identifier.issn 0267-0836 en_US
dc.identifier.uri http://dx.doi.org/10.1179/174328405X27106 en_US
dc.identifier.uri http://dspace.library.iitb.ac.in/xmlui/handle/10054/9915 en_US
dc.identifier.uri http://hdl.handle.net/10054/9915
dc.description.abstract The 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.iso en en_US
dc.publisher MANEY PUBLISHING en_US
dc.subject.other fracture toughness en_US
dc.subject.other residual strength en_US
dc.subject.other 0 center dot 3c-crmov(esr) steel en_US
dc.subject.other esr en_US
dc.subject.other inoculation en_US
dc.subject.other ultrahigh strength en_US
dc.subject.other low alloy steel en_US
dc.subject.other compact tension specimen en_US
dc.subject.other surface cracked tension (sct) specimen en_US
dc.subject.other optical metallography en_US
dc.subject.other sem en_US
dc.subject.other tem en_US
dc.subject.other space launch vehicle en_US
dc.title Study of fracture properties of 0 center dot 3C-CrMoV(ESR) ultrahigh strength steel en_US
dc.type Article en_US


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