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Studying the Phase Transformation Kinetics of the U–6Nb Alloy Using NMR Methods
Physics of Metals and Metallography ( IF 1.2 ) Pub Date : 2020-09-01 , DOI: 10.1134/s0031918x20070078
V. V. Ogloblichev , Yu. N. Zuev , S. V. Verkhovskii , S. V. Bondarchuk , A. Yu. Germov , I. L. Svyatov , Z. N. Volkova , A. P. Gerashenko

Abstract

The inhomogeneous magnetic state arising from isothermal aging of the rapidly quenched U–6Nb alloy (6.3 wt % or 14 at % niobium) was studied for the first time using nuclear magnetic resonance of the 93Nb nucleus. In the process of phase transformation during isothermal annealing at Тan = 500°C, the fraction of niobium atoms in the bulk of the alloy increases in regions with a magnetic susceptibility corresponding to the alloys U1–хNbх (х > 0.14). It is shown that the process of isothermal transformation, accompanied by the formation of niobium-enriched structural precipitates, is fully completed after 60 hours.



中文翻译:

用NMR方法研究U-6Nb合金的相变动力学

摘要

利用93 Nb核的核磁共振首次研究了由快速淬火的U-6Nb合金(6.3 wt%或14 at%铌)的等温时效引起的不均匀磁态。在相变中的等温退火过程中的加工Т一个= 500℃,铌原子的大头在区域中的合金的增加与对应于合金U A磁化率馏分1 хх > 0.14) 。结果表明,等温转变过程伴随着富铌结构沉淀的形成,在60小时后就完全完成了。

更新日期:2020-09-01
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