Orientation Dependence of the Micro-Pillar Compression Strength in an Electron Beam Melted Ti–6Al–4V Alloy

Tian，Jinsen1; Ma，Jiang1; Yan，Ming2; Chen，Zhuo3; Shen，Jun1; Wu，Jing4

2020

10.1007/s40195-020-01162-5

Acta Metallurgica Sinica-English Letters   影响因子和分区

1006-7191

2194-1289

An α/β two-phase Ti–6Al–4V alloy was fabricated by electron beam melting to obtain a basketweave structure. The orientation dependence of the mechanical properties of Ti–6Al–4V alloy was studied by micro-pillar compression and post-mortem transmission electron microscopy analysis. The results indicate that different grains have different mechanical responses, and the possible attributions were discussed. Besides the orientation effect, due to the limited volumes of micropillars, the size of the α phases, dispersion of the β phases, and the presence of the free dislocation path also affect the mechanical properties of the micropillars to a large extent. Although no direct link was discovered between the mechanical properties and the parent β orientations, this work provided a promising method to further study the anisotropic mechanical behavior in Ti–6Al–4V alloy.

Electron beam melting (EBM) Mechanical properties Micro-pillar compression Orientation dependence Ti–6Al–4V

SCI ; EI

英语

其他

Metallurgy & Metallurgical Engineering

Metallurgy & Metallurgical Engineering

WOS:000588588000002

CHINESE ACAD SCIENCES, INST METAL RESEARCH

20204609486095

Electron beams ; Electrons ; 3D printers ; High resolution transmission electron microscopy

Optical Devices and Systems:741.3 ; Printing Equipment:745.1.1

2-s2.0-85095845824

Scopus

1.College of Mechatronics and Control Engineering,Shenzhen University,Shenzhen,518060,China
2.Department of Materials Science and Engineering and Shenzhen Key Laboratory for Additive Manufacturing of High-Performance Materials,Southern University of Science and Technology,Shenzhen,518055,China
3.Aerospace Hiwing (Harbin) Titanium Industrial Co.,Ltd.,Harbin,150028,China
4.Cryo-EM Center,Southern University of Science and Technology,Shenzhen,518055,China

Tian，Jinsen,Ma，Jiang,Yan，Ming,等. Orientation Dependence of the Micro-Pillar Compression Strength in an Electron Beam Melted Ti–6Al–4V Alloy[J]. Acta Metallurgica Sinica-English Letters,2020,34(4):476-484.

Tian，Jinsen,Ma，Jiang,Yan，Ming,Chen，Zhuo,Shen，Jun,&Wu，Jing.(2020).Orientation Dependence of the Micro-Pillar Compression Strength in an Electron Beam Melted Ti–6Al–4V Alloy.Acta Metallurgica Sinica-English Letters,34(4),476-484.

Tian，Jinsen,et al."Orientation Dependence of the Micro-Pillar Compression Strength in an Electron Beam Melted Ti–6Al–4V Alloy".Acta Metallurgica Sinica-English Letters 34.4(2020):476-484.