Abstract
A STEEL wire was suspended in a solenoid which was excited by direct current. Embracing the wire at the central part of the solenoid was a search coil of 4,000 turns in circuit with a ballistic galvanometer of long period of swing. When a load was applied to the wire a throw of the galvanometer was obtained and the magnitude of the change of flux linkages corresponding to this throw was found to be related to the magnetising force of the solenoid by a curve such as that shown in Fig. 1. It will be seen that this curve passes through a maximum value and also that there are two values of the magnetising force for which the change of flux linkages is zero. For each value of the applied load, a curve such as that shown in Fig. 1 was obtained.
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WALL, T. Application of Magneto-Striction Effect to the Observation of Work-Hardening of Steel Wires. Nature 132, 513–514 (1933). https://doi.org/10.1038/132513b0
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DOI: https://doi.org/10.1038/132513b0
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