Effect of Tempering Temperature on the Low Temperature Impact Toughness of 42CrMo4-V Steel
Effects of tempering temperature on the microstructures and low temperature impact toughness of 42CrMo4-V steel were investigated. Microstructures of 42CrMo4-V steel after tempering at 570–720 °C for 3 h were experimentally investigated using scanning electron microscopy (SEM), electron back-scatter...
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| Format: | Article |
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MDPI AG
2018-04-01
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| Series: | Metals |
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| Online Access: | http://www.mdpi.com/2075-4701/8/4/232 |
| _version_ | 1818515340558073856 |
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| author | Chen Sun Pai-Xian Fu Hong-Wei Liu Hang-Hang Liu Ning-Yu Du |
| author_facet | Chen Sun Pai-Xian Fu Hong-Wei Liu Hang-Hang Liu Ning-Yu Du |
| author_sort | Chen Sun |
| collection | DOAJ |
| description | Effects of tempering temperature on the microstructures and low temperature impact toughness of 42CrMo4-V steel were investigated. Microstructures of 42CrMo4-V steel after tempering at 570–720 °C for 3 h were experimentally investigated using scanning electron microscopy (SEM), electron back-scattered diffraction (EBSD), transmission electron microscopy (TEM) and X-ray diffraction (XRD). The results showed that the carbide precipitation sequence of 42CrMo4-V steel is M8C7 → M3C and the absorbed energies of 42CrMo4-V steel increase greatly from 21.7 J to 132.3 J with increasing tempering temperature from 570 °C to 720 °C. The changes of impact toughness with increasing tempering temperature were attributed to the softening of matrix, the evolution of carbide precipitates and grain structures. |
| first_indexed | 2024-12-11T00:27:40Z |
| format | Article |
| id | doaj.art-268a57a0cba1409b80d2657fc672e0f1 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-12-11T00:27:40Z |
| publishDate | 2018-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-268a57a0cba1409b80d2657fc672e0f12022-12-22T01:27:28ZengMDPI AGMetals2075-47012018-04-018423210.3390/met8040232met8040232Effect of Tempering Temperature on the Low Temperature Impact Toughness of 42CrMo4-V SteelChen Sun0Pai-Xian Fu1Hong-Wei Liu2Hang-Hang Liu3Ning-Yu Du4Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, ChinaInstitute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, ChinaInstitute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, ChinaInstitute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, ChinaInstitute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, ChinaEffects of tempering temperature on the microstructures and low temperature impact toughness of 42CrMo4-V steel were investigated. Microstructures of 42CrMo4-V steel after tempering at 570–720 °C for 3 h were experimentally investigated using scanning electron microscopy (SEM), electron back-scattered diffraction (EBSD), transmission electron microscopy (TEM) and X-ray diffraction (XRD). The results showed that the carbide precipitation sequence of 42CrMo4-V steel is M8C7 → M3C and the absorbed energies of 42CrMo4-V steel increase greatly from 21.7 J to 132.3 J with increasing tempering temperature from 570 °C to 720 °C. The changes of impact toughness with increasing tempering temperature were attributed to the softening of matrix, the evolution of carbide precipitates and grain structures.http://www.mdpi.com/2075-4701/8/4/23242CrMo4-V steelvanadiumtempering temperaturecarbide precipitateslow temperature impact toughness |
| spellingShingle | Chen Sun Pai-Xian Fu Hong-Wei Liu Hang-Hang Liu Ning-Yu Du Effect of Tempering Temperature on the Low Temperature Impact Toughness of 42CrMo4-V Steel Metals 42CrMo4-V steel vanadium tempering temperature carbide precipitates low temperature impact toughness |
| title | Effect of Tempering Temperature on the Low Temperature Impact Toughness of 42CrMo4-V Steel |
| title_full | Effect of Tempering Temperature on the Low Temperature Impact Toughness of 42CrMo4-V Steel |
| title_fullStr | Effect of Tempering Temperature on the Low Temperature Impact Toughness of 42CrMo4-V Steel |
| title_full_unstemmed | Effect of Tempering Temperature on the Low Temperature Impact Toughness of 42CrMo4-V Steel |
| title_short | Effect of Tempering Temperature on the Low Temperature Impact Toughness of 42CrMo4-V Steel |
| title_sort | effect of tempering temperature on the low temperature impact toughness of 42crmo4 v steel |
| topic | 42CrMo4-V steel vanadium tempering temperature carbide precipitates low temperature impact toughness |
| url | http://www.mdpi.com/2075-4701/8/4/232 |
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