| 淬火分配处理对高碳钢组织、力学性能和磨损性能的影响 |
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| 作者姓名： | Jian-ping Lai Jia-xin Yu Jiong Wang |
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| 作者单位： | 1)Key Laboratory of Testing Technology for Manufacturing Process in Ministry of Education, Mianyang 621010, China |
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| 基金项目： | This work was supported by the Natural Science Founda-tion of Southwest University of Science and Technology;and the National Natural Science Founda-tion of China |
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| 摘 要： | The present work employed the X-ray diffraction, scanning electron microscopy, electron backscattered diffraction, and electron probe microanalysis techniques to identify the microstructural evolution and mechanical and abrasive behavior of high carbon steel during quenching-partitioning treatment with an aim to enhance the toughness and wear resistance of high carbon steel. Results showed that, with the increase in partitioning temperature from 250 to 400°C, the amount of retained austenite (RA) decreased resulting from the carbide precipitation effect after longer partitioning times. Moreover, the stability of RA generally increased because of the enhanced degree of carbon enrichment in RA. Given the factors affecting the toughness of high carbon steel, the stability of RA associated with size, carbon content, and morphology plays a significant role in determining the toughness of high carbon steel. The analysis of the wear resistance of samples with different mechanical properties shows that hardness is the primary factor affecting the wear resistance of high carbon steel, and the toughness is the secondary one.
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| 关 键 词： | ,,,,, |
Effect of quenching-partitioning treatment on the microstructure,mechanical and abrasive properties of high carbon steel |
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| Jian-ping Lai,Jia-xin Yu,Jiong Wang.Effect of quenching-partitioning treatment on the microstructure,mechanical and abrasive properties of high carbon steel[J].International Journal of Minerals,Metallurgy and Materials,2021,28(4):676-687. |
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| Authors: | Jian-ping Lai Jia-xin Yu Jiong Wang |
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| Abstract: | The present work employed the X-ray diffraction, scanning electron microscopy, electron backscattered diffraction, and electron probe microanalysis techniques to identify the microstructural evolution and mechanical and abrasive behavior of high carbon steel during quenching-partitioning treatment with an aim to enhance the toughness and wear resistance of high carbon steel. Results showed that, with the increase in partitioning temperature from 250 to 400°C, the amount of retained austenite (RA) decreased resulting from the carbide precipita-tion effect after longer partitioning times. Moreover, the stability of RA generally increased because of the enhanced degree of carbon enrich-ment in RA. Given the factors affecting the toughness of high carbon steel, the stability of RA associated with size, carbon content, and mor-phology plays a significant role in determining the toughness of high carbon steel. The analysis of the wear resistance of samples with different mechanical properties shows that hardness is the primary factor affecting the wear resistance of high carbon steel, and the toughness is the sec-ondary one. |
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| Keywords: | high carbon steel quenching and partitioning microstructural evolution retained austenite |
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