Effect of Pulsed Frequency on Microstructure and Microhardness of WC-13Ni Cemented Carbide Irradiated by Intense Pulsed Electron Beam AITranslate
Abstract AITranslate
The effect of pulsed frequency on microstructure and microhardness of WC-13 Ni cemented carbide irradiated by intense pulsed electron beam(IPEB) was investigated by scanning electron microscope,surface profiler,X-ray diffractometer and Vickers microhardness tester.The results show that at a lower energy density of 3 J/cm^2,the increase of pulse frequency enhances the cumulative effect of thermal shock of IPEB irradiation,resulting in an increase in the number of thermal erosion pits and the content of Ni phase on the surface of the cemented carbide,the surface roughness slowly increasing,and the hardness decreasing at first and then slowly increasing.At a higher energy density of 13 J/cm^2, the increase of pulse frequency enhances the cumulative effect of surface remelting of IPEB irradiation,resulting in an increase in the number and size of ablated holes and the content of WC1-x and W2C phases on the surface of the cemented carbide. At the same time,the surface roughness and microhardness increase at first and then decrease.When the pulse frequency is 1 Hz,the surface microhardness reaches the maximum of 1 380 HV0.2.
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DOI：
Chinese Library Classification Number:TG135.5[一般工业技术—材料科学与工程]
Citation Information:
The effect of pulsed frequency on microstructure and microhardness of WC-13 Ni cemented carbide irradiated by intense pulsed electron beam(IPEB) was investigated by scanning electron microscope,surface profiler,X-ray diffractometer and Vickers microhardness tester.The results show that at a lower energy density of 3 J/cm^2,the increase of pulse frequency enhances the cumulative effect of thermal shock of IPEB irradiation,resulting in an increase in the number of thermal erosion pits and the content of Ni phase on the surface of the cemented carbide,the surface roughness slowly increasing,and the hardness decreasing at first and then slowly increasing.At a higher energy density of 13 J/cm^2, the increase of pulse frequency enhances the cumulative effect of surface remelting of IPEB irradiation,resulting in an increase in the number and size of ablated holes and the content of WC1-x and W2C phases on the surface of the cemented carbide. At the same time,the surface roughness and microhardness increase at first and then decrease.When the pulse frequency is 1 Hz,the surface microhardness reaches the maximum of 1 380 HV0.2.
quote
| GB/T 7714-2015 | [1] ZHANG Feng-gang. Effect of Pulsed Frequency on Microstructure and Microhardness of WC-13Ni Cemented Carbide Irradiated by Intense Pulsed Electron Beam[J]. Rare Metals and Cemented Carbides, 2019(5): 74-78. |
| MLA | [1] ZHANG Feng-gang. "Effect of Pulsed Frequency on Microstructure and Microhardness of WC-13Ni Cemented Carbide Irradiated by Intense Pulsed Electron Beam." Rare Metals and Cemented Carbides, no. 5, 2019, pp. 74-78. |
| APA | [1] ZHANG Feng-gang. (2019). Effect of Pulsed Frequency on Microstructure and Microhardness of WC-13Ni Cemented Carbide Irradiated by Intense Pulsed Electron Beam. Rare Metals and Cemented Carbides(5), 74-78. |
| IEEE | [1] ZHANG Feng-gang, "Effect of Pulsed Frequency on Microstructure and Microhardness of WC-13Ni Cemented Carbide Irradiated by Intense Pulsed Electron Beam," Rare Metals and Cemented Carbides, no. 5, pp. 74-78, 2019. keywords: {WC-13Ni cemented carbide;intense pulsed electron beam;irradiation;pulsed frequency;microstructure;microhardness} |