完整後設資料紀錄
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dc.contributor.authorYen, Chao-Chunen_US
dc.contributor.authorHuang, Guan-Rongen_US
dc.contributor.authorTan, Yun-Chengen_US
dc.contributor.authorYeh, Han-Wenen_US
dc.contributor.authorLuo, Da-Jien_US
dc.contributor.authorHsieh, Kang-Tienen_US
dc.contributor.authorHuang, E-Wenen_US
dc.contributor.authorYeh, Jien-Weien_US
dc.contributor.authorLin, Su-Jienen_US
dc.contributor.authorWang, Chun-Chiehen_US
dc.contributor.authorKuo, Chin-Lungen_US
dc.contributor.authorChang, Shou-Yien_US
dc.contributor.authorLo, Yu-Chiehen_US
dc.date.accessioned2020-02-02T23:54:28Z-
dc.date.available2020-02-02T23:54:28Z-
dc.date.issued2020-03-25en_US
dc.identifier.issn0925-8388en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.jallcom.2019.152876en_US
dc.identifier.urihttp://hdl.handle.net/11536/153498-
dc.description.abstractThe superior mechanical properties of high-entropy alloys (HEAs) have made an outstanding success in materials science and engineering. Studies to date have been devoted to what the severe lattice distortion induces. However, most researchers focus on its stimulation to plastic deformation instead of scrutinizing the variations on elasticity. Compared with conventional alloys, HEAs may perform disproportionate elasticity with uneven local lattice strain resulting from the severe lattice distortion. Therefore, it is necessary to survey its influence on the mechanical properties of HEAs systematically. In this study, the Lennard-Jones (LJ) potential, the embedded atom method (EAM) potential, and the modified embedded atom method (MEAM), are respectively conducted to investigate the lattice distortion effect on Young's modulus E (hkl) and Poisson's ratio nu (hkl, theta) along [100], [110], and [111] loading directions for several fcc metals composed of 1 similar to 5 atomic types, including Ni, Ni98W2, Ni96W4, FeCrNi, and CoNiCrFeMn HEAs. Also, a method is used to analyze the performance of the individual element on the elastic properties in the HEA environment. As a result, it can be unveiled that the effect of electron density inconsistency is more dominant than the effect of lattice distortion associated with the atomic size difference. The electronic configuration in the HEA environment plays a major role in elastic anisotropy while the difference of the atomic radii does the minor one. The anisotropy of CoNiCrFeMn HEA analyzed by this work is also consistent with in-situ neutron diffraction measurements. (C) 2019 Elsevier B.V. All rights reserved.en_US
dc.language.isoen_USen_US
dc.subjectMolecular dynamicsen_US
dc.subjectHigh entropy alloysen_US
dc.subjectLattice distortionen_US
dc.subjectYoung's modulusen_US
dc.subjectPoisson's ratioen_US
dc.subjectElastic anisotropyen_US
dc.titleLattice distortion effect on elastic anisotropy of high entropy alloysen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.jallcom.2019.152876en_US
dc.identifier.journalJOURNAL OF ALLOYS AND COMPOUNDSen_US
dc.citation.volume818en_US
dc.citation.spage0en_US
dc.citation.epage0en_US
dc.contributor.department材料科學與工程學系zh_TW
dc.contributor.departmentDepartment of Materials Science and Engineeringen_US
dc.identifier.wosnumberWOS:000506166900084en_US
dc.citation.woscount0en_US
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