An Investigation of Strain-Softening Phenomenon in Al-0.1% Mg Alloy during High-Pressure Torsion Processing

被引：1

作者：

Huang, Yi ^{[1
,2
]}

Millet, Justine ^{[3
]}

Zhang, Nian X. ^{[2
]}

Jenei, Peter ^{[4
]}

Gubicza, Jeno ^{[4
]}

Langdon, Terence G. ^{[2
]}

机构：

[1] Bournemouth Univ, Fac Sci & Technol, Dept Design & Engn, Poole BH12 5BB, Dorset, England

[2] Univ Southampton, Dept Mech Engn, Mat Res Grp, Southampton SO17 1BJ, Hants, England

[3] Grenoble INP Minatec, Phelma Sch Engn Phys Elect & Mat, 3 Parvis Louis Neel,BP 257, F-38016 Grenoble, France

[4] Eotvos Lorand Univ, Dept Mat Phys, POB 32, H-1518 Budapest, Hungary

来源：

ADVANCED ENGINEERING MATERIALS | 2020年 / 22卷 / 10期

基金：

欧洲研究理事会;

关键词：

Al-0; 1% Mg alloys; hardness; high-pressure torsion; microstructures; X-ray; MICROSTRUCTURAL EVOLUTION; HARDNESS EVOLUTION; ANNEALING TWINS; PURE ALUMINUM; HOMOGENEITY; TEMPERATURE; DEFORMATION; RECRYSTALLIZATION; STRENGTH; EXAMINE;

D O I：

10.1002/adem.201901578

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An Al-0.1% Mg alloy is processed by high-pressure torsion (HPT) at room temperature. The Al-0.1% Mg alloy displays strain-softening phenomenon through hardness evolution: the hardness values in the disc center area are higher than at the disc edge area after 1/2, 1, and 3 turns, and the size of the hard region in the disc center gradually reduces as the number of turns increases from 1/2 to 3 turns. The hardness values evolve toward homogeneity along the disc diameters after 5 and 10 turns. Electron backscatter diffraction (EBSD) and X-ray line profile analysis suggest that the lower hardness values at the disc edge area in the Al-0.1% Mg alloy are related to a recovery/recrystallization mechanism where the material is subjected to heavy straining.

引用

页数：7

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