Tribological Behavior of Boronized Fe<sub>40</sub>Mn<sub>20</sub>Cr<sub>20</sub>Ni<sub>20</sub> High-Entropy Alloys
The tribological behavior of hot-rolled and boronized Fe<sub>40</sub>Mn<sub>20</sub>Cr<sub>20</sub>Ni<sub>20</sub> high-entropy alloys (HEAs) sliding against a Si<sub>3</sub>N<sub>4</sub> ball was investigated in the air, deioni...
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MDPI AG
2021-09-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/11/10/1561 |
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| author | Xin Guo Xi Jin Xiaohui Shi Huijun Yang Min Zhang Junwei Qiao |
| author_facet | Xin Guo Xi Jin Xiaohui Shi Huijun Yang Min Zhang Junwei Qiao |
| author_sort | Xin Guo |
| collection | DOAJ |
| description | The tribological behavior of hot-rolled and boronized Fe<sub>40</sub>Mn<sub>20</sub>Cr<sub>20</sub>Ni<sub>20</sub> high-entropy alloys (HEAs) sliding against a Si<sub>3</sub>N<sub>4</sub> ball was investigated in the air, deionized water and seawater. The results showed that the hot-rolled Fe<sub>40</sub>Mn<sub>20</sub>Cr<sub>20</sub>Ni<sub>20</sub> HEA was composed of an FCC (face-centered cubic) phase. In addition, the boronized HEA was composed of a great number of borides, including CrB, FeB, MnB, Fe<sub>2</sub>B, Fe<sub>3</sub>B and MnB<sub>2</sub>. The hardness increased from 139 HV to 970 HV after boronizing. In air, the wear rate decreased from 4.51 × 10<sup>−4</sup> mm<sup>3</sup>/Nm to 0.72 × 10<sup>−4</sup> mm<sup>3</sup>/Nm after boronizing. The wear mechanism transformed from abrasive wear and oxidative wear to the polishing effect. After boronizing, in the deionized water, the wear rate decreased from 1.27 × 10<sup>−4</sup> mm<sup>3</sup>/Nm to 8.43 × 10<sup>−5</sup> mm<sup>3</sup>/Nm. The wear mechanism transformed from abrasive wear and delamination wear to delamination wear. In the seawater, the wear rate decreased by about ten times that of hot-rolled alloy. |
| first_indexed | 2024-03-10T06:23:05Z |
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| language | English |
| last_indexed | 2024-03-10T06:23:05Z |
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| spelling | doaj.art-757df6e019d543d3b5e9ca11775feee52023-11-22T19:08:41ZengMDPI AGMetals2075-47012021-09-011110156110.3390/met11101561Tribological Behavior of Boronized Fe<sub>40</sub>Mn<sub>20</sub>Cr<sub>20</sub>Ni<sub>20</sub> High-Entropy AlloysXin Guo0Xi Jin1Xiaohui Shi2Huijun Yang3Min Zhang4Junwei Qiao5College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaCollege of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaCollege of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaCollege of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaCollege of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaCollege of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaThe tribological behavior of hot-rolled and boronized Fe<sub>40</sub>Mn<sub>20</sub>Cr<sub>20</sub>Ni<sub>20</sub> high-entropy alloys (HEAs) sliding against a Si<sub>3</sub>N<sub>4</sub> ball was investigated in the air, deionized water and seawater. The results showed that the hot-rolled Fe<sub>40</sub>Mn<sub>20</sub>Cr<sub>20</sub>Ni<sub>20</sub> HEA was composed of an FCC (face-centered cubic) phase. In addition, the boronized HEA was composed of a great number of borides, including CrB, FeB, MnB, Fe<sub>2</sub>B, Fe<sub>3</sub>B and MnB<sub>2</sub>. The hardness increased from 139 HV to 970 HV after boronizing. In air, the wear rate decreased from 4.51 × 10<sup>−4</sup> mm<sup>3</sup>/Nm to 0.72 × 10<sup>−4</sup> mm<sup>3</sup>/Nm after boronizing. The wear mechanism transformed from abrasive wear and oxidative wear to the polishing effect. After boronizing, in the deionized water, the wear rate decreased from 1.27 × 10<sup>−4</sup> mm<sup>3</sup>/Nm to 8.43 × 10<sup>−5</sup> mm<sup>3</sup>/Nm. The wear mechanism transformed from abrasive wear and delamination wear to delamination wear. In the seawater, the wear rate decreased by about ten times that of hot-rolled alloy.https://www.mdpi.com/2075-4701/11/10/1561high-entropy alloysboronizedwearoxidationlubricate |
| spellingShingle | Xin Guo Xi Jin Xiaohui Shi Huijun Yang Min Zhang Junwei Qiao Tribological Behavior of Boronized Fe<sub>40</sub>Mn<sub>20</sub>Cr<sub>20</sub>Ni<sub>20</sub> High-Entropy Alloys Metals high-entropy alloys boronized wear oxidation lubricate |
| title | Tribological Behavior of Boronized Fe<sub>40</sub>Mn<sub>20</sub>Cr<sub>20</sub>Ni<sub>20</sub> High-Entropy Alloys |
| title_full | Tribological Behavior of Boronized Fe<sub>40</sub>Mn<sub>20</sub>Cr<sub>20</sub>Ni<sub>20</sub> High-Entropy Alloys |
| title_fullStr | Tribological Behavior of Boronized Fe<sub>40</sub>Mn<sub>20</sub>Cr<sub>20</sub>Ni<sub>20</sub> High-Entropy Alloys |
| title_full_unstemmed | Tribological Behavior of Boronized Fe<sub>40</sub>Mn<sub>20</sub>Cr<sub>20</sub>Ni<sub>20</sub> High-Entropy Alloys |
| title_short | Tribological Behavior of Boronized Fe<sub>40</sub>Mn<sub>20</sub>Cr<sub>20</sub>Ni<sub>20</sub> High-Entropy Alloys |
| title_sort | tribological behavior of boronized fe sub 40 sub mn sub 20 sub cr sub 20 sub ni sub 20 sub high entropy alloys |
| topic | high-entropy alloys boronized wear oxidation lubricate |
| url | https://www.mdpi.com/2075-4701/11/10/1561 |
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