Mechanical properties and microstructure of a Ti-6A1-4V alloy subjected to cold rolling, asymmetric rolling and asymmetric cryorolling

Yu, Hailiang1,2,3,4; Yan, Ming5; Li, Jintao4; Godbole, Ajit4; Lu, Cheng4; Tieu, Kiet4; Li, Huijun4; Kong, Charlie6

2018-01-05

10.1016/j.msea.2017.10.075

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

0921-5093

1873-4936

The mechanical properties of the Ti-6Al-4V alloy are significantly determined by the process used for manufacture. In this study, the mechanical properties of the Ti-6Al-4V alloy manufactured using cold rolling, asymmetric rolling and asymmetric cryorolling were characterized by subjecting it to the tensile test and the microhardness test. The evolution in the microstructure was studied using scanning electron microscopy, transmission electron microscopy as well as energy dispersive X-ray spectrometry. Results show that the Ti-6Al-4V alloy sheets subjected to asymmetrical cryorolling with low rolling speed ratio between the upper and lower rolls have the highest tensile strength and microhardness. The tensile stress of the alloy samples after cold rolling was found to be 1008 MPa, 1046 MPa after asymmetric rolling, and 1113 MPa after asymmetric cryorolling. The highest Vickers hardness (HV395) is achieved by asymmetric cryorolling. We discuss the mechanical behavior using the criteria of grain size, size of second phase as well as dislocation density.

Ti-6A1-4V alloy Asymmetric rolling Cryorolling Mechanical property Microstructure

SCI ; EI

英语

通讯

Research Fund of the Key Laboratory of High Performance Complex, Manufacturing, Central South University, China[ZZYJKT2017-04]

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

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

WOS:000429888200002

ELSEVIER SCIENCE SA

20174304313377

Chromium alloys ; Cold rolling ; High resolution transmission electron microscopy ; Mechanical properties ; Metal testing ; Microhardness ; Microstructure ; Scanning electron microscopy ; Tensile strength ; Tensile testing ; Ternary alloys ; Titanium alloys ; Vanadium alloys ; Vickers hardness

Rolling Mill Practice:535.1.2 ; Aluminum Alloys:541.2 ; Titanium and Alloys:542.3 ; Chromium and Alloys:543.1 ; Vanadium and Alloys:543.6 ; Optical Devices and Systems:741.3 ; Materials Science:951

MATERIALS SCIENCE

Web of Science

1.Cent S Univ, State Key Lab High Performance Complex Mfg, Changsha 410083, Hunan, Peoples R China
2.Cent S Univ, Sch Mech & Elect Engn, Changsha 410083, Hunan, Peoples R China
3.Xian Univ Architecture & Technol, Sch Met Engn, Xian 710055, Shaanxi, Peoples R China
4.Univ Wollongong, Sch Mech Mat & Mechatron Engn, Wollongong, NSW 2500, Australia
5.South Univ Sci & Technol China, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
6.Univ New South Wales, Electron Microscope Unit, Sydney, NSW 2052, Australia

Yu, Hailiang,Yan, Ming,Li, Jintao,et al. Mechanical properties and microstructure of a Ti-6A1-4V alloy subjected to cold rolling, asymmetric rolling and asymmetric cryorolling[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2018,710:10-16.

Yu, Hailiang.,Yan, Ming.,Li, Jintao.,Godbole, Ajit.,Lu, Cheng.,...&Kong, Charlie.(2018).Mechanical properties and microstructure of a Ti-6A1-4V alloy subjected to cold rolling, asymmetric rolling and asymmetric cryorolling.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,710,10-16.

Yu, Hailiang,et al."Mechanical properties and microstructure of a Ti-6A1-4V alloy subjected to cold rolling, asymmetric rolling and asymmetric cryorolling".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 710(2018):10-16.