日本金属学会誌

J. Japan Inst. Metals, Vol. 21, No. 5 (1957),
pp. 325-329

Experimental Studies on the Formation of Superlattice in FeCo Alloy (5th Report). On X-ray Investigation (2)

Tohru Yokoyama


Abstract:

It has been discovered that in two-step-quenching the origin of the so-called 550° change occurs not only at 550° but also at a temperature considerably lower. On the measurement of ordered degree by a Geiger-counter X-ray diffractometer, it has been proved that FeCo alloy begins to be ordered at 730°, and the ordered degree suddenly increases at 550°. And this phenomenon corresponds to the presumption based on the results of measurements of all the other properties.


(Received 1956/5/4)

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