tailieunhanh - ALUMINIUM ALLOYS, THEORY AND APPLICATIONS_2

The present book enhances in detail the scope and objective of various developmental activities of the aluminium alloys. A lot of research on aluminium alloys has been performed. Currently, the research efforts are connected to the relatively new methods and processes. We hope that people new to the aluminium alloys investigation will find this book to be of assistance for the industry and university fields enabling them to keep up-to-date with the latest developments in aluminium alloys research | Part 3 Fatigue Fracture and Cyclic Deformation Behaviour 9 Cyclic Deformation Behaviour and Its Optimization at Elevated Temperature Patiphan Juijerm1 and Igor Altenberger2 Department of Materials Engineering Kasetsart University 2WIELAND-WERKE AG Central Laboratory Research Development Thailand 2Germany 1. Introduction Recently low-weight components are particularly required for environmental ecological and economical aspects. Therefore light-weight metals alloys are frequently mentioned and selected for many applications where low density and high strength to weight ratios are an important consideration. Consequently development and improvement in the field of light-weight alloys can be seen continuously for advanced applications in automotive as well as aerospace industries where many applications involved about elevated temperature are increase. One of the most important light-weight metals is aluminium and its alloys which possess many attractive characteristics including excellent corrosion resistance in most environments reflectivity high strength and stiffness to weight ratio good formability weldability and recycling potential. Certainly these advantageous properties make them ideal candidates to replace heavier materials steel or copper for several industries. Therefore mechanical behaviour of aluminium alloys becomes more and more important especially under cyclic loading at room and elevated temperature due to failures occurring in machinery components are almost entirely fatigue failures. Accordingly cyclic deformation behaviour of aluminium alloys was investigated and also improved by well-known mechanical surface treatments . shot peening deep rolling and laser shock peening. Deep rolling is one of the most well-known mechanical surface treatment methods and exhibits a great depth of near-surface work hardening state and compressive residual stresses serving to inhibit or retard fatigue crack initiation as well as crack growth Scholtes 1997 Wagner

• Cơ khí - Chế tạo máy
• Aluminium Alloy
• Plastic Deformations
• Dissimilar Alloys
• Fatigue Behaviour
• Welded Joints
• Elevated Temperature
• Aluminium alloy 5083
• Fiction stir welding
• Mechanical properties
• Friction stir welded aluminium alloy 5083
• Journal of Science and Technology
• Simulation studies on chip formation process
• High speed milling of aluminium alloy
• Equivalent plastic strain
• Simulation using finite element
• Improvement of aluminium alloy
• Inclusion of agro industrial waste
• Mechanical properties of the developed material
• Rice husk ash
• Agricultural and agro industrial waste products
• Mechanical sciences
• The modified Mohr Coulomb fracture model
• AA6016 aluminium alloy
• Numerical simulations
• Crack propagation
• Uncoupled damage
• Numerical Modelling
• Designing Aluminium Extrusion
• Stir Channeling
• Al Mg Si Extrusions
• Hot Working
• Vietnam Journal of Science and Technology
• Fatigue crack growth at the representative zones
• aluminum alloy 6063 T5
• friction stir welding
• fatigue crack growth
• Cracks in Al/Cu
• Bimetal Al/Cu
• Grain structure in Al/Cu