1 edition of Laser Shock Processing of FCC Metals found in the catalog.
Published
2013
by Springer Berlin Heidelberg, Imprint: Springer in Berlin, Heidelberg
.
Written in
Laser shock processing (LSP) is a new and promising surface treatment technique for improving the fatigue durability, corrosion, wear resistance and other mechanical properties of metals and alloys. During LSP, the generated shock wave can introduce a deep compressive residual stress into the material, due to its high-pressure (GPa-TPa), ultra-fast (several tens nanoseconds), ultra-high strain-rate and high-energy. The overall properties and behavior of metal materials subjected to LSP were significantly improved because a refined surface layer was successfully obtained. Nevertheless, up to now, a clear scenery between micro-structure and macro-property of the refined surface layer, especially formation of sub-micrometer grains from coarse grains during severe plastic deformation, is still pending. Therefore, the basic studies of the underlying mechanism for grain refinement by ultra-high strain-rate presented in this book becomes more and more crucial.
Edition Notes
| Statement | by Yongkang Zhang, Jinzhong Lu, Kaiyu Luo |
| Series | Springer Series in Materials Science -- 179 |
| Contributions | Lu, Jinzhong, Luo, Kaiyu, SpringerLink (Online service) |
| Classifications | |
|---|---|
| LC Classifications | TA459-492 |
| The Physical Object | |
| Format | [electronic resource] : |
| Pagination | XI, 194 p. 113 illus., 28 illus. in color. |
| Number of Pages | 194 |
| ID Numbers | |
| Open Library | OL27069171M |
| ISBN 10 | 9783642356742 |
Curtiss-Wright Surface Technologies. Curtiss-Wright Surface Technologies (CWST) is a leading global provider of highly engineered surface treatments and analytical services that help prevent premature failures including fatigue, corrosion, wear, galling and fretting . Several laser-based techniques to fabricate parts by depositing metals, ceramic powders, or a combination thereof have been developed in recent years. These fabrication techniques are incomplete and not fully useful to an operator without any predictive capability to calculate the geometries of the fabricated parts or equations to calculate their expected yield and ultimate strengths.
This article discusses the feasibility of a new microforming technique—laser dynamic forming (LDF). LDF is a new hybrid forming process, combining the advantages of laser shock peening, and metal forming, with an ultra high strain rate forming utilizing laser shock waves. Experiments are conducted on copper foils to demonstrate this forming process. Book & Book Chapter; Patent; Vulgarisation; Séminaires; Technical Platforms. Dynamics of Systems; Field Measurements; Laser. Laser thermal processing Platform; laser Shock Plateform; Mechanical Characterization; Microscopy; Physico-Chemical Characterization; Fragilization by liquid metals investigated with in situ mechanical tests under.
Michael Sealy received his Ph.D. in and B.S. in in Mechanical Engineering from The University of Alabama (UA) in Tuscaloosa. He directs the Advanced Manufacturing Research Lab at UNL and is President of Surface Integrity LLC, a med-tech startup developing the next generation of biodegradable orthopedic implants. He has made significant contributions to the. Laser machining is an emerging area with a wide variety of applications, ranging from bulk machining in metal forming to micromachining and microstructuring in electronics and biomedical applications. The unique properties of lasers allow for use in flexible manufacturing techniques such as.
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Laser shock processing (LSP) is a new and promising surface treatment technique for improving the fatigue durability, corrosion, wear resistance and other mechanical properties of metals and alloys. During LSP, the generated shock wave can introduce a deep compressive residual stress into the material, due to its high-pressure (GPa-TPa), ultra.
Laser shock processing (LSP) is a new and promising surface treatment technique for improving the fatigue durability, corrosion, wear resistance and other mechanical properties of metals and alloys.
During LSP, the generated shock wave can introduce a deep compressive residual stress into the. Laser Shock Processing of FCC Metals: Micro-Structural Strengthening Mechanism. [Yongkang Zhang; Jinzhong Lu; Kaiyu Luo] -- Laser shock processing (LSP) is a new and promising surface treatment technique for improving the fatigue durability, corrosion, wear resistance and other mechanical properties of metals and alloys.
Get this from a library. Laser shock processing of FCC metals: mechanical properties and micro-structural strengthening mechanism. [Yongkang Zhang; Jinzhong Lu; Kaiyu Luo] -- Laser shock processing (LSP) is a new and promising surface treatment technique for improving the fatigue durability, corrosion, wear resistance and other mechanical properties of metals and alloys.
