Effect of Laser Shock Peening on Microstructure and Properties of Ti-6Al-3Nb-2Zr-1Mo Titanium Alloy

Gaoli Luo; Lingfeng Zhang; Yi Xiong; Baofeng Zhang; Xuepeng Chen

doi:10.3788/CJL202249.0802020

Chinese Journal of Lasers, Volume. 49, Issue 8, 0802020(2022)

Effect of Laser Shock Peening on Microstructure and Properties of Ti-6Al-3Nb-2Zr-1Mo Titanium Alloy

Gaoli Luo¹, Lingfeng Zhang^1,2、*, Yi Xiong^1,2, Baofeng Zhang³, and Xuepeng Chen¹

Author Affiliations

¹School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, Henan 471023, China

²Provincial and Ministerial Co-construction of Collaborative Innovation Center for Non-Ferrous Metal New Materials and Advanced Processing Technology, Luoyang, Henan 471023, China

³School of Mechanical Engineering, Huanghe Science and Technology University, Zhengzhou, Henan 450063, China

show less

Abstract Get PDF(in Chinese)

Figures & Tables(15)

Fig. 1. Dimension of tensile sample

Download full size

Fig. 2. Trajectory for hardness measurement

Download full size

Fig. 3. XRD patterns of Ti80 alloy before and after LSP at different angle ranges. (a) 30°90°；(b) 30°45°

Download full size

Fig. 4. Microstructural morphologies of Ti80 alloy. (a) Before LSP; (b) after LSP

Download full size

Fig. 5. Microstructural morphologies of Ti80 alloy. (a)(b) Before LSP; (c)(f) after LSP

Download full size

Fig. 6. Microhardnesses of Ti80 alloy before and after LSP at different layer depths

Download full size

Fig. 7. Residual stresses of Ti80 alloy before and after LSP at different layer depths

Download full size

Fig. 8. Tensile properties of Ti80 alloy before and after LSP

Download full size

$Tensile fracture morphologies of Ti80 alloy. (a) Before LSP; (b) after LSP$

Fig. 9. Tensile fracture morphologies of Ti80 alloy. (a) Before LSP; (b) after LSP

Download full size

Fig. 10. Polarization curves of Ti80 alloy before and after LSP in 5 mol/L HCL solution

Download full size

Fig. 11. Electrochemical impedance spectra of Ti80 alloy before and after LSP in 5 mol/L HCL solution. (a) Nyquist plots; (b) Bode magnitude plots; (c) Bode phase plots

Download full size

Fig. 12. Anticorrosion properties of Ti80 alloy before and after LSP in 5 mol/L HCL solution. (a) Weight loss versus time; (b) corrosion rate

Download full size

Fig. 13. Surface corrosion profiles of Ti80 alloy before and after LSP in 5 mol/L HCl solution. (a)(b) Before LSP；(c)(d) after LSP

Download full size

Table 1. Process parameters of LSP

View table

Table 1. Process parameters of LSP

Parameter	Value
Output beam divergence angle /mrad	≤2
Laser wavelength /nm	1064
Repetition rate /Hz	4
Pulse duration /ns	20
Pulse energy /J	7
Spot diameter /mm	3
Overlapping rate /%	50
Pulse-to-pulse energy stability /%	<1
Power density /(GW·cm^－2)	4.95
Absorbing layer thickness /mm	0.12
Confining layer thickness /mm	12

Table 2. Corrosion potential and corrosion current density of Ti80 alloy before and after LSP
View table
Table 2. Corrosion potential and corrosion current density of Ti80 alloy before and after LSP
Specimen Corrosion potential /mV Corrosion current density /(μA·cm^－2)
Untreated －445.6 1.54
LSP －326.6 1.02

Tools

Get Citation

Copy Citation Text

Gaoli Luo, Lingfeng Zhang, Yi Xiong, Baofeng Zhang, Xuepeng Chen. Effect of Laser Shock Peening on Microstructure and Properties of Ti-6Al-3Nb-2Zr-1Mo Titanium Alloy[J]. Chinese Journal of Lasers, 2022, 49(8): 0802020

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites