Control of the Distribution of Vacuum Arcs Within Vacuum Arc Remelting with Externally Applied Magnetic Fields
Control of the Distribution of Vacuum Arcs Within Vacuum Arc Remelting with Externally Applied Magnetic Fields
复制标题
外加磁场真空电弧重熔过程中真空电弧分布的控制
DOI:
10.1007/978-3-030-36540-0_25
复制
发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Motley, Joshua
中科院分区:
文献类型:
--
作者:
King, Paul E.;Cibula, Matthew;Motley, Joshua
Ampere Scientific has previously developed and provided industrial validation of theVARmetricTMmeasurement system to measure the location of electric arcs during vacuum arc remelting (VAR) of high temperature specialty alloys. With the advent ofVARmetricTM, it is now possible to continuously monitor and control arc distributions in order to tailor the heat flux that drives solidification during the VAR process. Laboratory experiments have applied transverse magnetic fields to generate specified Lorentz forces as a control mechanism across the arc gap in order to drive arc locations to predetermined distributions. This type of control makes it possible to react to undesirable arc conditions during VAR operations or to provide a continuous control to specify a thermal profile for heat input to the melt pool necessary for ensuring defect-free ingots.
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2013-12-01
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2004
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期刊:
Metallurgical and Materials Transactions B
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