Description
Aluminum-Lithium Alloys
Processing, Properties, and Applications
Coordinators: Prasad N Eswara, Gokhale Amol, Wanhill R.J.H
Language: EnglishSubjects for Aluminum-Lithium Alloys:
Keywords
Aerospace materials; Aerostructures; Age hardening; Ageing; Airworthiness; Al-Li alloys; Al-Li alloys; Al-Li alloys; Applications; Binary; Binary alloy; Cast microstructure; Cavity Nucleation and Growth; Corrosion; DC casting; Deformation; Degassing; Ductility; Ductility and fracture toughness; Engineering properties; Fatigue; Fatigue crack growth; Fatigue power-law relationships; Fluxing; Fracture and exfoliation; Fracture modes; Fracture-toughness data; Fusion welding; Grain-boundary segregation; High cycle fatigue; History; Homogenization; Intergranular corrosion; Low Temperature Superplasticity; Low cycle fatigue; Material certification; Mechanical properties; Melting; Microstructure; Notch fatigue; Phases; Planar slip deformation; Precipitation; Primary processing; Process Maps; Quaternary alloy; Quaternary systems; Secondary processing; Slip character; Slip-mode; Solid state welding; Solidification cracking; Solution treatment; Strain localization; Strength; Stress corrosion; Superplastic Forming; Superplasticity; S'; T1; T2; Ternary; Ternary alloy; Texture; Thermomechanical processing; Welding; δ'
608 p. · 15x22.8 cm · Hardback
Description
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Because lithium is the least dense elemental metal, materials scientists and engineers have been working for decades to develop a commercially viable aluminum-lithium (Al-Li) alloy that would be even lighter and stiffer than other aluminum alloys. The first two generations of Al-Li alloys tended to suffer from several problems, including poor ductility and fracture toughness; unreliable properties, fatigue and fracture resistance; and unreliable corrosion resistance.
Now, new third generation Al-Li alloys with significantly reduced lithium content and other improvements are promising a revival for Al-Li applications in modern aircraft and aerospace vehicles. Over the last few years, these newer Al-Li alloys have attracted increasing global interest for widespread applications in the aerospace industry largely because of soaring fuel costs and the development of a new generation of civil and military aircraft. This contributed book, featuring many of the top researchers in the field, is the first up-to-date international reference for Al-Li material research, alloy development, structural design and aerospace systems engineering.
Part I: Introduction to Al-Li Alloys
Ch 1. Historical Development and Present Status of Al-Li Alloys
Ch 2. Aerostructural Design and its Application to Al-Li Alloys
Part II: Physical Metallurgy
Ch 3. Phase Diagrams and Phase Reactions
Ch 4. Microstructural Evolution in Al-Li Alloys
Ch 5. Texture and Texture Development in Al-Li Alloys
Ch. 6 Strengthening Mechanisms
Part III: Processing Technologies
Ch 7. Melting and Casting
Ch 8. Workability: Rolling, Forging, Extrusion and Forming
Ch 9. Superplasticity in and Superplastic Forming of Al-Li Alloys
Ch 10. Joining Technologies of Al-Li Alloys
Part IV: Mechanical Behavior
Ch 11. Tensile Deformation Behavior and Anisotropy
Ch 12. Fatigue Behavior
Ch 13. Fracture Behavior
Ch 14. Corrosion and SCC Behavior
Part V: Applications
Ch 15. Aerospace Applications of Aluminum-Lithium Alloys
Ch 16. Airworthiness Certification of Metallic Materials
Materials researchers and engineers working in the aluminum and aerospace industries, alloy and structural designers, graduate and post-graduate students in materials science and engineering
Dr Gokhale has a Ph. D. in Metallurgical Engineering from the University of Pittsburgh, where he studied the phenomena of solidification cracking during welding and casting, and related them to the mechanical behaviour of the alloys in the partially solidified state. Since joining the Defence Metallurgical Research Laboratory (DMRL) in 1985, Dr Gokhale has been involved with the development of light alloy cast and wrought products. Since 2004 he has been leading research projects on aluminium based foam for shock and sound absorption, and laser additive manufacturing of stainless steels and superalloys. Currently he heads the Solidification Technology Division and the Extractive Technology Division at DMRL. Dr Gokhale is a life member of the Indian Institute of Metals (and vice chairman of the Hyderabad chapter), Materials Research Society of India and the Institute of Indian Foundrymen, and
- Provides a complete treatment of the new generation of low-density AL-Li alloys, including microstructure, mechanical behavoir, processing and applications
- Covers the history of earlier generation AL-Li alloys, their basic problems, why they were never widely used, and why the new third generation Al-Li alloys could eventually replace not only traditional aluminum alloys but more expensive composite materials
- Contains two full chapters devoted to applications in the aircraft and aerospace fields, where the lighter, stronger Al-Li alloys mean better performing, more fuel-efficient aircraft