A thermo-mechanically coupled phase-field fatigue fracture model DOI
Zhenhui Zhang, Ruqin Zhang,

Shen Sun

et al.

Acta Mechanica, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 4, 2024

Language: Английский

Co-Cr3C2 Coating incorporating Grain Refinement and Dislocation Density Gradient to Enhance Wear Resistance of 24CrNiMo Steel DOI

Haobing Hu,

Gongbin Tang, Zhitao Cheng

et al.

Wear, Journal Year: 2025, Volume and Issue: unknown, P. 205752 - 205752

Published: Jan. 1, 2025

Language: Английский

Citations

1
Experimental and numerical study of stress wave generation and attenuation in copper during laser shock peening DOI Creative Commons
Alexander E. Mayer, А. Vshivkov, O. Plekhov

et al.

Journal of Applied Physics, Journal Year: 2025, Volume and Issue: 137(6)

Published: Feb. 10, 2025

A physically based model of laser shock peening is established and experimentally verified. The laser-induced generation stress wave in the confined geometry considered directly through heating evaporation surface layer copper described by a wide-range equation state. structure attenuation dislocation plasticity model. In experimental part, plates three different thicknesses (0.5, 0.8, 1.0 mm) were irradiated 11-ns (FWHM) 1064-nm with energy densities 64, 95, 127, 191 J/cm2, back free velocity histories registered means photonic Doppler velocimetry. Consideration plate allows us to decouple effects verify independently corresponding parts It shown that widely used Fabbro's tends underestimate interface pressure pulse because stationary plasma expansion assumed this only after 30–60 ns irradiation constant power density. efficiency value φ=1 optimal reproduce at nanosecond contrast φ=0.5, which estimate level for

Language: Английский

Citations

1
Fatigue Threshold and Microstructure Characteristic of TC4 Titanium Alloy Processed by Laser Shock DOI Creative Commons

Shanshun Zha,

Hengyun Zhang, Jiong Yang

et al.

Metals, Journal Year: 2025, Volume and Issue: 15(4), P. 453 - 453

Published: April 17, 2025

Laser shock peening (LSP) is an effective method to improve the fatigue property of metallic materials, and a thorough understanding its strengthening mechanism crucial for technology application. In this study, LSP tests TC4 titanium alloy have been carried out. Combined with structural characterization crystal plasticity finite element (CPFE) simulation, relationship stress distribution, microstructure evolution performance caused by revealed. The results indicate that material’s life initially increases subsequently declines rising pulse energy. At optimal energy condition, laser-shocked specimen demonstrates 126% increase in relative untreated specimen, which accompanied higher residual compressive along depth. Meanwhile, grains become more refined uniform size change gradient, β phase content drops from 4.1% 2.2%. Notably, regions <1-21-0> orientation can be selectively achieved. With favorable slip direction orthogonal applied loading axis, generation propagation dislocations are effectively constrained, thereby significantly enhancing performance. distribution models different grain sizes contents further analyzed CPFE method, showing good consistency experimental results. Theoretically, excessively high causes transient temperature (1769 °C) surpass melting point (1660 °C), affect recrystallization structure distribution.

Language: Английский

Citations

1
Designed gradient nanostructure in AZ31 Mg alloy sheet for balancing strength and ductility DOI

Jiapeng Sun,

Bangjun Li,

Ying Han

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 180930 - 180930

Published: May 1, 2025

Language: Английский

Citations

0
Predicting high-cycle fatigue strength and three-dimensional fatigue crack growth in simulated compressor blade by phase-field model DOI

Shen Sun,

Shijie Liu,

Weiwei He

et al.

Aerospace Science and Technology, Journal Year: 2025, Volume and Issue: unknown, P. 110009 - 110009

Published: Feb. 1, 2025

Language: Английский

Citations

0
Synergistic enhancement of strength and plasticity for laser direct energy deposited Ti60 joint by locally applied laser shock peening DOI
Yongxin Zhang, Wei Guo, Hongyu Zhang

et al.

Materials Science and Engineering A, Journal Year: 2025, Volume and Issue: unknown, P. 148255 - 148255

Published: March 1, 2025

Language: Английский

Citations

0
High cycle fatigue properties of Ti-6Al-4V/304 clad plate with corrugated interface under the influence of multi-factor coupling DOI
Zhongkai Ren,

Xiongwei Guo,

Jinxiong Hou

et al.

International Journal of Fatigue, Journal Year: 2025, Volume and Issue: unknown, P. 108966 - 108966

Published: April 1, 2025

Language: Английский

Citations

0
Effects of residual stress on the isothermal tensile behavior of nanocrystalline superelastic NiTi shape memory alloy DOI Creative Commons
Kai Yan, Pengbo Wei, Weifeng He

et al.

Journal of Materials Research and Technology, Journal Year: 2024, Volume and Issue: 33, P. 8025 - 8039

Published: Nov. 1, 2024

Language: Английский

Citations

2
Phase-field modeling for predicting three-dimensional fatigue crack initiation and growth under laser shock peening induced residual stress DOI
Wei Tang,

Shaopu Su,

Shen Sun

et al.

International Journal of Fatigue, Journal Year: 2024, Volume and Issue: unknown, P. 108786 - 108786

Published: Dec. 1, 2024

Language: Английский

Citations

1
A thermo-mechanically coupled phase-field fatigue fracture model DOI
Zhenhui Zhang, Ruqin Zhang,

Shen Sun

et al.

Acta Mechanica, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 4, 2024

Language: Английский

Citations

0