Electrical and magnetic techniques for monitoring arc behaviour during VAR of INCONEL1 718: Results from different operating conditions
Electrical and magnetic techniques for monitoring arc behaviour during VAR of INCONEL1 718: Results from different operating conditions
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用于监测 INCONEL1 718 VAR 期间电弧行为的电磁技术：不同操作条件的结果
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
M. Jacobs
中科院分区：
文献类型：
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作者：
R. M. Ward;M. Jacobs
本文介绍了用于检测和解释VAR过程中的电流和磁场的新型仪器和计算机模型。介绍了在不同操作条件下对赫里福德特殊金属Wiggin有限公司生产的20个″直径INCONEL 718钢锭进行VAR过程的结果，并参考宏观结构发现进行了讨论。结果表明，支持的可行性的测量技术，并表明该技术能够检测电弧行为的细微变化。雀斑是在一组实验条件下形成的，结果表明，弧中心的径向位置分布（从磁场分析中获得）可能有助于解释这一点。
Novel instrumentation and computer modelling are described which have been developed to detect and interpret current flows and magnetic fields during VAR. Results from different operating conditions during VAR of 20″ diameter ingots of INCONEL 718 at Special Metals Wiggin Ltd., Hereford are presented and discussed with reference to macrostructural findings. It is shown that the results support the viability of the measurement techniques, and that the techniques are capable of detecting subtle changes in arc behaviour. Freckles were formed under one set of experimental conditions, and it is shown that the distribution of the radial location of the arc centre (obtained from the magnetic field analysis) may help to explain this.