A novel cobalt-free FeMnCrNi medium-entropy alloy with exceptional yield strength and ductility at cryogenic temperature
In this study, a novel cobalt-free Fe40Mn20Cr20Ni20 (at.%) medium-entropy alloy (MEA) with low cost is purposively designed. The partially recrystallized microstructure was introduced into the single-phase FeMnCrNi MEA via thermo-mechanical processing. Surprisingly, the present MEA displays ultrahig...
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| Veröffentlicht in: | Journal of alloys and compounds 2020-06, Vol.827, p.153981, Article 153981 |
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| container_title | Journal of alloys and compounds |
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| creator | Bian, B.B. Guo, N. Yang, H.J. Guo, R.P. Yang, L. Wu, Y.C. Qiao, J.W. |
| description | In this study, a novel cobalt-free Fe40Mn20Cr20Ni20 (at.%) medium-entropy alloy (MEA) with low cost is purposively designed. The partially recrystallized microstructure was introduced into the single-phase FeMnCrNi MEA via thermo-mechanical processing. Surprisingly, the present MEA displays ultrahigh yield and ultimate tensile strengths of 1.2 and 1.34 GPa, respectively, and large ductility with a uniform elongation of 22% at 77 K. This is mainly due to the accumulation and entanglement of a large number of dislocations and the activation of deformation twins at 77 K.
•A novel cobalt-free Fe40Mn20Cr20Ni20 medium-entropy alloy with low cost is purposively designed.•The present medium-entropy alloy displays ultrahigh yielding and ultimate tensile strengths of 1.2 and 1.34 GPa, respectively, and good ductility with a uniform elongation of 22% at 77 K.•Compared with many other advanced alloys, the present MEA has outstanding advantages in the mechanical performances at 77 K and the cost of raw materials for the preparation. |
| doi_str_mv | 10.1016/j.jallcom.2020.153981 |
| format | Article |
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•A novel cobalt-free Fe40Mn20Cr20Ni20 medium-entropy alloy with low cost is purposively designed.•The present medium-entropy alloy displays ultrahigh yielding and ultimate tensile strengths of 1.2 and 1.34 GPa, respectively, and good ductility with a uniform elongation of 22% at 77 K.•Compared with many other advanced alloys, the present MEA has outstanding advantages in the mechanical performances at 77 K and the cost of raw materials for the preparation.</description><identifier>ISSN: 0925-8388</identifier><identifier>EISSN: 1873-4669</identifier><identifier>DOI: 10.1016/j.jallcom.2020.153981</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Alloys ; Cobalt base alloys ; Cryogenic temperature ; Ductility ; Elongation ; Entanglement ; Entropy ; Mechanical properties ; Medium entropy alloys ; Medium-entropy alloy ; Partially recrystallized microstructure ; Recrystallization ; Thermo-mechanical processing ; Thermomechanical treatment ; Twinning ; Yield strength</subject><ispartof>Journal of alloys and compounds, 2020-06, Vol.827, p.153981, Article 153981</ispartof><rights>2020 Elsevier B.V.</rights><rights>Copyright Elsevier BV Jun 25, 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c337t-5a7b4aad0ca18703e6028e6e57a3e4e84194779f2e43a63fddea7c1e9fcbf74b3</citedby><cites>FETCH-LOGICAL-c337t-5a7b4aad0ca18703e6028e6e57a3e4e84194779f2e43a63fddea7c1e9fcbf74b3</cites><orcidid>0000-0002-7195-7315 ; 0000-0003-0462-1923</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jallcom.2020.153981$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,45974</link.rule.ids></links><search><creatorcontrib>Bian, B.B.</creatorcontrib><creatorcontrib>Guo, N.</creatorcontrib><creatorcontrib>Yang, H.J.</creatorcontrib><creatorcontrib>Guo, R.P.</creatorcontrib><creatorcontrib>Yang, L.</creatorcontrib><creatorcontrib>Wu, Y.C.</creatorcontrib><creatorcontrib>Qiao, J.W.</creatorcontrib><title>A novel cobalt-free FeMnCrNi medium-entropy alloy with exceptional yield strength and ductility at cryogenic temperature</title><title>Journal of alloys and compounds</title><description>In this study, a novel cobalt-free Fe40Mn20Cr20Ni20 (at.%) medium-entropy alloy (MEA) with low cost is purposively designed. The partially recrystallized microstructure was introduced into the single-phase FeMnCrNi MEA via thermo-mechanical processing. Surprisingly, the present MEA displays ultrahigh yield and ultimate tensile strengths of 1.2 and 1.34 GPa, respectively, and large ductility with a uniform elongation of 22% at 77 K. This is mainly due to the accumulation and entanglement of a large number of dislocations and the activation of deformation twins at 77 K.
