S0305-4-4 Fatigue Strength Diagram of Aluminum Alloys at High Temperature : Part 1 : Division by Fracture Mechanism

2010 ◽  
Vol 2010.1 (0) ◽  
pp. 155-156
Author(s):  
Tomohiro SUZUKI ◽  
Shoji HOTTA
Keyword(s):  
High Temperature ◽  
Fatigue Strength ◽  
Aluminum Alloys ◽  
Fracture Mechanism

Effect of Rolling Parameters on the Properties of Al-Fe-V Sheet Rolled on an Experimental Mill

1985 ◽  
Vol 58 ◽  
Author(s):  
A. Brown ◽  
D. Raybould
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Aluminum Alloys ◽  
Room Temperature ◽  
Thermomechanical Processing ◽  
High Temperature Strength ◽  
Rapidly Solidified ◽  
Large Sheet ◽  
Room Temperature Strength

ABSTRACTIn recent years, interest in high temperature aluminum alloys has increased. However, nearly all the data available is for simple extrusions. This paper looks at the properties of sheet made from a rapidly solidified Al-10Fe-2.5V-2Si alloy. The sheet is made by direct forging followed by hot rolling, this is readily scalable, so allowing the production of large sheet. The room temperature strength and fracture toughness of the sheet are comparable to those of 2014-T6. The high temperature strength, specific stiffness and corrosion resistance are excellent. Recently, improved thermomechanical processing and new alloys have allowed higher strengths and fracture toughness values to be obtained.

scholarly journals Training high-strength aluminum alloys to withstand fatigue

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Qi Zhang ◽  
Yuman Zhu ◽  
Xiang Gao ◽  
Yuxiang Wu ◽  
Christopher Hutchinson
Keyword(s):  
Fatigue Strength ◽  
Aluminum Alloys ◽  
Mechanical Energy ◽  
High Strength ◽  
Weak Points ◽  
Microstructural Design ◽  
Light Weighting ◽  
The Difference ◽  
High Strength Aluminum Alloys ◽  
Static And Dynamic Loading

Abstract The fatigue performance of high strength aluminum alloys used in planes, trains, trucks and automobiles is notoriously poor. Engineers must design around this important limitation to use Al alloys for light-weighting of transportation structures. An alternative concept for microstructure design for improved fatigue strength is demonstrated in this work. Microstructures are designed to exploit the mechanical energy imparted during the initial cycles of fatigue to dynamically heal the inherent weak points in the microstructure. The fatigue life of the highest strength Aluminum alloys is improved by 25x, and the fatigue strength is raised to ~1/2 the tensile strength. The approach embraces the difference between static and dynamic loading and represents a conceptual change in microstructural design for fatigue.

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