DC Field | Value | Language |
---|---|---|
dc.contributor.author | CHO, KM | - |
dc.contributor.author | DUFFY, J | - |
dc.contributor.author | LEE, SH | - |
dc.contributor.author | RHYU, JW | - |
dc.date.accessioned | 2016-03-31T14:48:30Z | - |
dc.date.available | 2016-03-31T14:48:30Z | - |
dc.date.created | 2009-08-24 | - |
dc.date.issued | 1993-04 | - |
dc.identifier.issn | 0360-2133 | - |
dc.identifier.other | 1993-OAK-0000008705 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/22099 | - |
dc.description.abstract | An investigation was conducted into the effects of test temperature and loading rate on the initiation of plane strain fracture of an HY-100 steel. Fracture toughness tests were conducted using fatigue precracked round bars loaded in tension to produce a quasi-static stress intensity rate of K(I) = 1 MPa square-root m/s and a dynamic rate of K(I) = 2 x 10(6) MPa square-root m/s. Testing temperatures covered the range from -150-degrees-C to 200-degrees-C, which encompasses fracture initiation modes involving quasi-cleavage to fully ductile fracture. The results of toughness tests show that the lower-shelf values of fracture toughness were substantially independent of loading rate, while the dynamic values exceeded the quasi-static values by about 50 pct on the upper shelf. In analyzing these results, phenomenological fracture initiation models were adopted based on the requirement that, for fracture to occur, a critical strain or stress must be achieved over a critical distance. In separate tests, the observation of microfracture processes was investigated using fractography and an in situ scanning electron microscope (SEM) fracture technique. The layered appearance of the fracture surfaces was found to be associated with a banded structure which generally contains many MnS inclusions, probably resulting in a reduction of the fracture toughness values. | - |
dc.description.statementofresponsibility | X | - |
dc.language | English | - |
dc.publisher | MINERALS METALS MATERIALS SOC | - |
dc.relation.isPartOf | METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | - |
dc.title | DYNAMIC FRACTURE INITIATION BEHAVIOR OF AN HY-100 STEEL | - |
dc.type | Article | - |
dc.contributor.college | 신소재공학과 | - |
dc.identifier.doi | 10.1007/BF02656511 | - |
dc.author.google | CHO, KM | - |
dc.author.google | DUFFY, J | - |
dc.author.google | LEE, SH | - |
dc.author.google | RHYU, JW | - |
dc.relation.volume | 24 | - |
dc.relation.startpage | 901 | - |
dc.relation.lastpage | 912 | - |
dc.contributor.id | 10052220 | - |
dc.relation.journal | METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | - |
dc.relation.index | SCI급, SCOPUS 등재논문 | - |
dc.relation.sci | SCIE | - |
dc.collections.name | Journal Papers | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, v.24, no.4, pp.901 - 912 | - |
dc.identifier.wosid | A1993KU56800013 | - |
dc.citation.endPage | 912 | - |
dc.citation.number | 4 | - |
dc.citation.startPage | 901 | - |
dc.citation.title | METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | - |
dc.citation.volume | 24 | - |
dc.contributor.affiliatedAuthor | LEE, SH | - |
dc.identifier.scopusid | 2-s2.0-51249165068 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 10 | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | TEMPERED MARTENSITE EMBRITTLEMENT | - |
dc.subject.keywordPlus | 2 4340 STEELS | - |
dc.subject.keywordPlus | MICROSTRUCTURE | - |
dc.subject.keywordPlus | TOUGHNESS | - |
dc.subject.keywordPlus | TEMPERATURE | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
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