|
|
|
| Study on Electromagnetic Continuous Casting of W9 High Speed Steel |
| FENG Mingjie,WANG Engang,ZHAN Guofeng,JIANG Zaiwei,HE Jicheng |
| Key Laboratory of National Education Ministry for Electromagnetic Processing of Materials, Northeastern University, Shenyang 110004, Liaoning, China |
|
|
|
|
Abstract The electromagnetic billet casting technology and solidification structure of W9 high speed steel billet were studied. The type and distribution of eutectic carbides in traditional mold cast ingot and electromagnetic cast billet of W9 were compared, the thickness of ledeburite net and solidification cooling rate were measured. The results indicate that electromagnetic cast billet has smooth surface, shallow oscillation marks, good shape, dense structure without defects. The electromagnetic continuous casting can refine grains, carbides and ledeburite web, promote precipitation of M2C and MC carbides and reduce M6C precipitation. The metallurgical quality of electromagnetic continuous cast billet is much better because the calculated cooling rate was 3.4×104 K/s at periphery, 6.5×103 K/s for r/2 and 3.9×102 K/s at center of billet.
|
|
Received: 01 January 1900
|
|
|
|
| [1] |
HE Ya-yuan,LI Li-wei,YIN Yun-yang,DENG Zhao-jun. Evolution of microstructure and properties of thickness section of wearresistant steel[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(6): 512-518. |
| [2] |
ZHANG Ke,YE Xiao-yu,LI Zhao-dong,SUN Xin-jun,HUANG Zhenyi. Microstructure and properties of continuous cooling transformation of TiMo ferritic high strength steel[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2019, 31(8): 733-740. |
| [3] |
LIU Xuhui，LI Guanghui，LIU Zhenyu. Effects of cooling process on microstructure and #br# mechanical properties in a V-Ti bearing steel[J]. Iron and Steel, 2019, 54(7): 77-82. |
| [4] |
ZHANG Hai-jun, DU Wen-hua, XIN Dong-mei. Effects of spray forming and powder metallurgy on microstructureand property of 2030 steels[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2019, 31(4): 400-406. |
| [5] |
ZHOU Cheng， ZHAO Tan， ZHU Long-hao，JIN Yao-hui， LI Jia-an. Effect of TMCP on microstructure evolution and mechanical properties of low-carbon Ni-Nb steel[J]. Iron and Steel, 2019, 54(4): 68-72. |
| [6] |
SU Chang-shui，WANG Xiao-dong，ZHOU Xun， XIAO Fu-ren. In-situo bservation of the surface oxidation behaviours of a highspeed steel roll[J]. PHYSICS EXAMINATION AND TESTING, 2019, 37(4): 1-5. |
|
|
|
|
2008, Vol. 43 
