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Mechanical Performance and Structure-Property Relations in 6061B Aluminum Metal Matrix Composites

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2019, Master of Sciences (Engineering), Case Western Reserve University, Materials Science and Engineering.
The effects of processing (e.g., HIP, CIP+Upset, Extrusion) and reinforcement size/ volume fraction on the mechanical behavior of 6061B Aluminum/SiCp composites were determined at room temperature. Materials sold under the brand names SupremEX 620XF (6061B/SiCp/20%/0.7µm) and 640XA (6061B/SiCp/40%/3µm) were provided by collaborators at Materion Brush Incorporated. Mechanical performance was evaluated by uniaxial tension testing and compared to 6061 T6. Stiffness was not dependent upon processing conditions, and increased from 67 GPa to 94 GPa (40%) and 135 GPa (101%) for SupremEX 620XF and 640XA. Strength and ductility were found to be greatly dependent upon processing conditions. Yield strength increased from 276 MPa to 338-413 MPa (+22-50%) and 420-506 MPa (+52-83%). Ultimate tensile strength increased from 310 MPa to 399-481 MPa (+28-55%) and 450-531 MPa (+45-71%), while strain at failure was reduced from 17% to 3.1-8.5% (-50-82%) and 0.2-4.2% (-75-99%). XRD, metallography, and SEM fracture surface analysis supplemented these findings.
Matthew Willard (Committee Chair)
John Lewandowski (Committee Member)
Jennifer Carter (Committee Member)
246 p.

Recommended Citations

Citations

  • Park, C. (2019). Mechanical Performance and Structure-Property Relations in 6061B Aluminum Metal Matrix Composites [Master's thesis, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1547842396716777

    APA Style (7th edition)

  • Park, Conrad. Mechanical Performance and Structure-Property Relations in 6061B Aluminum Metal Matrix Composites. 2019. Case Western Reserve University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case1547842396716777.

    MLA Style (8th edition)

  • Park, Conrad. "Mechanical Performance and Structure-Property Relations in 6061B Aluminum Metal Matrix Composites." Master's thesis, Case Western Reserve University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=case1547842396716777

    Chicago Manual of Style (17th edition)