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| SEGREGATION OF S AND P ALONG GRAIN BOUNDARY IN HIGH SPEED STEELS AND CLEANING ACTION OF RE ELEMENTS |
| by LUO Di; XING Guohua (Central Iron and Steel Research Institute; Ministry of Metallurgical Industry; Beijing); ZOU Huiliang; YAN Shensheng; YU Zhizhong; LUO Xinghua (Shanghai Institute of Test Technics) (Manuscript received 20 January; 1982; revised manuscript 3 January; 1983) |
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Cite this article:
by LUO Di; XING Guohua (Central Iron and Steel Research Institute; Ministry of Metallurgical Industry; Beijing); ZOU Huiliang; YAN Shensheng; YU Zhizhong; LUO Xinghua (Shanghai Institute of Test Technics) (Manuscript received 20 January; 1982; revised manuscript 3 January; 1983). SEGREGATION OF S AND P ALONG GRAIN BOUNDARY IN HIGH SPEED STEELS AND CLEANING ACTION OF RE ELEMENTS. Acta Metall Sin, 1983, 19(4): 121-126.
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Abstract The segregation of the impurities, e. g. S, P, along grain boundaries of as-cast structure and of austenite in the high speed steels as well as the cleaning action of RE elements have been studied by AES. It was found that the more S and P the steels contain, the more their segregation occurs. The segregation becomes remarkably improved by the addition of RE elements, and the enrichment of S at grain boundary goes so far as to vanish when the RE added up to 0.05-0.08％. Some discussion on the segregation and the cleaning action have been also made.
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Received: 18 April 1983
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