Young's modulus and the Delta E effect of Fe-Pd Invar alloys have been investigated. The Delta E effect at room temperature exhibited a similar concentration dependence of the longitudinal linear magnetostriction. The temperature dependence of Young's modulus was analogous to that of Fe-Ni and Fe-Pt Invar alloys, namely Young's modulus increased below the Curie temperature with increasing temperature. The variation of Young's modulus at room temperature with Pd content showed a minimum around 30% Pd.
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Nakayama et al. (1980) studied this question.
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