Effects of laser peening with different coverage areas on fatigue crack growth properties of 6061-T6 aluminum alloy
Source abstract
Abstract
Abstract The effects of coverage area on fatigue crack growth (FCG) properties of 6061-T6 aluminum alloy subject to multiple laser peening (LP) impacts were investigated. Residual stress, micro-structure and fatigue striation pattern on fracture cross-sections were analyzed. Compressive residual stresses and dense dislocation arrangements can be found in the superficial layer after LP. LP coverage area has a direct influence on FCG properties as verified by different size of shell ridges and fatigue striation spacing on fracture cross-sections. Meanwhile, FCG rate decreases with the increase of compressive residual stresses distribution perpendicular to the crack growth direction in the initial FCG stage.
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Research context
OpenAlex topics: Surface Treatment and Residual Stress · Erosion and Abrasive Machining · Metal Alloys Wear and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (30)
Show source-provided references
1. Fatigue crack growth in a diverse range of materials10.1016/j.ijfatigue.2012.01.004 ↗
2. Fatigue crack growth characteristics in cast Al–Si–Mg alloys: Part II
3. Fatigue crack propagation behavior in friction stir welding of AA6063-T5: roles of residual stress and microstructure10.1016/j.ijfatigue.2012.02.003 ↗
4. Effects of residual stresses on fatigue crack growth behavior of structural materials: analytical corrections10.1016/j.ijfatigue.2011.01.019 ↗
5. Influence of shot peening on fatigue durability of normalized steel subjected to variable amplitude loading10.1016/j.ijfatigue.2011.11.011 ↗
6. An evaluation of shot peening, residual stress and stress relaxation on the fatigue life of AISI 4340 steel10.1016/S0142-1123(01)00205-5 ↗
7. Laser shock processing and its effects on microstructure and properties of metal alloys: a review10.1016/S0142-1123(02)00022-1 ↗
8. Cavitation shotless peening for improvement of fatigue strength of carbonized steel10.1016/S0142-1123(03)00121-X ↗
9. Investigation of the fatigue behaviour of the welded joints treated by TIG dressing and ultrasonic peening under variable-amplitude load10.1016/j.ijfatigue.2004.05.009 ↗
10. Fatigue life enhancement of aluminum alloy for aircraft by fine particle shot peening (FPSP)10.1016/j.jmatprotec.2011.03.011 ↗
11. Influence of microshot peening on surface layer characteristics of structural steel10.1016/j.jmatprotec.2007.03.026 ↗
12. A comprehensive investigation on the effects of laser and shot peening on fatigue crack growth in friction stir welded AA 2195 joints10.1016/j.ijfatigue.2008.03.029 ↗
13. Grain refinement mechanism of multiple laser shock processing impacts on ANSI 304 stainless steel10.1016/j.actamat.2010.06.010 ↗
14. Improvement of fatigue life of Ti-6Al-4V alloy by laser shock peening10.1016/j.msea.2010.01.076 ↗
15. Effect of laser shock processing on fatigue crack growth of duplex stainless steel10.1016/j.msea.2010.10.020 ↗
16. Effect of laser shock processing on fatigue crack growth and fracture toughness of 6061–T6 aluminum alloy10.1016/j.msea.2004.07.025 ↗
17. Effect of repeated impacts on mechanical properties and fatigue fracture morphologies of 6061–T6 aluminum subject to laser peening10.1016/j.msea.2012.01.125 ↗
18. Laser shock peening on fatigue behavior of 2024–T3 Al alloy with fastener holes and stopholes10.1016/S0921-5093(00)01277-6 ↗
19. Massive parallel laser shock peening: simulation, analysis, and validation10.1016/j.ijfatigue.2007.01.033 ↗
20. Fatigue crack propagation behavior of friction stir welded 5083-H32 and 6061-T651 aluminum alloys10.1016/j.msea.2007.06.008 ↗
21. Effects of differentshocked pathson fatigue property of 7050-T7451 aluminum alloy during two-sided laser shock processing10.1016/j.matdes.2010.08.039 ↗
22. Effects of laser shock processing with different shocked paths on mechanical properties of laser welded ANSI 304 stainless steel joint10.1016/j.msea.2011.02.054 ↗
23. Roles of microstructure in fatigue crack initiation10.1016/j.ijfatigue.2009.10.005 ↗
24. Grain refinement of LY2 aluminum alloy induced by ultra-high plastic strain during multiple laser shock processing impacts10.1016/j.actamat.2010.03.026 ↗
25. The effect of residual stresses arising from laser shot peening on fatigue crack growth10.1016/j.engfracmech.2010.03.033 ↗
26. Investigation of laser shock peening effects on residual stress state and fatigue performance of titanium alloys10.1016/j.msea.2011.12.072 ↗
27. Investigation of the stress intensity factor changing on the hole crack subject to laser shock processing10.1016/j.matdes.2008.09.033 ↗
28. The role of microtexture on the faceted fracture morphology in Ti-6Al-4V subjected to high-cycle fatigue10.1016/j.actamat.2010.03.036 ↗
29. A critical analysis of crack propagation laws10.1115/1.3656900 ↗
30. ASTM 2002. Annual book of ASTM standards, v. 03.01 no. E647-00. Standard test method for measurement of fatigue crack growth rates.