Microstructure and mechanical properties of Ti-6Al-4V prepared by nickel preplating and electron beam surface remelting

Wu, Zhilin1,2; Wang, Wenqin1; Li, Xuewen1; Yan, Ming3; Li, Yulong1,2

2019-09

10.1016/j.jmatprotec.2019.04.017

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY   影响因子和分区

0924-0136

A Ni layer was first electroplated on the surface of Ti-6Al-4V (TC4) to enhance surface hardness and reduce the negative impact of a powder addition, and then, the preplated TC4 was surface remelted by a high energy electron beam. The associated Ti-Ni composite coating, heat affected zone and substrate were characterized by XRD, SEM, TEM and nanoindentation. The results showed that the surface integrity of the coating increased, the surface hardness improved, and new intermetallic phases of Ti2Ni and TiNi were distributed in the remelted surface area. The coating grains were refined to a nanocrystalline structure with a distorted lattice, which was rich in dislocations or stacking faults. The maximum hardness of the modified coating was 7.03 GPa. Through first-principles calculations, the related properties of the Ti-Ni binary compounds of Ti2Ni, TiNi and TiNi3 were obtained, including crystal structure, mechanical properties and electronic properties.

Titanium alloy Electroplated Ni Electron beam surface remelting Intermetallic compound First-principles calculations

SCI ; EI

英语

其他

Postgraduate Innovative Special Foundation of Nanchang University[CX2018041]

Engineering ; Materials Science

Engineering, Industrial ; Engineering, Manufacturing ; Materials Science, Multidisciplinary

WOS:000471083400039

ELSEVIER SCIENCE SA

20191706812934

Aluminum alloys ; Binary alloys ; Calculations ; Composite coatings ; Crystal structure ; Electron beams ; Electronic properties ; Hardness ; Heat affected zone ; Intermetallics ; Mechanical properties ; Nanocrystals ; Nickel compounds ; Remelting ; Ternary alloys ; Titanium compounds

Metallurgy:531.1 ; Foundries:534.1 ; Welding:538.2 ; Aluminum Alloys:541.2 ; Titanium and Alloys:542.3 ; Nanotechnology:761 ; Coating Materials:813.2 ; Mathematics:921 ; Crystal Lattice:933.1.1 ; Materials Science:951

MATERIALS SCIENCE

Web of Science

1.Nanchang Univ, Mech & Elect Engn Sch, Key Lab Robot & Welding Automat Jiangxi Prov, Nanchang 330031, Jiangxi, Peoples R China
2.Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Heilongjiang, Peoples R China
3.Southern Univ Sci & Technol, Shenzhen Key Lab Addit Mfg High Performance Mat, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China

Wu, Zhilin,Wang, Wenqin,Li, Xuewen,et al. Microstructure and mechanical properties of Ti-6Al-4V prepared by nickel preplating and electron beam surface remelting[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,2019,271:420-428.

Wu, Zhilin,Wang, Wenqin,Li, Xuewen,Yan, Ming,&Li, Yulong.(2019).Microstructure and mechanical properties of Ti-6Al-4V prepared by nickel preplating and electron beam surface remelting.JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,271,420-428.

Wu, Zhilin,et al."Microstructure and mechanical properties of Ti-6Al-4V prepared by nickel preplating and electron beam surface remelting".JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 271(2019):420-428.