Order-disorder phase transition in Ni4W alloy |
| |
Authors: | É V Kozlov V M Kushnarenko D M Shtern |
| |
Institution: | (1) Tomsk Civil Engineering Institute, USSR |
| |
Abstract: | The order-disorder phase transition in Ni4W alloy with a D1
a
superlattice was studied experimentally by x-ray structural analysis and theoretically by the Green function method. An experimental temperature dependence was obtained for the equilibrium parameter of long-range order for Ni4W alloy. It was established that the order-disorder phase transition in the alloy is a first-order transition; the transition occurs through the two-phase region D1a + A1. The Green function technique, with account for the pair-correlation functions, was used to describe the order-disorder transition for the D1
a
superlattice. The theoretical temperature dependence obtained for the equilibrium parameter of long-range order is in satisfactory agreement with the experimental curve.Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 4, pp. 92–97, April, 1978. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|