Revealing the martensitic variant selection in metastable beta titanium alloy Ti–10V–2Fe–3Al under heterogeneous deformation

Xiao，J. F.1,2; Shang，X. K.1; Zhang，J. Q.1; Li，Y.1; Wen，B.1; Guan，Q. W.1; He，B. B.1

2023-06-15

10.1016/j.msea.2023.145181

Materials Science and Engineering A   影响因子和分区

0921-5093

1873-4936

As an important deformation mode for the mechanical responses of titanium (Ti) alloys, the martensitic transformation has earned enormous interest, for example, the variant selection, under macro uniaxial stress by tension or compression. However, the variant selection under small-scale deformation with a complex loading condition was rarely reported. In the present study, the small-scale deformation of metastable beta Ti alloy was investigated using nanoindentation combined with the transmission electron microscope (TEM) observation. Different martensitic variants were detected under the complex strain/stress field given by the indenter in the single titanium crystal, which was well interpreted by the Schmid factor (SF) and interaction work (IW) criterion, with the assistance of finite element (FE) simulation. The same prediction given by SF and IW comes from the truth that SF for simple shear is a special case of the IW criterion.

Metastable beta Ti alloys Nanoindentation Stress-induced martensitic transformation Variant selection

SCI ; EI

英语

第一 ; 通讯

National Natural Science Foundation of China[U52071173];

Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering

WOS:001041826500001

ELSEVIER SCIENCE SA

20232114134340

Martensitic transformations ; Titanium alloys ; Transmission electron microscopy

Metallography:531.2 ; Titanium and Alloys:542.3 ; Nanotechnology:761 ; Mechanical Variables Measurements:943.2

MATERIALS SCIENCE

2-s2.0-85159763549

Scopus

1.Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.Laboratory of Thermomechanical Metallurgy (LMTM),PX Group Chair,Ecole Polytechnique Fédérale de Lausanne (EPFL),Neuchâtel,Rue de la Maladière 71b,2002,Switzerland

Xiao，J. F.,Shang，X. K.,Zhang，J. Q.,等. Revealing the martensitic variant selection in metastable beta titanium alloy Ti–10V–2Fe–3Al under heterogeneous deformation[J]. Materials Science and Engineering A,2023,876.

Xiao，J. F..,Shang，X. K..,Zhang，J. Q..,Li，Y..,Wen，B..,...&He，B. B..(2023).Revealing the martensitic variant selection in metastable beta titanium alloy Ti–10V–2Fe–3Al under heterogeneous deformation.Materials Science and Engineering A,876.

Xiao，J. F.,et al."Revealing the martensitic variant selection in metastable beta titanium alloy Ti–10V–2Fe–3Al under heterogeneous deformation".Materials Science and Engineering A 876(2023).