Enhanced Cutting Performance of 50Cr15MoV Martensitic Stainless Steel Through Controlled Residual Austenite Stability
The relationship between the stability of tool materials and their cutting performance is a critical technical challenge for the manufacturing industry, which is essential for selecting appropriate treatment processes to achieve superior treatment tool performance. In this paper, a standard cutting...
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MDPI AG
2025-01-01
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| author | Fujian Guo Zhimin Peng Guangyi Lu Wenle Liu Guoqing Li Pan Zhang Chengjia Shang |
| author_facet | Fujian Guo Zhimin Peng Guangyi Lu Wenle Liu Guoqing Li Pan Zhang Chengjia Shang |
| author_sort | Fujian Guo |
| collection | DOAJ |
| description | The relationship between the stability of tool materials and their cutting performance is a critical technical challenge for the manufacturing industry, which is essential for selecting appropriate treatment processes to achieve superior treatment tool performance. In this paper, a standard cutting tool experiment was used to study the sharpness of the knife with different residual austenite content. The cutting edges of the knife were characterized by an optical microscope (OM), scanning electron microscope (SEM), electron back scattering diffraction (EBSD), and transmission electron microscope (TEM), to analyze the relationship between tool edge hardness and microstructure. The microstructure stability of the material was analyzed by a separated Hopkinson pressure bar (SHPB) experiment. The results show that the hardness and cutting performance of the knives are affected by the joint action of carbide and residual austenite, with an initial increase followed by decreases as the heat treatment quenching temperature increases. After the knife material is treated by cryogenic process, the hardness of the knife is increased by 3.89 HRC, the initial sharpness by 15.3%, and the sharpness and durability by 18.8%. The residual austenite in the knives was found to be unstable and easy to transformation during high-rate deformation processes. This study elucidates the effect of residual austenite content on the sharpness of the knives, providing a foundation for the reasonable control of residual austenite content in the actual production settings. |
| format | Article |
| id | doaj-art-c38f01a9b2e9483283f96760acee8b6f |
| institution | Kabale University |
| issn | 2075-4701 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
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| series | Metals |
| spelling | doaj-art-c38f01a9b2e9483283f96760acee8b6f2025-01-24T13:41:40ZengMDPI AGMetals2075-47012025-01-011519510.3390/met15010095Enhanced Cutting Performance of 50Cr15MoV Martensitic Stainless Steel Through Controlled Residual Austenite StabilityFujian Guo0Zhimin Peng1Guangyi Lu2Wenle Liu3Guoqing Li4Pan Zhang5Chengjia Shang6School of Materials Science and Engineering, Guangdong Ocean University, Yangjiang 529500, ChinaYangjiang Advanced Alloys Laboratory, Guangdong Ocean University, Yangjiang 529500, ChinaYangjiang Advanced Alloys Laboratory, Guangdong Ocean University, Yangjiang 529500, ChinaYangjiang Advanced Alloys Laboratory, Guangdong Ocean University, Yangjiang 529500, ChinaYangjiang Advanced Alloys Laboratory, Guangdong Ocean University, Yangjiang 529500, ChinaSchool of Materials Science and Engineering, Guangdong Ocean University, Yangjiang 529500, ChinaYangjiang Advanced Alloys Laboratory, Guangdong Ocean University, Yangjiang 529500, ChinaThe relationship between the stability of tool materials and their cutting performance is a critical technical challenge for the manufacturing industry, which is essential for selecting appropriate treatment processes to achieve superior treatment tool performance. In this paper, a standard cutting tool experiment was used to study the sharpness of the knife with different residual austenite content. The cutting edges of the knife were characterized by an optical microscope (OM), scanning electron microscope (SEM), electron back scattering diffraction (EBSD), and transmission electron microscope (TEM), to analyze the relationship between tool edge hardness and microstructure. The microstructure stability of the material was analyzed by a separated Hopkinson pressure bar (SHPB) experiment. The results show that the hardness and cutting performance of the knives are affected by the joint action of carbide and residual austenite, with an initial increase followed by decreases as the heat treatment quenching temperature increases. After the knife material is treated by cryogenic process, the hardness of the knife is increased by 3.89 HRC, the initial sharpness by 15.3%, and the sharpness and durability by 18.8%. The residual austenite in the knives was found to be unstable and easy to transformation during high-rate deformation processes. This study elucidates the effect of residual austenite content on the sharpness of the knives, providing a foundation for the reasonable control of residual austenite content in the actual production settings.https://www.mdpi.com/2075-4701/15/1/95residual austenite stabilitycutting performanceSHPBfault substructure |
| spellingShingle | Fujian Guo Zhimin Peng Guangyi Lu Wenle Liu Guoqing Li Pan Zhang Chengjia Shang Enhanced Cutting Performance of 50Cr15MoV Martensitic Stainless Steel Through Controlled Residual Austenite Stability Metals residual austenite stability cutting performance SHPB fault substructure |
| title | Enhanced Cutting Performance of 50Cr15MoV Martensitic Stainless Steel Through Controlled Residual Austenite Stability |
| title_full | Enhanced Cutting Performance of 50Cr15MoV Martensitic Stainless Steel Through Controlled Residual Austenite Stability |
| title_fullStr | Enhanced Cutting Performance of 50Cr15MoV Martensitic Stainless Steel Through Controlled Residual Austenite Stability |
| title_full_unstemmed | Enhanced Cutting Performance of 50Cr15MoV Martensitic Stainless Steel Through Controlled Residual Austenite Stability |
| title_short | Enhanced Cutting Performance of 50Cr15MoV Martensitic Stainless Steel Through Controlled Residual Austenite Stability |
| title_sort | enhanced cutting performance of 50cr15mov martensitic stainless steel through controlled residual austenite stability |
| topic | residual austenite stability cutting performance SHPB fault substructure |
| url | https://www.mdpi.com/2075-4701/15/1/95 |
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