•A novel cobalt-free Fe40Mn20Cr20Ni20 medium-entropy alloy with low cost is purposively designed.•The present medium-entropy alloy displays ultrahigh yielding and ultimate tensile strengths of 1.2 and 1.34 GPa, respectively, and good ductility with a uniform elongation of 22% at 77 K.•Compared with many other advanced alloys, the present MEA has outstanding advantages in the mechanical performances at 77 K and the cost of raw materials for the preparation.</description><subject>Alloys</subject><subject>Cobalt base alloys</subject><subject>Cryogenic temperature</subject><subject>Ductility</subject><subject>Elongation</subject><subject>Entanglement</subject><subject>Entropy</subject><subject>Mechanical properties</subject><subject>Medium entropy alloys</subject><subject>Medium-entropy alloy</subject><subject>Partially recrystallized microstructure</subject><subject>Recrystallization</subject><subject>Thermo-mechanical processing</subject><subject>Thermomechanical treatment</subject><subject>Twinning</subject><subject>Yield strength</subject><issn>0925-8388</issn><issn>1873-4669</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNqFkMtOwzAQRS0EEqXwCUiWWKf4ldcKVRUFpAIbWFuuMymOkjjYTmn-HqN2z2qkmXtn5h6EbilZUEKz-2bRqLbVtlswwmIv5WVBz9CMFjlPRJaV52hGSpYmBS-KS3TlfUMIoSWnM3RY4t7uocXablUbktoB4DW89iv3ZnAHlRm7BPrg7DDheMVO-MeELwwHDUMwtlctngy0FfbBQb-LI9VXuBp1MK0J0ROwdpPdQW80DtAN4FQYHVyji1q1Hm5OdY4-148fq-dk8_70slpuEs15HpJU5VuhVEW0inEIh4ywAjJIc8VBQCFoKfK8rBkIrjJeVxWoXFMoa72tc7Hlc3R33Ds4-z2CD7Kxo4tve8mEYJxFZiyq0qNKO-u9g1oOznTKTZIS-QdZNvIEWf5BlkfI0fdw9EGMsDfgpNcGeh25OdBBVtb8s-EXWtOK2Q</recordid><startdate>20200625</startdate><enddate>20200625</enddate><creator>Bian, B.B.</creator><creator>Guo, N.</creator><creator>Yang, H.J.</creator><creator>Guo, R.P.</creator><creator>Yang, L.</creator><creator>Wu, Y.C.</creator><creator>Qiao, J.W.</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><orcidid>https://orcid.org/0000-0002-7195-7315</orcidid><orcidid>https://orcid.org/0000-0003-0462-1923</orcidid></search><sort><creationdate>20200625</creationdate><title>A novel cobalt-free FeMnCrNi medium-entropy alloy with exceptional yield strength and ductility at cryogenic temperature</title><author>Bian, B.B. ; Guo, N. ; Yang, H.J. ; Guo, R.P. ; Yang, L. ; Wu, Y.C. ; Qiao, J.W.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c337t-5a7b4aad0ca18703e6028e6e57a3e4e84194779f2e43a63fddea7c1e9fcbf74b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Alloys</topic><topic>Cobalt base alloys</topic><topic>Cryogenic temperature</topic><topic>Ductility</topic><topic>Elongation</topic><topic>Entanglement</topic><topic>Entropy</topic><topic>Mechanical properties</topic><topic>Medium entropy alloys</topic><topic>Medium-entropy alloy</topic><topic>Partially recrystallized microstructure</topic><topic>Recrystallization</topic><topic>Thermo-mechanical processing</topic><topic>Thermomechanical treatment</topic><topic>Twinning</topic><topic>Yield strength</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bian, B.B.</creatorcontrib><creatorcontrib>Guo, N.</creatorcontrib><creatorcontrib>Yang, H.J.</creatorcontrib><creatorcontrib>Guo, R.P.</creatorcontrib><creatorcontrib>Yang, L.</creatorcontrib><creatorcontrib>Wu, Y.C.</creatorcontrib><creatorcontrib>Qiao, J.W.</creatorcontrib><collection>CrossRef</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of alloys and compounds</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bian, B.B.</au><au>Guo, N.</au><au>Yang, H.J.</au><au>Guo, R.P.</au><au>Yang, L.</au><au>Wu, Y.C.</au><au>Qiao, J.W.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A novel cobalt-free FeMnCrNi medium-entropy alloy with exceptional yield strength and ductility at cryogenic temperature</atitle><jtitle>Journal of alloys and compounds</jtitle><date>2020-06-25</date><risdate>2020</risdate><volume>827</volume><spage>153981</spage><pages>153981-</pages><artnum>153981</artnum><issn>0925-8388</issn><eissn>1873-4669</eissn><abstract>In this study, a novel cobalt-free Fe40Mn20Cr20Ni20 (at.%) medium-entropy alloy (MEA) with low cost is purposively designed. The partially recrystallized microstructure was introduced into the single-phase FeMnCrNi MEA via thermo-mechanical processing. Surprisingly, the present MEA displays ultrahigh yield and ultimate tensile strengths of 1.2 and 1.34 GPa, respectively, and large ductility with a uniform elongation of 22% at 77 K. This is mainly due to the accumulation and entanglement of a large number of dislocations and the activation of deformation twins at 77 K.
•A novel cobalt-free Fe40Mn20Cr20Ni20 medium-entropy alloy with low cost is purposively designed.•The present medium-entropy alloy displays ultrahigh yielding and ultimate tensile strengths of 1.2 and 1.34 GPa, respectively, and good ductility with a uniform elongation of 22% at 77 K.•Compared with many other advanced alloys, the present MEA has outstanding advantages in the mechanical performances at 77 K and the cost of raw materials for the preparation.</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jallcom.2020.153981</doi><orcidid>https://orcid.org/0000-0002-7195-7315</orcidid><orcidid>https://orcid.org/0000-0003-0462-1923</orcidid></addata></record> |
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| ispartof | Journal of alloys and compounds, 2020-06, Vol.827, p.153981, Article 153981 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Alloys Cobalt base alloys Cryogenic temperature Ductility Elongation Entanglement Entropy Mechanical properties Medium entropy alloys Medium-entropy alloy Partially recrystallized microstructure Recrystallization Thermo-mechanical processing Thermomechanical treatment Twinning Yield strength |
| title | A novel cobalt-free FeMnCrNi medium-entropy alloy with exceptional yield strength and ductility at cryogenic temperature |
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