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| SOLUBILITY OF NIOBIUM CARBIDE IN A MICROALLOY STEEL |
| by ZHENG Lu; YONG Qilong; SUN Zhenbao (Central Iron and Steel Institute; Ministry of Metallurgical Industry; Beijing) (Manuscript received 29 September; 1985; revised manuscript 8 April 1986) |
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Cite this article:
by ZHENG Lu; YONG Qilong; SUN Zhenbao (Central Iron and Steel Institute; Ministry of Metallurgical Industry; Beijing) (Manuscript received 29 September; 1985; revised manuscript 8 April 1986). SOLUBILITY OF NIOBIUM CARBIDE IN A MICROALLOY STEEL. Acta Metall Sin, 1987, 23(6): 547-552.
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Abstract The solubility of niobium carbide in γ-Fe of a microalloy steel, in which the Nb/C ratio is approximately equal to the stoichimetrie ratio of the carbide, has been determined by means of electrolytic extraction: lg([Nb]·[C]~(0.875))_v=2.97—7500/T±0.06(850—1200℃) The solubilities of it in γ-Fe and α-Fe have also been derived using the latest thermodynamic data, following results were obtained: lg([Nb]·[C]~(0.875))_v=3.24—7150/T(1100—1600K) lg([Nb]·[C]~(0.875))_0=4.87—10060/T(300—1000K)
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Received: 18 June 1987
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