Effect of laser shock peening on the microstructure, tensile and heat transport properties of Alloy D9

Sundar, R.; Sudha, C.; K., A.; Ganesh, P.; Kolhatkar, Ashish; Murugesan, S.; Karthik, V.; Biswal, R.; Raju, S.; Ranganathan, K.; Kaul, R.; Bindra, K. S.

doi:10.1007/s40516-020-00118-y

Cited by 4 publications

(2 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Many researchers have experimentally proved that laser-assisted peening process is superior in obtaining properties like increased wear resistance [ 21 , 24 , 26 , 31 ], improved hardness [ 21 , 24 , 25 , 26 , 27 , 28 , 30 ], increased fatigue life [ 23 , 26 ], enhanced corrosion resistance [ 20 , 22 , 32 ], increased yield strength [ 23 , 27 , 30 ], improved surface roughness [ 20 , 24 , 26 , 31 ], and refined microstructure [ 25 , 27 , 28 ] in metals and alloys. Researchers demonstrated many materials that are successfully peened using LSP techniques including, but not limited to aluminum alloys [ 21 , 23 , 24 ], different steel grades [ 20 , 22 , 27 , 32 ], titanium alloys [ 16 , 17 , 25 ], magnesium alloys [ 28 ], ceramics [ 29 ], super alloys [ 30 ], and brass [ 31 ]. Recently, LSP techniques have been widely applied as a method for post-processing of welds [ 105 ] and on additively manufactured (AM) components [ 106 ].…”

Section: Peening Techniquesmentioning

confidence: 99%

“…LSP primarily involves the interaction of high-power density lasers with substrates. In the past, researchers conducted innovative studies using LSP experiments on metals and alloys that are prominently used in marine applications [ 19 , 20 , 21 , 22 ], aerospace [ 23 , 24 , 25 , 26 ], medical [ 27 , 28 , 29 ], and industry [ 30 , 31 , 32 ]. These studies demonstrated the impact of various LSP parameters on mechanical properties and microstructural features.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Peening Techniques for Surface Modification: Processes, Properties, and Applications

et al. 2021

View full text Add to dashboard Cite

Surface modification methods have been applied to metals and alloys to change the surface integrity, obtain superior mechanical properties, and improve service life irrespective of the field of application. In this review paper, current state-of-the-art of peening techniques are demonstrated. More specifically, classical and advanced shot peening (SP), ultrasonic impact peening (UIP), and laser shock peening (LSP) have been discussed. The effect of these techniques on mechanical properties, such as hardness, wear resistance, fatigue life, surface roughness, and corrosion resistance of various metals and alloys, are discussed. This study also reports the comparisons, advantages, challenges, and potential applications of these processes.

show abstract

Section: Peening Techniquesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Peening Techniques for Surface Modification: Processes, Properties, and Applications

et al. 2021

View full text Add to dashboard Cite

show abstract

Laser Shock Peening: A Walkthrough

Sundar

2022

Advanced Engineering of Materials Through Lasers

View full text Add to dashboard Cite

Microstructure Evolution and Improved Surface Properties of Ti-6Al-3Nb-2Zr-1Mo Alloy by Laser Shot Peening

Luo

Zhang

Xiong

et al. 2022

J. of Materi Eng and Perform

View full text Add to dashboard Cite

In this work, the surface modification of Ti-6Al-3Nb-2Zr-1Mo (Ti80) alloy was performed by laser shock peening (LSP). The resultant microstructure, mechanical properties and corrosion properties of LSP-treated (LSPed) Ti80 were systematically investigated by 3D profiler, x-ray diffractometer (XRD), optical microscope (OM), transmission electron microscope (TEM), scanning electron microscope (SEM), microhardness tester, tensile tester and electrochemical workstation. LSP induced significant number of dislocations through plastic deformation, forming many defects such as dislocation tangles, stacking faults and deformation twins. The surface grain was severely refined due to severe plastic deformation at the surface. Microhardness improved substantially by 26.7%, compressive residual stress reached its maximum value (−307 MPa), and both microhardness and compressive residual stress presented a gradient change along depth. The tensile properties were improved by the action of work hardening, grain refinement and compressive residual stresses after LSP. The fracture changed from typical ductile to mixed ductile and brittle fracture. Grain refinement provides more nucleation sites for the formation of passivation film, while impurities are not easily segregated at grain boundaries, retarding intergranular corrosion, high-density dislocations hinder electron transfer and reduce corrosion current density, resulting in a significant improvement in the corrosion resistance of Ti80 alloy in 3.5% NaCl and 5M HCL solution.

show abstract

Effect of laser shock peening on the microstructure, tensile and heat transport properties of Alloy D9

Cited by 4 publications

References 45 publications

Peening Techniques for Surface Modification: Processes, Properties, and Applications

Peening Techniques for Surface Modification: Processes, Properties, and Applications

Laser Shock Peening: A Walkthrough

Microstructure Evolution and Improved Surface Properties of Ti-6Al-3Nb-2Zr-1Mo Alloy by Laser Shot Peening

Contact Info

Product

Resources

About