Mechanical properties of SP 5083 aluminum after superplastic forming
- Ford Motor Co., Dearborn, MI (United States). Ford Research Lab.
- Washington State Univ., Pullman, WA (United States). Dept. of Mechanical and Materials Engineering
In order to assess the feasibility of using superplastic forming (SPF) of aluminum for automotive applications, the post-formed properties of commercial SP 5083 aluminum (5083) were investigated. Potential automotive applications of SPF of Al were identified, and in order to address the projected materials requirements of one particular application, microstructural stability, strength, durability, and corrosion resistance of formed 5083 were studied. Samples of 5083 were cut from demonstration parts that had been superplastically formed at 490 C. Tensile strength, grain size, cavitation, and susceptibility to intergranular corrosion were measured as a function of thickness strain. Results suggest that superplastically formed 5083 parts would exhibit mechanical properties similar to Al parts produced from conventional alloys. However, if a 5083 part is exposed to slightly elevated temperature, it may become highly susceptible to intergranular corrosion.
- OSTI ID:
- 194207
- Report Number(s):
- CONF-950201--; ISBN 0-87339-300-7
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
ALUMINIUM BASE ALLOYS
AUTOMOBILES
BULK DENSITY
CHEMICAL COMPOSITION
CHROMIUM ADDITIONS
CORROSION RESISTANCE
EXPERIMENTAL DATA
GRAIN SIZE
HOT WORKING
IRON ADDITIONS
MAGNESIUM ALLOYS
MANGANESE ALLOYS
MATERIALS
OPTICAL MICROSCOPY
POROSITY
SILICON ADDITIONS
STRAINS
TENSILE PROPERTIES