Effect of laser shock processing on fatigue crack growth of duplex stainless steel

2011 ◽  
Vol 528 (3) ◽  
pp. 914-919 ◽  
Author(s):  
C. Rubio-González ◽  
C. Felix-Martinez ◽  
G. Gomez-Rosas ◽  
J.L. Ocaña ◽  
M. Morales ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Duplex Stainless Steel ◽  
Crack Growth ◽  
Laser Shock ◽  
Laser Shock Processing ◽  
Shock Processing

Fatigue Crack Propagation Experiment and Simulation on 7050 Aluminum Alloy

2011 ◽  
Vol 464 ◽  
pp. 560-563
Author(s):  
Xu Dong Ren ◽  
Yong Zhuo Huangfu ◽  
Yong Kang Zhang ◽  
Da Wei Jiang ◽  
Tian Zhang
Keyword(s):  
Aluminum Alloy ◽  
Fatigue Crack ◽  
Fatigue Life ◽  
Fatigue Crack Growth ◽  
Crack Propagation ◽  
Crack Growth ◽  
Laser Shock ◽  
Laser Shock Processing ◽  
7050 Aluminum Alloy ◽  
Shock Processing

In this paper, an experiment of fatigue crack propagation in 7050 aluminum alloy was presented. Laser shock processing (LSP) is used to shock the crack surface. Compared with the specimen without LSP, the fatigue life after LSP increased greatly. The simulation of the fatigue crack growth in 7050 aluminum alloy is implemented in FRANC2D. Simulating result is in accordance with the result of the experiment well. Laser shock processing increases the fatigue life and reduce fatigue crack growth rate, it has good prospect on the study of crack arrestment.

Experiment and Simulation of Laser Shock Processing on Fatigue Crack Growth of TC4 Alloy

2010 ◽  
Vol 139-141 ◽  
pp. 426-429 ◽  
Author(s):  
Yin Qun Hua ◽  
Zheng Rong Cai ◽  
Rui Fang Chen ◽  
Yu Xiao Chen ◽  
Hui Jiang
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Growth Rates ◽  
Laser Shock ◽  
Laser Shock Processing ◽  
Tc4 Alloy ◽  
Peak Pressures ◽  
Shock Processing ◽  
Crack Growth Rates

The residual stress induced by Laser shock processing (LSP) can improve properties of fatigue crack growth. In this paper, the CT models of LSP and fatigue crack growth have been built. We experimented the TC4 alloy treated by LSP and fatigue crack growth and then simulated the fatigue crack growth. The results show that the values of simulations are conform to experiments. With the increment of peak pressures and overlapping rates, the fatigue lives have been increased, the fatigue crack growth rates have been descent. The fatigue lives have been 1.46-3.03 times compared with untreated by LSP, the fatigue crack growth rates have been 0.127-0.95 time compared with untreated by LSP, but to overlapping rates, it is not obvious with the improvement compared with peak pressures.

Effect of laser shock processing on fatigue crack growth and fracture toughness of 6061-T6 aluminum alloy

2004 ◽  
Vol 386 (1-2) ◽  
pp. 291-295 ◽  
Author(s):  
C. Rubio-González ◽  
J.L. Ocaña ◽  
G. Gomez-Rosas ◽  
C. Molpeceres ◽  
M. Paredes ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Aluminum Alloy ◽  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Laser Shock ◽  
Laser Shock Processing ◽  
Shock Processing

Effects of Laser Shock Processing on Fatigue Crack Growth in Ti-17 Titanium Alloy

2017 ◽  
Vol 26 (2) ◽  
pp. 813-821 ◽  
Author(s):  
Shuai Huang ◽  
Ying Zhu ◽  
Wei Guo ◽  
Peng Peng ◽  
Hongchao Qiao ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Laser Shock ◽  
Laser Shock Processing ◽  
Shock Processing

Effect of laser shock processing on fatigue crack growth and fracture toughness of 6061-T6 aluminum alloy

2004 ◽  
Vol 386 (1-2) ◽  
pp. 291-295 ◽  
Author(s):  
C RUBIOGONZALEZ ◽  
J OCANA ◽  
G GOMEZROSAS ◽  
C MOLPECERES ◽  
M PAREDES ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Aluminum Alloy ◽  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Laser Shock ◽  
Laser Shock Processing ◽  
Shock Processing
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