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首页> 外文期刊>Journal of Materials Science >The effect of VAR process parameters on white spot formation in INCONEL1 718
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The effect of VAR process parameters on white spot formation in INCONEL1 718

机译:VAR工艺参数对INCONEL1 718中白点形成的影响

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摘要

A 20 inch diameter VAR ingot of Inconel 718 was produced at Special Metals Wiggin Limited (Hereford) under conditions of abnormally long arc gap. It was sectioned and analyzed in the as-cast state. White spots were found, along with unusual macrostructural features at the ingot surface. The experimental results are presented and discussed in relation to possible formation mechanisms, and it is shown that the level of niobium found in these white spots was too low to be explained by conventional mechanisms of formation. (C) 2004 Kluwer Academic Publishers.
机译:在异常长的电弧间隙条件下,由Special Metals Wiggin Limited(赫里福德)生产了直径20英寸的Inconel 718 VAR锭。在铸造状态下对其进行了剖切和分析。发现白点,以及铸锭表面异常的宏观结构特征。给出并讨论了与可能的形成机理有关的实验结果,结果表明,在这些白斑中发现的铌含量太低,无法用常规的形成机理加以解释。 (C)2004 Kluwer学术出版社。

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