Antiferromagnetic Elinvar-Type Alloys in the Mn–Cu–W System

temperature is at a little variance between the states of annealing, cold working and water quenching, but its value has a tendency to increase with increase in Mn or W content. The temperature coefficient of Young's modulus differs greatly by the processes of annealing, cold working, water quenching and reheating after cold working or water quenching; the value undergoes a remarkable variation with composition, also. The presence of a large positive maximum on each of the temperature coefficient of Young's modulus vs composition curves indicates the Elinvar characteristics of the ternary alloys. The rigidity modulus and its temperature coefficient at room temperature show a very similar variation to that of Young's modulus and its temperature coefficient for the composition, heat treatment and cold working. In