Effect of the fraction and direction of high-pressure torsion deformation in a Bridgman cell on the structure and mechanical properties of commercial-purity iron

被引：4
作者：
Glezer A.M. [1 ,2 ,3 ]
Tomchuk A.A. [1 ,2 ]
Rassadina T.V. [2 ]
机构：
[1] Bardin Central Research Institute of Nonferrous Metallurgy TsNIIchermet, Moscow
[2] Moscow State University of Instrument Engineering and Computer Science, Moscow
[3] National University of Science and Technology MISiS, Moscow
来源：
Russian Metallurgy (Metally) | 2015年 / 2015卷 / 04期
基金：
俄罗斯基础研究基金会;
关键词：
Dynamic Recrystallization; Severe Plastic Deformation; RUSSIAN Metallurgy; Misorientation Angle; Deforma Tion;
D O I：
10.1134/S0036029515040059
中图分类号：
学科分类号：
摘要：
The effect of the fraction and the scheme of deformation under high quasi-hydrostatic pressure in a Bridgman cell at room temperature and on the structure and the microhardness of commercial-purity iron is studied. Deformation is performed by one continuous or portioned loading to the same total strain. The number of cycles and the direction of rotation of the lower movable anvil are varied. It is determined that the number of revolutions and the direction of rotation considerably affect the sizes of the deformation-induced fragments and the recrystallized grains formed upon megaplastic deformation. The correlation between the structure parameters and the microhardness is analyzed. © 2015, Pleiades Publishing, Ltd.
引用
收藏
页码：295 / 300
页数：5
相关论文
共 8 条
  • [1] Honeycombe R., Plastic Deformation of Metals, (1972)
  • [2] Estrin Y., Vinogradov A., Extreme grain refinement by severe plastic deformation: a wealth of challenging science, Acta Mater., 61, pp. 782-817, (2013)
  • [3] Beygelzimer Y., Grain refinement versus voids accumulation during severe plastic deformation of polycrystals: mathematical simulation, Mech. Mater., 37, pp. 753-767, (2005)
  • [4] Zhilyaev A.P., Langdon T.G., Using high-pressure torsion for metal processing: fundamentals and applications, Prog. Mater. Sci., 53, pp. 893-979, (2008)
  • [5] Bykov V.M., Likhachev V.A., Nikonov Y.A., Et al., Fragmentation and dynamic recrystallization in copper at large and very large plastic deformations, Fiz. Met. Metalloved., 45, 1, pp. 163-169, (1978)
  • [6] Glezer A.M., Metlov L.S., Physics of megaplastic (severe) deformation in solids, Physics of the Solid State, 52, 6, pp. 1162-1169, (2010)
  • [7] Rybin V.V., Severe Plastic Deformation and Fracture of Metals, (1986)
  • [8] Humphreys F.J., Hatherly M., Recrystallization and Related Annealing Phenomena, (2004)
1