DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Dae Woong | - |
dc.contributor.author | Kim, Selim | - |
dc.contributor.author | Yang, Junha | - |
dc.contributor.author | Lee, Sunghak | - |
dc.contributor.author | Sohn, Seok Su | - |
dc.date.accessioned | 2022-07-12T02:20:06Z | - |
dc.date.available | 2022-07-12T02:20:06Z | - |
dc.date.created | 2022-06-03 | - |
dc.date.issued | 2022-08 | - |
dc.identifier.issn | 1044-5803 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/113348 | - |
dc.description.abstract | Investigations of dynamic deformation and ballistic performance of ultra-high-strength lightweight steels for steel armor applications have not been conducted to date. In this study, effects of boron(B)-doping on ballistic performance were explored in subzero-treated Fe-0.3C-9Mn-5Al and Fe-0.3C-9Mn-5Al-0.005B (wt%) lightweight steels in relation to band structures and B segregation. The dynamic deformation and adiabatic shear band (ASB) formation behaviors were examined by a Hopkinson pressure bar (SHPB). The band structure is critical in inhibiting ASB propagation, as it is continuously blocked at tempered-martensite/ferrite boundaries. The crack propagates along the embrittled ASB and penetrates into tempered-martensite/ferrite boundaries, producing delamination of elongated grains in the undoped steel. On the other hand, the delamination does not occur in the B-doped steel because the segregation of solute B at prior austenite grain boundaries enhances the grain-boundary cohesion. Thus, the B-doped steel outperforms conventional rolled homogeneous armor steels and the undoped steel as well, providing a significant deal of potential for developing excellent ballistic-performance lightweight steel armors. | - |
dc.language | English | - |
dc.publisher | Elsevier BV | - |
dc.relation.isPartOf | Materials Characterization | - |
dc.title | Enhancement of ballistic performance enabled by boron-doping in subzero-treated (ferrite+austenite+martensite) triplex lightweight steel | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.matchar.2022.112021 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | Materials Characterization, v.190 | - |
dc.identifier.wosid | 000812278900002 | - |
dc.citation.title | Materials Characterization | - |
dc.citation.volume | 190 | - |
dc.contributor.affiliatedAuthor | Kim, Selim | - |
dc.contributor.affiliatedAuthor | Yang, Junha | - |
dc.contributor.affiliatedAuthor | Lee, Sunghak | - |
dc.identifier.scopusid | 2-s2.0-85131406782 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | TRANSFORMATION-INDUCED PLASTICITY | - |
dc.subject.keywordPlus | ADIABATIC SHEAR BANDS | - |
dc.subject.keywordPlus | HIGH-STRAIN RATE | - |
dc.subject.keywordPlus | RETAINED AUSTENITE | - |
dc.subject.keywordPlus | PHASE-TRANSFORMATION | - |
dc.subject.keywordPlus | TENSILE PROPERTIES | - |
dc.subject.keywordPlus | GRAIN-SIZE | - |
dc.subject.keywordPlus | FRACTURE | - |
dc.subject.keywordPlus | TEMPERATURE | - |
dc.subject.keywordPlus | STRENGTH | - |
dc.subject.keywordAuthor | Medium-Mn lightweight steel | - |
dc.subject.keywordAuthor | Ballistic performance | - |
dc.subject.keywordAuthor | Boron-doping | - |
dc.subject.keywordAuthor | Adiabatic shear band (ASB) | - |
dc.subject.keywordAuthor | Split Hopkinson pressure bar (SHPB) | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Metallurgy & Metallurgical Engineering | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Characterization & Testing | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Metallurgy & Metallurgical Engineering | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
library@postech.ac.kr Tel: 054-279-2548
Copyrights © by 2017 Pohang University of Science ad Technology All right reserved.