Fracture toughness and tensile behavior of multi-layer laminated metal composite of Al 6090-25 vol % SiCp and Al 5182
- Lawrence Livermore National Lab., CA (United States)
- Stanford Univ., Stanford, CA (United States). Dept. of Materials Science and Engineering
Multilayer laminates of varying volume percentage (from 50-50 to 3-97) of Al 5182 and Al 6090 metal matrix composite containing 25 vol % SiC particulate were made by a press bonding method. The yield and tensile strengths of these laminated metal composites were slightly lower than the rule-of-averages values of the component materials. As the volume fraction of the ductile component decreased from 50% to about 3%, the yield and tensile strengths increased from those of the 50-50 laminates, and the fracture toughness also showed a slightly increasing tendency. The ductility of the laminate was insensitive to the change in volume fraction of the ductile component. Fractography on tensile and fracture toughness tested samples showed that crack propagation in the laminates was blunted by delamination ahead of the growing crack and by plastic deformation in the ductile component.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 57632
- Report Number(s):
- UCRL-ID-119966; ON: DE95011421
- Resource Relation:
- Other Information: PBD: 8 Feb 1995
- Country of Publication:
- United States
- Language:
- English
Similar Records
Processing and mechanical properties of laminated metal composites of Al 6090-25 vol % SiC{sub p} and Al 5182
Processing and mechanical properties of laminated metal composites of Al/Al-25 vol. % SiC and ultrahigh carbon steel/brass