The effect of aluminum on the regularities of structure refinement in single crystals of Hadfield steel under high-pressure torsion

被引：0
|
作者：
Astafurova, E. G. [1 ]
Tukeeva, M. S. [1 ]
Melnikov, E. V. [1 ]
Kretov, Yu. L. [1 ]
Nikulina, A. A. [1 ]
Velikosel'skaya, A. Yu. [1 ]
机构：
[1] Inst Strength Phys & Mat Sci SB RAS, Akad Sky Ave 2-4, Tomsk 634021, Russia
来源：
OBRABOTKA METALLOV-METAL WORKING AND MATERIAL SCIENCE | 2013年 / 01期
关键词：
Hadfield steel; austenite; twinning; dynamic strain aging; high-pressure torsion;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The regularities of structure refinement in single crystals of Fe-13Mn-1,3C, Fe-13Mn-2,7Al-1,3. (wt. %) austenitic steel were studied after cold high-pressure torsion. Mechanical twinning contributes to a high-strength structural state containing a high density of special (twin) boundaries in steels under HPT. Growth of the stacking fault energy by aluminum alloying reduces the contribution of twinning to the hardening of steel by increasing the distance between the twin boundaries. An additional increase in the dislocation density of Fe-13Mn-1,3C steel was found out in comparison with Fe-13Mn-2,7Al-1,3C steel, which is a consequence of torsion in the temperature range of dynamic strain aging.
引用
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页码：58 / 62
页数：5
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