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| Effect of Smelting Process on Microstructure and Mechanical Property of H13 Steel |
| LIU Zhen-tian1，ZHOU Jian2,MA Dang-shen2,QIU Li-peng1,LIU Bao-shi1 |
1. Dongbei Special Steel Group Co., Ltd., Fushun 113001, Liaoning, China
2. Institute for Structural Materials, Central Iron and Steel Research Institute, Beijing 100081, China |
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Abstract Effect of such two different smelting process as “Vacuum Induction Furnace (VIF)+ Electroslag Remelting (ESR), Electric Furnace(EF)+LF+VD” of special steel on microstructure and mechanical property of H13 molds was studied. The results show that the process of VIF+ESR has some effects on increasing of the cleanliness, decrease of S, P and segregation in H13, which can enhance the transversal impact toughness to some extent in the core of H13 steel. The increase of impact toughness is restricted by a large number of primary carbides in microstructure of H13 steel.
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Received: 23 May 2012
Published: 18 April 2013
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2013, Vol. 48 
