Reorientation induced plasticity in full α" martensite Ti-9V-1Fe-4Al alloy

Wu, Jialin1; Zhang, Jiaming1; Zhang, Xianbing2; Sun, Jian1

2024-09-01

10.1016/j.msea.2024.146870

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING   影响因子和分区

0921-5093

1873-4936

The microstructure and deformation mechanism of a full orthorhombic alpha '' martensite Ti-9V-1Fe-4Al (wt.%) alloy were investigated by XRD, TEM, EBSD analyses and tensile tests. The results show that the quenched alloy has a twinned-martensite microstructure and {111}(alpha '') type I internal twins are formed as the lattice invariant shear for martensite transformation. The alloy plastically deforms by a complex reorientation of alpha '' martensite variants via the movement of the inter-variant boundaries of <211>(alpha '') type II twin, and deformation twinning of {111}(alpha '') type I internal twin and of newly generated {011}(alpha '') compound twin in primary twinned martensites. {130}(alpha '')< <(3)over bar> 10>(alpha '') and {110}(alpha '')<1 <(1)over bar> 0>(alpha '') plastic twins were not observed in the alloy. Such a kind of deformation induced martensite reorientation results in a good combination of strength and plasticity with yielding strength of 480 MPa, tensile strength of 1030 MPa and elongation of 23% in the alloy. The calculated results further show that the shears of {111}(alpha '') type I, <211>(alpha '') type II and {011}(alpha '') compound twins and the shuffle of {111}(alpha '') type I twin increase, while the shears of {130}(alpha '')< <(3)over bar> 10>(alpha '') and {110}(alpha '')<1 <(1)over bar> 0>(alpha '') twins and the shuffle of {130}(alpha '')< <(3)over bar> 10>(alpha '') twin decrease with an increase of the lattice parameter ratio b(alpha '')/a(alpha ''). The shears of these activated twinning systems are larger than those of {130}(alpha '')< <(3)over bar> 10>(alpha '') and {110}(alpha '')<1 <(1)over bar> 0>(alpha '') twins, and the shuffle of {111}(alpha '') type I twin is also bigger than that of {130}(alpha '')< <(3)over bar> 10>(alpha '') twin in the present alloy, which implies that the operative twining modes cannot be derived simply in terms of the shear and shuffle magnitude in full alpha '' martensite Ti based alloys.

Martensite transformation Twinning Reorientation Titanium alloy

SCI ; EI

英语

其他

National Natural Science Foundation of China[51371113]

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

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

WOS:001265757200001

ELSEVIER SCIENCE SA

20242716606373

Aluminum alloys ; Iron alloys ; Martensite ; Microstructure ; Plasticity ; Tensile strength ; Tensile testing ; Twinning ; Vanadium alloys

Metallography:531.2 ; Aluminum Alloys:541.2 ; Titanium and Alloys:542.3 ; Vanadium and Alloys:543.6 ; Iron Alloys:545.2 ; Crystal Growth:933.1.2 ; Materials Science:951

MATERIALS SCIENCE

Web of Science

1.Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai Key Lab Adv High Temp Mat & Precis Formin, Shanghai 200240, Peoples R China
2.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Peoples R China

Wu, Jialin,Zhang, Jiaming,Zhang, Xianbing,et al. Reorientation induced plasticity in full α" martensite Ti-9V-1Fe-4Al alloy[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2024,910.

Wu, Jialin,Zhang, Jiaming,Zhang, Xianbing,&Sun, Jian.(2024).Reorientation induced plasticity in full α" martensite Ti-9V-1Fe-4Al alloy.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,910.

Wu, Jialin,et al."Reorientation induced plasticity in full α" martensite Ti-9V-1Fe-4Al alloy".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 910(2024).