|
|
|
| An innovative method for calibrating local cooling rate in electroslag remelting of M42 high-speed steel |
| Wan-ming Li1, Shi-chao Jiao1, Wen-jie Tong1, Xi-min Zang1, De-jun Li2, Zhou-hua Jiang3, Hua-bing Li3, Yu-an Jing1 |
1 School of Material and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, Liaoning, China
2 State Key Laboratory of Marine Engineering,Anshan 114051, Liaoning, China
3 School of Metallurgy, Northeastern University,Shenyang 110819, Liaoning, China |
|
|
|
|
Abstract The determination of the local cooling rate has a great significance in optimizing the parameters of electroslag remelting (ESR) and improving the quality of the ingots. An innovative method was proposed for calibrating the local cooling rate of M42 high-speed steel (HSS) in the ESR process. After resolidification at different cooling rates under high-temperature laser confocal microscopy, the carbide network spacing of the specimen was observed using a scanning electron microscope. A functional relationship between the cooling rate and average carbide network spacing was established. The average local cooling rate of the solidification process of the M42 HSS ingot was calibrated. The results show that the higher the cooling rate, the smaller the network spacing of the carbides. For the steel ingot with a diameter of 360 mm, the average local cooling rate was 0.562 °C/s at the surface, 0.057 °C/s at the position of 0.25D (where D is the diameter of the ingot), and 0.046 °C/s at the center of the ingot.
|
|
Received: 26 May 2020
Published: 25 August 2021
|
|
|
|
| Cite this article: |
|
Wan-ming Li,Shi-chao Jiao,Wen-jie Tong, et al. An innovative method for calibrating local cooling rate in electroslag remelting of M42 high-speed steel[J]. Journal of Iron and Steel Research International, 2021, 28(8): 990-996.
|
|
|
|
| [1] |
WANG Qiang1,2，WANG Fang3，HE Zhu1,2，LI Guangqiang1,2，LI Baokuan3. Development of numerical simulation in electroslag metallurgy[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2021, 33(8): 681-694. |
| [2] |
YU Xinhao1，WANG Ao2，LIU Fubin1，JIANG Zhouhua1，LI Huabing1，GENG Xin1. Numerical simulation of effects of currents on multifield coupling behavior and solidification parameters during electroslag remelting process[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2021, 33(8): 744-751. |
| [3] |
ZHAN Dongping1，QU Lexin1，WANG Dongwei1，JIANG Zhouhua1，ZHANG Huishu2. Effect of Y2O3bearing ESR slag on microstructure and properties of CLAM steel[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2021, 33(8): 801-806. |
| [4] |
AN Rui-dong, LIU Fu-bin, CHEN Kui, GAO Jun-zhe, KANG Cong-peng, JIANG Zhou-hua. CAFE simulation of electroslag remelting GH984G directional solidification structure[J]. Iron and Steel, 2021, 56(5): 56-64. |
| [5] |
WU Bingbing,ZENG Zhiwei,DENG Fanlin,JIAO Guangsheng,WANG Junzhao. Cracking analysis of stainless steel flange for pipeline gas transmission in a chemical plant[J]. PHYSICS EXAMINATION AND TESTING, 2021, 39(4): 42-. |
| [6] |
YOU Zhiqiang1,2,3，HOU Tingping1,2,3，LIN Hengfu1,2,3，WU Kaiming1,2,3. Magnetism and magnetomagnetic properties of alloy carbide M23C6[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2021, 33(4): 322-329. |
|
|
|
|
2021, Vol. 28 
