The Effect on the Surface of Ti-5Al-2Sn-2Zr-4Mo-4Cr by Laser Shock Peening

Xiang Fan Nie; Ni Dong Long; Wei Feng He; Qi Peng Li

doi:10.4028/www.scientific.net/MSF.694.946

Paper Titles

Organic Light-Emitting Diodes with Varying Thickness of Bathocuproine Layer
p.901

Molecular Dynamics Simulation of Relaxation and Local Structure Change of a Molten Cu₁₃₅ Cluster during Rapidly Quenching
p.908

Study on Tribological Properties of n-SiO₂/FeS Solid Lubrication Composite Coating
p.914

The Simple Method in Grinding the Carbide Burs of the Shape of a Cone Upside down
p.919

Propagation Characteristics of Longitudinal Displacement Wave in Micropolar Fluid with Micropolar Elastic Plate
p.923

The Research on Ferromagnetism of the Y Doped ZnO Film
p.928

A Facile Method to Fabricate Monodispersed SBA-15 Spheres
p.931

An Efficient Catalysis-Oxidation Method for the Degradation of Phenol in Wastewater
p.936

The Effect on the Surface of Ti-5Al-2Sn-2Zr-4Mo-4Cr by Laser Shock Peening
p.946

HomeMaterials Science ForumMaterials Science Forum Vol. 694The Effect on the Surface of...

The Effect on the Surface of Ti-5Al-2Sn-2Zr-4Mo-4Cr by Laser Shock Peening

Abstract:

Under the terrible environment in the aero-engine, the blade, made of Ti-5Al-2Sn-2Zr-4Mo-4Cr titanium alloy, is prone to result in fatigue failure. So improving the titanium alloy performance is becoming very significant. In this paper, the microstructure and microhardness of Ti-5Al-2Sn-2Zr-4Mo-4Cr titanium alloy with and without laser shock peening (LSP) were examined and compared by XRD, TEM and microhardness test. The XRD tests pointed out that LSP generated the microstrains and grains refinement in the material surface. The TEM results indicated that great high density dislocations were generated and evolved into the dislocation wall, small-angle boundary and large-angle boundary. The nanocrystallites were formed and became more and more uniform after 4GW/cm2. The grains nanocrystallization in the surface layer helps to improve the material performance. The microhardness test result showed that LSP could increase the hardness by 20 percent or so. And the affected depth is about 700μm.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Materials Science Forum (Volume 694)

Pages:

946-950

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.694.946

Citation:

Cite this paper

Online since:

July 2011

Authors:

Xiang Fan Nie, Ni Dong Long, Wei Feng He, Qi Peng Li

Keywords:

Grains Nanocrystallization, High Density Dislocation, Laser Shock Peening, Micro Strain, Microstructure and Microhardness, Titanium Alloy

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] Li Wei, Li Yinghong, He Weifeng et al. Development and application of laser shock processing[J], Laser & Optoelectronics Progress, 2008, 45(12): 15~19.

DOI: 10.3788/lop20084512.0015

Google Scholar

[2] P. Peyre, R. Fabbro, et al. Mater Sci and Eng, A210( 1996), p.102.

Google Scholar

[3] Gerland M, Hallouin M, Presles N. Mater Science Engineer, 156A(1992), p.175.

Google Scholar

[4] J.M. Yang, Y.C. Her, N. Han, A. Clauer. Mater Science Engineer, , A298(2001), p.296.

Google Scholar

[5] J.L. Ocaña, M. Morales, C. Molpeceres, J.A. Porro. Proceedings of SPIE Vol. 6346, 63461, (2007).

Google Scholar

[6] Bassem S. EI-Dasher, Tania M. Zaleski, Jeremy J. Gray, et al. J appl. phy, 103506(2006), p.99.

Google Scholar

[7] P. Peyre, R. Fabbro. Opt. Quant. Electron. 27(1995), p.1213.

Google Scholar

[8] P.R. Smith, M. J. Shepard, P.S. Prevéy III, and A.H. Clauer. Effect of Power Density and Pulse Repetition on Laser Shock Peening of Ti-6AI-4V，ASM International，2000（9）: 33-37.

DOI: 10.1361/105994900770346259

Google Scholar

[9] A.L. Ortiz, L. Shaw. Acta Materialia 52(2004), p.2185.

Google Scholar

[10] Xu BinShi Nano Surface Engineering (2004), p.18.

Google Scholar