Impact Toughness of Spring Steel after Bainite and Martensite Transformation
It has been reported that a multiphase microstructure with bainite, martensite, and retained austenite obtained by austempering, or quenching and tempering of spring steel containing Si, Mn, and Cr exhibits high strength and ductility. However, little research has been conducted on the bainite forma...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-02-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/12/2/304 |
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| author | Min-Soo Suh Seung-Hoon Nahm Chang-Min Suh No-Keun Park |
| author_facet | Min-Soo Suh Seung-Hoon Nahm Chang-Min Suh No-Keun Park |
| author_sort | Min-Soo Suh |
| collection | DOAJ |
| description | It has been reported that a multiphase microstructure with bainite, martensite, and retained austenite obtained by austempering, or quenching and tempering of spring steel containing Si, Mn, and Cr exhibits high strength and ductility. However, little research has been conducted on the bainite formation and impact fracture behavior of next-generation spring steel from the perspective of engineering and industrial applications. The microstructural transformation characteristics of bainite and martensite related to the heat treatment cycle on the maker side were quantitatively analyzed using electron backscatter diffraction (EBSD) and scanning electron microscopy (SEM) analyses. Moreover, the effects and mechanical properties of bainite and martensite formation in response to changes in lath length and width were studied and analyzed. That is, to obtain the mechanical properties of spring steel with the highest quality, tensile and impact specimens, whose microstructure and notch shape change according to the heat-treatment cycle, were prepared and studied. |
| first_indexed | 2024-03-09T21:26:52Z |
| format | Article |
| id | doaj.art-b539d8119df044db92007373fe3a17dc |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T21:26:52Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-b539d8119df044db92007373fe3a17dc2023-11-23T21:08:14ZengMDPI AGMetals2075-47012022-02-0112230410.3390/met12020304Impact Toughness of Spring Steel after Bainite and Martensite TransformationMin-Soo Suh0Seung-Hoon Nahm1Chang-Min Suh2No-Keun Park3Korea Institute of Energy Research, Daejeon 34129, Republic of KoreaKorea Research Institute of Standards and Science, Daejeon 34113, Republic of KoreaSchool of Mechanical Engineering, Kyungpook Nat’l University, Daegu 41566, Republic of KoreaSchool of Materials Science and Engineering, Yeungnam University, Gyeongsan 38541, Republic of KoreaIt has been reported that a multiphase microstructure with bainite, martensite, and retained austenite obtained by austempering, or quenching and tempering of spring steel containing Si, Mn, and Cr exhibits high strength and ductility. However, little research has been conducted on the bainite formation and impact fracture behavior of next-generation spring steel from the perspective of engineering and industrial applications. The microstructural transformation characteristics of bainite and martensite related to the heat treatment cycle on the maker side were quantitatively analyzed using electron backscatter diffraction (EBSD) and scanning electron microscopy (SEM) analyses. Moreover, the effects and mechanical properties of bainite and martensite formation in response to changes in lath length and width were studied and analyzed. That is, to obtain the mechanical properties of spring steel with the highest quality, tensile and impact specimens, whose microstructure and notch shape change according to the heat-treatment cycle, were prepared and studied.https://www.mdpi.com/2075-4701/12/2/304spring steelelectron backscatter diffractionbainitemartensiteaustemperinglath |
| spellingShingle | Min-Soo Suh Seung-Hoon Nahm Chang-Min Suh No-Keun Park Impact Toughness of Spring Steel after Bainite and Martensite Transformation Metals spring steel electron backscatter diffraction bainite martensite austempering lath |
| title | Impact Toughness of Spring Steel after Bainite and Martensite Transformation |
| title_full | Impact Toughness of Spring Steel after Bainite and Martensite Transformation |
| title_fullStr | Impact Toughness of Spring Steel after Bainite and Martensite Transformation |
| title_full_unstemmed | Impact Toughness of Spring Steel after Bainite and Martensite Transformation |
| title_short | Impact Toughness of Spring Steel after Bainite and Martensite Transformation |
| title_sort | impact toughness of spring steel after bainite and martensite transformation |
| topic | spring steel electron backscatter diffraction bainite martensite austempering lath |
| url | https://www.mdpi.com/2075-4701/12/2/304 |
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