Superior tensile properties of 1%C-CoCrFeMnNi high-entropy alloy additively manufactured by selective laser melting
CoCrFeMnNi high-entropy alloys containing 1 at% carbon (C-HEAs) were additively manufactured using selective laser melting (SLM). Superior tensile properties of the as-built C-HEA (to previously reported ones) were achieved by utilizing multiple strengthening mechanisms (i.e. solid solution, grain r...
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Taylor & Francis Group
2020-01-01
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| Series: | Materials Research Letters |
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| Online Access: | http://dx.doi.org/10.1080/21663831.2019.1638844 |
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doaj-f4a93e531a37446e874937e0bd8626d02020-11-25T02:53:54ZengTaylor & Francis GroupMaterials Research Letters2166-38312020-01-01811710.1080/21663831.2019.16388441638844Superior tensile properties of 1%C-CoCrFeMnNi high-entropy alloy additively manufactured by selective laser meltingJeong Min Park0Jungho Choe1Jung Gi Kim2Jae Wung Bae3Jongun Moon4Sangsun Yang5Kyung Tae Kim6Ji-Hun Yu7Hyoung Seop Kim8Pohang University of Science and TechnologyKorea Institute of Materials Science (KIMS)Pohang University of Science and TechnologyPohang University of Science and TechnologyPohang University of Science and TechnologyKorea Institute of Materials Science (KIMS)Korea Institute of Materials Science (KIMS)Korea Institute of Materials Science (KIMS)Pohang University of Science and TechnologyCoCrFeMnNi high-entropy alloys containing 1 at% carbon (C-HEAs) were additively manufactured using selective laser melting (SLM). Superior tensile properties of the as-built C-HEA (to previously reported ones) were achieved by utilizing multiple strengthening mechanisms (i.e. solid solution, grain refinement, dislocation density, and nano-precipitation) by this new manufacturing method. In particular, the SLM process could allow to maximize the strengthening effect of carbon addition to HEAs via finely distributed nano-carbides at the boundaries of solidification cellular structure. This work will open a new window to utilize the SLM process for enhanced mechanical properties of HEAs with great potential.http://dx.doi.org/10.1080/21663831.2019.1638844high-entropy alloyadditive manufacturingmicrostructuremechanical propertymultiple strengthening |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Jeong Min Park Jungho Choe Jung Gi Kim Jae Wung Bae Jongun Moon Sangsun Yang Kyung Tae Kim Ji-Hun Yu Hyoung Seop Kim |
| spellingShingle |
Jeong Min Park Jungho Choe Jung Gi Kim Jae Wung Bae Jongun Moon Sangsun Yang Kyung Tae Kim Ji-Hun Yu Hyoung Seop Kim Superior tensile properties of 1%C-CoCrFeMnNi high-entropy alloy additively manufactured by selective laser melting Materials Research Letters high-entropy alloy additive manufacturing microstructure mechanical property multiple strengthening |
| author_facet |
Jeong Min Park Jungho Choe Jung Gi Kim Jae Wung Bae Jongun Moon Sangsun Yang Kyung Tae Kim Ji-Hun Yu Hyoung Seop Kim |
| author_sort |
Jeong Min Park |
| title |
Superior tensile properties of 1%C-CoCrFeMnNi high-entropy alloy additively manufactured by selective laser melting |
| title_short |
Superior tensile properties of 1%C-CoCrFeMnNi high-entropy alloy additively manufactured by selective laser melting |
| title_full |
Superior tensile properties of 1%C-CoCrFeMnNi high-entropy alloy additively manufactured by selective laser melting |
| title_fullStr |
Superior tensile properties of 1%C-CoCrFeMnNi high-entropy alloy additively manufactured by selective laser melting |
| title_full_unstemmed |
Superior tensile properties of 1%C-CoCrFeMnNi high-entropy alloy additively manufactured by selective laser melting |
| title_sort |
superior tensile properties of 1%c-cocrfemnni high-entropy alloy additively manufactured by selective laser melting |
| publisher |
Taylor & Francis Group |
| series |
Materials Research Letters |
| issn |
2166-3831 |
| publishDate |
2020-01-01 |
| description |
CoCrFeMnNi high-entropy alloys containing 1 at% carbon (C-HEAs) were additively manufactured using selective laser melting (SLM). Superior tensile properties of the as-built C-HEA (to previously reported ones) were achieved by utilizing multiple strengthening mechanisms (i.e. solid solution, grain refinement, dislocation density, and nano-precipitation) by this new manufacturing method. In particular, the SLM process could allow to maximize the strengthening effect of carbon addition to HEAs via finely distributed nano-carbides at the boundaries of solidification cellular structure. This work will open a new window to utilize the SLM process for enhanced mechanical properties of HEAs with great potential. |
| topic |
high-entropy alloy additive manufacturing microstructure mechanical property multiple strengthening |
| url |
http://dx.doi.org/10.1080/21663831.2019.1638844 |
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