The parameters of phase separation in NT-50 alloy calculated from the internal friction kinetics

被引：1
|
作者：
Arzhavitin, VM [1 ]
机构：
[1] Natl Sci Ctr, Kharkov Physicotech Inst, Kharkov, Ukraine
来源：
TECHNICAL PHYSICS LETTERS | 2004年 / 30卷 / 06期
关键词：
Phase Separation; Internal Friction; Experimental Curve; Single Stage; Isothermal Aging;
D O I：
10.1134/1.1773350
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
An analytical expression for the internal friction kinetics Q(-1)(t) in the course of isothermal aging is obtained for a Nb-(48.5 +/- 1.5%)Ti alloy. The numerical analysis of anomalies of the Q(-1)(t) function showed that, during the first three hours of annealing at 300 and 375degreesC, the alpha-Ti phase is separated in a single stage without the formation of intermediate alpha(') alpha(''), or omega phases. Using the experimental curves of Q(-1)(t), the values of parameters (K and n) are determined for the Avrami equation describing the kinetics of alpha-Ti phase separation. (C) 2004 MAIK "Nauka / Interperiodica".
引用
收藏
页码：503 / 506
页数：4
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