A Novel Non-Equiatomic (W<sub>35</sub>Ta<sub>35</sub>Mo<sub>15</sub>Nb<sub>15</sub>)<sub>95</sub>Ni<sub>5</sub> Refractory High Entropy Alloy with High Density Fabricated by Powder Metallurgical Process
A non-equiatomic refractory high entropy alloy (RHEA), (W<sub>35</sub>Ta<sub>35</sub>Mo<sub>15</sub>Nb<sub>15</sub>)<sub>95</sub>Ni<sub>5</sub> with high density of 14.55 g/cm<sup>3</sup> was fabricated by powder met...
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| Format: | Article |
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MDPI AG
2020-10-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/10/11/1436 |
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| author | Bohua Duan Yingrui Yu Xinli Liu Dezhi Wang Zhuangzhi Wu |
| author_facet | Bohua Duan Yingrui Yu Xinli Liu Dezhi Wang Zhuangzhi Wu |
| author_sort | Bohua Duan |
| collection | DOAJ |
| description | A non-equiatomic refractory high entropy alloy (RHEA), (W<sub>35</sub>Ta<sub>35</sub>Mo<sub>15</sub>Nb<sub>15</sub>)<sub>95</sub>Ni<sub>5</sub> with high density of 14.55 g/cm<sup>3</sup> was fabricated by powder metallurgical process of mechanical alloying (MA) and spark plasma sintering (SPS). The mechanical alloying behavior of the metallic powders was studied systematically, and the microstructure and phase composition for both the powders and alloys were analyzed. Results show that the crystal consists of the primary solid solution and marginal oxide inclusion (Nb<sub>5.7</sub>Ni<sub>4</sub>Ta<sub>2.3</sub>O<sub>2</sub>). In addition, the maximum strength, yield strength and fracture strain are, 2562 MPa, 2128 MPa, 8.16%, respectively. |
| first_indexed | 2024-03-10T15:15:50Z |
| format | Article |
| id | doaj.art-68fdee00308a49568ac604abee64efed |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T15:15:50Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-68fdee00308a49568ac604abee64efed2023-11-20T18:57:10ZengMDPI AGMetals2075-47012020-10-011011143610.3390/met10111436A Novel Non-Equiatomic (W<sub>35</sub>Ta<sub>35</sub>Mo<sub>15</sub>Nb<sub>15</sub>)<sub>95</sub>Ni<sub>5</sub> Refractory High Entropy Alloy with High Density Fabricated by Powder Metallurgical ProcessBohua Duan0Yingrui Yu1Xinli Liu2Dezhi Wang3Zhuangzhi Wu4School of Materials Science and Engineering, Central South University, Changsha 410083, ChinaSchool of Materials Science and Engineering, Central South University, Changsha 410083, ChinaSchool of Materials Science and Engineering, Central South University, Changsha 410083, ChinaSchool of Materials Science and Engineering, Central South University, Changsha 410083, ChinaSchool of Materials Science and Engineering, Central South University, Changsha 410083, ChinaA non-equiatomic refractory high entropy alloy (RHEA), (W<sub>35</sub>Ta<sub>35</sub>Mo<sub>15</sub>Nb<sub>15</sub>)<sub>95</sub>Ni<sub>5</sub> with high density of 14.55 g/cm<sup>3</sup> was fabricated by powder metallurgical process of mechanical alloying (MA) and spark plasma sintering (SPS). The mechanical alloying behavior of the metallic powders was studied systematically, and the microstructure and phase composition for both the powders and alloys were analyzed. Results show that the crystal consists of the primary solid solution and marginal oxide inclusion (Nb<sub>5.7</sub>Ni<sub>4</sub>Ta<sub>2.3</sub>O<sub>2</sub>). In addition, the maximum strength, yield strength and fracture strain are, 2562 MPa, 2128 MPa, 8.16%, respectively.https://www.mdpi.com/2075-4701/10/11/1436refractoryhigh entropy alloymechanical alloyingphase transformationmechanical properties |
| spellingShingle | Bohua Duan Yingrui Yu Xinli Liu Dezhi Wang Zhuangzhi Wu A Novel Non-Equiatomic (W<sub>35</sub>Ta<sub>35</sub>Mo<sub>15</sub>Nb<sub>15</sub>)<sub>95</sub>Ni<sub>5</sub> Refractory High Entropy Alloy with High Density Fabricated by Powder Metallurgical Process Metals refractory high entropy alloy mechanical alloying phase transformation mechanical properties |
| title | A Novel Non-Equiatomic (W<sub>35</sub>Ta<sub>35</sub>Mo<sub>15</sub>Nb<sub>15</sub>)<sub>95</sub>Ni<sub>5</sub> Refractory High Entropy Alloy with High Density Fabricated by Powder Metallurgical Process |
| title_full | A Novel Non-Equiatomic (W<sub>35</sub>Ta<sub>35</sub>Mo<sub>15</sub>Nb<sub>15</sub>)<sub>95</sub>Ni<sub>5</sub> Refractory High Entropy Alloy with High Density Fabricated by Powder Metallurgical Process |
| title_fullStr | A Novel Non-Equiatomic (W<sub>35</sub>Ta<sub>35</sub>Mo<sub>15</sub>Nb<sub>15</sub>)<sub>95</sub>Ni<sub>5</sub> Refractory High Entropy Alloy with High Density Fabricated by Powder Metallurgical Process |
| title_full_unstemmed | A Novel Non-Equiatomic (W<sub>35</sub>Ta<sub>35</sub>Mo<sub>15</sub>Nb<sub>15</sub>)<sub>95</sub>Ni<sub>5</sub> Refractory High Entropy Alloy with High Density Fabricated by Powder Metallurgical Process |
| title_short | A Novel Non-Equiatomic (W<sub>35</sub>Ta<sub>35</sub>Mo<sub>15</sub>Nb<sub>15</sub>)<sub>95</sub>Ni<sub>5</sub> Refractory High Entropy Alloy with High Density Fabricated by Powder Metallurgical Process |
| title_sort | novel non equiatomic w sub 35 sub ta sub 35 sub mo sub 15 sub nb sub 15 sub sub 95 sub ni sub 5 sub refractory high entropy alloy with high density fabricated by powder metallurgical process |
| topic | refractory high entropy alloy mechanical alloying phase transformation mechanical properties |
| url | https://www.mdpi.com/2075-4701/10/11/1436 |
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