Laser Shock Processing of FCC Metals: Mechanical Properties and Micro-structural Strengthening Mechanism (Springer Series in Materials Science Book ) eBook: Zhang, Yongkang, Lu, Jinzhong, Luo, Kaiyu: : Kindle StoreAuthor: Yongkang Zhang, Jinzhong Lu, Kaiyu Luo.
Laser shock processing (LSP) is an advanced material surface hardening technology that can significantly improve mechanical properties and extend service life by using the stress effect generated by laser-induced plasma shock waves, which has been increasingly applied in the processing fields of metallic materials and alloys.
With the rapidly development of modern industry, many new. Subjecting target metallic samples to a very short pulse (about 20 ns) of intense (GW cm −2) laser light generates, through a surface plasma, a high-pressure stress wave propagating to the first millimetre in depth, which is commonly called laser shock processing (LSP).The purpose of this work was to evaluate the role of this novel process on the cyclic properties of A, Al12Si and The effect of laser intensity, target material, laser pulse duration, and laser wavelength are, therefore, discussed.
An optimized process can then be defined. The second part of this article deals with the surface modifications induced by laser-shock processing. The generation of residual compressive stresses is then highlighted. Laser peening (LP) is an important post processing method for metal parts.
It is now extensively used to enhance the fatigue lifetime of jet engine fan and compressor blades and more recently in aircraft structures and nuclear spent fuel storage canisters [, ].It has been applied to improve surface properties in additively manufactured maraging steel [].
Recently, the slip process of shock-compressed solid materials has been observed by Laue diffraction with broadband X-r20,21,22,23,24 and an X-ray free electron laser Laser shock processing of copper using focused laser beam size about ten microns is investigated for its feasibility and capability to impart desirable residual stress distributions into the target material in order to improve the fatigue life of the material.
Laser shock peening (LSP) is a relatively new surface treatment for metallic materials. LSP is a process to induce compressive residual stresses using shock waves generated by laser pulses. LSP can greatly improve the resistance of a material to crack initiation and.
Laser peening protects mission-critical components from metal fatigue 10 to 15 times longer than competing processes, fighting many symptoms of metal fatigue. And since laser peening is a mechanical surface enhancement process, not a heat treatment, it preserves metal shapes and properties.
A tightly controlled pulse of high-energy laser energy generates shock waves that. The increases in fatigue life appear to result from significant residual surface stresses introduced by the shock process. Effects of Laser Induced Shock Waves on Metals.
In: Meyers M.A., Murr L.E. (eds) Shock Waves and High-Strain-Rate Phenomena in Metals. Buy Physical Book Learn about institutional subscriptions. Cite. Laser Peening can help parts last up to 10 times longer, thanks to a process that delivers precision protection deep into the surfaces of metal components.
The patented Laser Peening process delivers deep protection precisely where you need it to deter corrosion and cracking, optimizing your parts for their mission-critical applications.
The laser shock peening (LSP) process using a Q-switched pulsed laser beam for surface modification has been reviewed. The development of the LSP technique and its numerous advantages over the conventional shot peening (SP) such as better surface finish, higher depths of residual stress and uniform distribution of intensity were discussed.
Similar comparison with ultrasonic impact peening (UIP. (source: Nielsen Book Data) Summary Laser shock peening (LSP) is a process for inducing compressive residual stresses using shock waves generated by laser pulses. It is a relatively new surface treatment for metallic materials that can greatly improve their resistance to crack initiation and propagation brought on by cyclic loading and fatigue.
Comprehensive Materials Processing provides students and professionals with a one-stop resource consolidating and enhancing the literature of the materials processing and manufacturing provides authoritative analysis of all processes, technologies, and techniques for converting industrial materials from a raw state into finished parts or products.
Search the world's most comprehensive index of full-text books. My library. The mechanisms and kinetics of short pulse laser melting of single crystal and nanocrystalline Au films are investigated on the basis of the results of simulations performed with a model combining the molecular dynamics method with a continuum-level description of the laser excitation and subsequent relaxation of the conduction band electrons.
A description of the thermophysical properties of. Processing of materials by ultrashort laser pulses has evolved significantly over the last decade and is starting to reveal its scientific, technological and industrial potential. In ultrafast. To better understand the physical processes governing picosecond pulse laser ablation, we coupled experimentation with the multi-physics radiation hydrodynamic simulation to study material removal in two metals [Al and L stainless steel (SS)] and a semiconductor material [undoped crystalline Si (〈〉)] at laser wavelengths of nm and nm over a fluence range of.
Laser shock peening (LSP) is a relatively new surface treatment for metallic materials. LSP is a process to induce compressive residual stresses using shock waves generated by laser pulses. LSP can greatly improve the resistance of a material to crack initiation and propagation brought on by cyclic loading and fatigue.
This pioneering book was.
