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Mechanical Property Evolution and Thermal Remediation of Aluminum Magnesium 5xxx Alloys Following Low and Intermediate Temperature Thermal Exposure

Seifi, Seyed Mohsen
http://orcid.org/0000-0001-8385-2337
http://rave.ohiolink.edu/etdc/view?acc_num=case1365507691

Abstract Details

2013, Master of Sciences, Case Western Reserve University, Materials Science and Engineering.
Al-Mg 5xxx alloys are desirable in a wide array of structural applications that require a weldable alloy with good corrosion resistance. However, mechanical property changes may result from intermediate temperature exposures. Commercially available 5xxx alloy plates have been thermally treated up to 10,000 hrs. (13 months) at temperatures of 60°C, 70°C, 80°C, 100°C, and 175°C. Room temperature hardness, tension and fatigue crack growth tests have been completed to determine changes in mechanical properties in the LT orientation. Longitudinal splitting in the short-transverse (ST) direction has been observed during fatigue after sufficient time and temperature exposure combinations. Fracture and fatigue testing has additionally been employed on long-time sensitized material. The evolution of properties (i.e. mechanical/fracture/fatigue, corrosion resistance, etc.) and microstructures (e.g. grain boundary segregation, grain boundary precipitation, etc.) with thermal exposure at these (and lower) temperatures has significant practical implications for various structural applications. The effects of thermal remediation treatments are also described.
John Lewandowski (Advisor)
David Schwam (Committee Member)
Carter Jennifer (Committee Member)
183 p.
Materials Science; Metallurgy

Recommended Citations

Citations

  • Seifi, S. M. (2013). Mechanical Property Evolution and Thermal Remediation of Aluminum Magnesium 5xxx Alloys Following Low and Intermediate Temperature Thermal Exposure [Master's thesis, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1365507691

    APA Style (7th edition)

  • Seifi, Seyed Mohsen. Mechanical Property Evolution and Thermal Remediation of Aluminum Magnesium 5xxx Alloys Following Low and Intermediate Temperature Thermal Exposure. 2013. Case Western Reserve University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case1365507691.

    MLA Style (8th edition)

  • Seifi, Seyed Mohsen. "Mechanical Property Evolution and Thermal Remediation of Aluminum Magnesium 5xxx Alloys Following Low and Intermediate Temperature Thermal Exposure." Master's thesis, Case Western Reserve University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=case1365507691

    Chicago Manual of Style (17th edition)

case1365507691
430
© 2013, all rights reserved.
This open access ETD is published by Case Western Reserve University School of Graduate Studies and OhioLINK.