The use of an antiferromagnetic iron - manganese - alloy

摘要

A temperature-stable strainable member is formed of an antiferromagnetic alloy having a low temperature-coefficient of the modulus of elasticity. The member may be embodied in a mechanical oscillator as a vibratory element with a modulus of elasticity whose temperature coefficient is between -10 . 10-5 and +10 . 10-5 centigrade and which is composed of 20 - 29 percent manganese, 2 - 9 percent chromium, 0.03 - 1 percent carbon, the remainder iron with ordinary impurities less than 1 percent.