Effect of Chromium Content on the Thermal Stability of Single-Phase Submicrocrystalline Ni-Cr Alloys

被引：0
|
作者：
Karamyshev, K. Yu. [1 ]
Voronova, L. M. [1 ]
Chashchukhina, T. I. [1 ]
Degtyarev, M. V. [1 ]
机构：
[1] Russian Acad Sci, Mikheev Inst Met Phys, Ural Branch, Ekaterinburg 620108, Russia
来源：
PHYSICS OF METALS AND METALLOGRAPHY | 2024年 / 125卷 / 09期
关键词：
nickel-chromium alloy; SMC structure; recrystallization; thermal stability; RECRYSTALLIZATION; NICKEL;
D O I：
10.1134/S0031918X24601197
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The thermal stability of single-phase Ni-Cr alloys (with 2, 5, and 12.5 at % Cr), in which the submicrocrystalline (SMC) structure is formed by high-pressure torsion, is studied. Annealing-induced variations of the hardness and grain size, and changing the uniformity of recrystallized structure are analyzed. The alloying of nickel with chromium increases the temperature of the onset of recrystallization of deformed alloy by 150-250 degrees C and temperature of the onset of active grain growth by 200-400 degrees C in accordance with the increase in the chromium content. The recrystallization of the studied SMC alloys develops via the priority growth of individual nuclei. The increase in the chromium content in the alloys from 2 to 12.5% favors the decrease in the grain size and increase in the size uniformity of the recrystallized structure.
引用
收藏
页码：948 / 955
页数：8
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