| Study on Factors Affecting the Structure of High SpeedSteel Ingot Produced by ESR |
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| 作者姓名： | Li Zhengbang Che Xiangqian |
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| 摘 要： | ＳｔｕｄｙｏｎＦａｃｔｏｒｓＡｆｆｅｃｔｉｎｇｔｈｅＳｔｒｕｃｔｕｒｅｏｆＨｉｇｈＳｐｅｅｄＳｔｅｅｌＩｎｇｏｔＰｒｏｄｕｃｅｄｂｙＥＳＲＬｉＺｈｅｎｇｂａｎｇ；ＣｈｅＸｉａｎｇｑｉａｎＡｂｓｔｒａｃｔ：Ｔｈｅｉｎｆｌｕｅｎｃｅｏｆｔｈｅｍｅｔａｌｐ...
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Study on Factors Affecting the Structure of High Speed Steel Ingot Produced by ESR |
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| Li Zhengbang, Che Xiangqian.Study on Factors Affecting the Structure of High Speed Steel Ingot Produced by ESR[J].Journal of Iron and Steel Research,1996(1). |
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| Authors: | Li Zhengbang Che Xiangqian |
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| Affiliation: | Li Zhengbang; Che Xiangqian |
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| Abstract: | The influence of the metal pool depth and the local solidification time on the structure of high speed steel ingot produced by electroslag remelting (ESR) process has been studied by measuring the dendritic arm spacing and the size of the carbides. It is shown that the metal pool depth is a factor that influences the uniformity of the ESR ingot structure and not only the dendritic arm spacing, but also the size of the carbides can be influenced by the local solidification time in the solidification process of the ingot. The relationship between the melting rate during ESR process and the local solidification time has been studied. It is shown that there is an optimum melting rate at which the local solidification time is minimum as a result of the combination of the influence of the melt rate on the width of the local mushy zone and on the local solidification rate. The influence of the inoculants on the solidification structure of high speed steel produced by ESR has been studied and it is shown that the size of the grain can be significantly reduced by inoculation process. |
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| Keywords: | high speed steel electroslag remelting carbide network ledeburite size inoculant |
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