Effect of large strain on texture formation behavior of AZ80 magnesium alloy during high temperature deformation

Kwon Hoo Kim, Kazuto Okayasu, Hiroshi Fukutomi

    Abstract

    In previous study, the formation behavior of texture and microstructure in AZ80 magnesium alloy under high temperature deformation was investigated. It was found that the basal texture was formed at stress of more than 15-20MPa and the non-basal texture was formed at stress of less than 15-20MPa. This means that stress of 15-20MPa is the change point of deformation mechanism. Therefore, in this study, uniaxial compression deformation of AZ80 magnesium alloy was carried out at high temperature deformation (stress of 15-20MPa). Behaviors of microstructure and texture development are experimentally studied. The material used in this study is a commercial magnesium alloy extruded AZ80. The uniaxial compression deformation is performed at temperature of 723K and strain rate 3.0×10-3s-1, with a strain range of between -0.4 and -1.3. Texture measurement was carried out on the compression planes by the Schulz reflection method using nickel filtered Cu Kα radiation. EBSD measurement was also conducted in order to observe spatial distribution of orientation. As a result of high temperature deformation, the maximum value of the flow stress is observed at the true stress-strain curves, and the main component of texture and the accumulation of pole density vary depending on deformation condition.

    Original languageEnglish
    Title of host publicationTHERMEC 2016
    PublisherTrans Tech Publications Ltd
    Pages938-942
    Number of pages5
    Volume879
    ISBN (Print)9783035711295
    DOIs
    StatePublished - 2017
    Event9th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC 2016 - Graz, Austria

    Publication series

    NameMaterials Science Forum
    Volume879
    ISSN (Print)02555476

    Other

    Other9th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC 2016
    CountryAustria
    CityGraz
    Period16/5/2916/6/3

    Fingerprint

    Textures
    Temperature
    Magnesium alloys
    Microstructure
    Stress-strain curves
    Plastic flow
    Spatial distribution
    Strain rate
    Poles
    Nickel
    Radiation

    Keywords

    • Grain growth
    • High temperature deformation
    • Magnesium alloy
    • Texture
    • Uniaxial compression

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering

    Cite this

    Kim, K. H., Okayasu, K., & Fukutomi, H. (2017). Effect of large strain on texture formation behavior of AZ80 magnesium alloy during high temperature deformation. In THERMEC 2016. (Vol. 879, pp. 938-942). (Materials Science Forum; Vol. 879). Trans Tech Publications Ltd. DOI: 10.4028/www.scientific.net/MSF.879.938

    Effect of large strain on texture formation behavior of AZ80 magnesium alloy during high temperature deformation. / Kim, Kwon Hoo; Okayasu, Kazuto; Fukutomi, Hiroshi.

    THERMEC 2016. Vol. 879 Trans Tech Publications Ltd, 2017. p. 938-942 (Materials Science Forum; Vol. 879).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Kim, KH, Okayasu, K & Fukutomi, H 2017, Effect of large strain on texture formation behavior of AZ80 magnesium alloy during high temperature deformation. in THERMEC 2016. vol. 879, Materials Science Forum, vol. 879, Trans Tech Publications Ltd, pp. 938-942, 9th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC 2016, Graz, Austria, 29-3 June. DOI: 10.4028/www.scientific.net/MSF.879.938
    Kim KH, Okayasu K, Fukutomi H. Effect of large strain on texture formation behavior of AZ80 magnesium alloy during high temperature deformation. In THERMEC 2016. Vol. 879. Trans Tech Publications Ltd. 2017. p. 938-942. (Materials Science Forum). Available from, DOI: 10.4028/www.scientific.net/MSF.879.938

    Kim, Kwon Hoo; Okayasu, Kazuto; Fukutomi, Hiroshi / Effect of large strain on texture formation behavior of AZ80 magnesium alloy during high temperature deformation.

    THERMEC 2016. Vol. 879 Trans Tech Publications Ltd, 2017. p. 938-942 (Materials Science Forum; Vol. 879).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

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    N2 - In previous study, the formation behavior of texture and microstructure in AZ80 magnesium alloy under high temperature deformation was investigated. It was found that the basal texture was formed at stress of more than 15-20MPa and the non-basal texture was formed at stress of less than 15-20MPa. This means that stress of 15-20MPa is the change point of deformation mechanism. Therefore, in this study, uniaxial compression deformation of AZ80 magnesium alloy was carried out at high temperature deformation (stress of 15-20MPa). Behaviors of microstructure and texture development are experimentally studied. The material used in this study is a commercial magnesium alloy extruded AZ80. The uniaxial compression deformation is performed at temperature of 723K and strain rate 3.0×10-3s-1, with a strain range of between -0.4 and -1.3. Texture measurement was carried out on the compression planes by the Schulz reflection method using nickel filtered Cu Kα radiation. EBSD measurement was also conducted in order to observe spatial distribution of orientation. As a result of high temperature deformation, the maximum value of the flow stress is observed at the true stress-strain curves, and the main component of texture and the accumulation of pole density vary depending on deformation condition.

    AB - In previous study, the formation behavior of texture and microstructure in AZ80 magnesium alloy under high temperature deformation was investigated. It was found that the basal texture was formed at stress of more than 15-20MPa and the non-basal texture was formed at stress of less than 15-20MPa. This means that stress of 15-20MPa is the change point of deformation mechanism. Therefore, in this study, uniaxial compression deformation of AZ80 magnesium alloy was carried out at high temperature deformation (stress of 15-20MPa). Behaviors of microstructure and texture development are experimentally studied. The material used in this study is a commercial magnesium alloy extruded AZ80. The uniaxial compression deformation is performed at temperature of 723K and strain rate 3.0×10-3s-1, with a strain range of between -0.4 and -1.3. Texture measurement was carried out on the compression planes by the Schulz reflection method using nickel filtered Cu Kα radiation. EBSD measurement was also conducted in order to observe spatial distribution of orientation. As a result of high temperature deformation, the maximum value of the flow stress is observed at the true stress-strain curves, and the main component of texture and the accumulation of pole density vary depending on deformation condition.

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