Development of method for measuring mechanical properties of semi-liquid Al-Mg alloy by high frequency induction heating

Atsushi Zama, Takashi Nakazawa, Kazuhiro Toshimitsu, Makoto Yoshida

    Research output: Contribution to journalArticle

    5 Citations (Scopus)

    Abstract

    Solidification cracking is one of the defects of casting. In order to increase productivity of DC casting and various shape casting processes, predicting the occurrence of solidification cracking by using CAE (Computer Aided Engineering) should be essential. Therefore, it is necessary to obtain mechanical properties of solid-liquid coexistence alloys. However, in the previous reports, flat distribution of temperature in the gage length was not ensured. In this study, tensile test device for a semi-liquid Al-Mg alloy with 2°C of the temperature distribution in the gage length (Max. 10mm) was developed. Tensile strain was measured by using in-situ observation of marker on the surface of the specimen. As the result, stress-strain curves and fracture strain in various temperatures on the semi-liquid Al-4.3mass%Mg alloy were measured. It is also found that tensile strain tends to be higher at neighborhood of the crack. Thus, strain depends on the gage length. From the observation of the fracture surface and estimation of Scheil-Gulliver micro-segregation, microstructure of the specimen were supposed to change due to the heating process.

    Original languageEnglish
    Pages (from-to)181-186
    Number of pages6
    JournalKeikinzoku/Journal of Japan Institute of Light Metals
    Volume61
    Issue number5
    DOIs
    Publication statusPublished - 2011

    Fingerprint

    Induction heating
    Gages
    Casting
    Tensile strain
    Mechanical properties
    Solidification
    Liquids
    Industrial heating
    Computer aided engineering
    Stress-strain curves
    Temperature distribution
    Productivity
    Cracks
    Temperature
    Defects
    Microstructure

    Keywords

    • Cracking
    • Die-casting
    • Direct-chill casting
    • Hot tear
    • Solidification

    ASJC Scopus subject areas

    • Materials Chemistry
    • Metals and Alloys
    • Mechanical Engineering
    • Mechanics of Materials

    Cite this

    Development of method for measuring mechanical properties of semi-liquid Al-Mg alloy by high frequency induction heating. / Zama, Atsushi; Nakazawa, Takashi; Toshimitsu, Kazuhiro; Yoshida, Makoto.

    In: Keikinzoku/Journal of Japan Institute of Light Metals, Vol. 61, No. 5, 2011, p. 181-186.

    Research output: Contribution to journalArticle

    @article{9817e5ad2f6747b0948f9d24ec8c9484,
    title = "Development of method for measuring mechanical properties of semi-liquid Al-Mg alloy by high frequency induction heating",
    abstract = "Solidification cracking is one of the defects of casting. In order to increase productivity of DC casting and various shape casting processes, predicting the occurrence of solidification cracking by using CAE (Computer Aided Engineering) should be essential. Therefore, it is necessary to obtain mechanical properties of solid-liquid coexistence alloys. However, in the previous reports, flat distribution of temperature in the gage length was not ensured. In this study, tensile test device for a semi-liquid Al-Mg alloy with 2°C of the temperature distribution in the gage length (Max. 10mm) was developed. Tensile strain was measured by using in-situ observation of marker on the surface of the specimen. As the result, stress-strain curves and fracture strain in various temperatures on the semi-liquid Al-4.3mass{\%}Mg alloy were measured. It is also found that tensile strain tends to be higher at neighborhood of the crack. Thus, strain depends on the gage length. From the observation of the fracture surface and estimation of Scheil-Gulliver micro-segregation, microstructure of the specimen were supposed to change due to the heating process.",
    keywords = "Cracking, Die-casting, Direct-chill casting, Hot tear, Solidification",
    author = "Atsushi Zama and Takashi Nakazawa and Kazuhiro Toshimitsu and Makoto Yoshida",
    year = "2011",
    doi = "10.2464/jilm.61.181",
    language = "English",
    volume = "61",
    pages = "181--186",
    journal = "Keikinzoku/Journal of Japan Institute of Light Metals",
    issn = "0451-5994",
    publisher = "Keikinzoku Gakkai/Japan Institute of Light Metals",
    number = "5",

    }

    TY - JOUR

    T1 - Development of method for measuring mechanical properties of semi-liquid Al-Mg alloy by high frequency induction heating

    AU - Zama, Atsushi

    AU - Nakazawa, Takashi

    AU - Toshimitsu, Kazuhiro

    AU - Yoshida, Makoto

    PY - 2011

    Y1 - 2011

    N2 - Solidification cracking is one of the defects of casting. In order to increase productivity of DC casting and various shape casting processes, predicting the occurrence of solidification cracking by using CAE (Computer Aided Engineering) should be essential. Therefore, it is necessary to obtain mechanical properties of solid-liquid coexistence alloys. However, in the previous reports, flat distribution of temperature in the gage length was not ensured. In this study, tensile test device for a semi-liquid Al-Mg alloy with 2°C of the temperature distribution in the gage length (Max. 10mm) was developed. Tensile strain was measured by using in-situ observation of marker on the surface of the specimen. As the result, stress-strain curves and fracture strain in various temperatures on the semi-liquid Al-4.3mass%Mg alloy were measured. It is also found that tensile strain tends to be higher at neighborhood of the crack. Thus, strain depends on the gage length. From the observation of the fracture surface and estimation of Scheil-Gulliver micro-segregation, microstructure of the specimen were supposed to change due to the heating process.

    AB - Solidification cracking is one of the defects of casting. In order to increase productivity of DC casting and various shape casting processes, predicting the occurrence of solidification cracking by using CAE (Computer Aided Engineering) should be essential. Therefore, it is necessary to obtain mechanical properties of solid-liquid coexistence alloys. However, in the previous reports, flat distribution of temperature in the gage length was not ensured. In this study, tensile test device for a semi-liquid Al-Mg alloy with 2°C of the temperature distribution in the gage length (Max. 10mm) was developed. Tensile strain was measured by using in-situ observation of marker on the surface of the specimen. As the result, stress-strain curves and fracture strain in various temperatures on the semi-liquid Al-4.3mass%Mg alloy were measured. It is also found that tensile strain tends to be higher at neighborhood of the crack. Thus, strain depends on the gage length. From the observation of the fracture surface and estimation of Scheil-Gulliver micro-segregation, microstructure of the specimen were supposed to change due to the heating process.

    KW - Cracking

    KW - Die-casting

    KW - Direct-chill casting

    KW - Hot tear

    KW - Solidification

    UR - http://www.scopus.com/inward/record.url?scp=79959953797&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=79959953797&partnerID=8YFLogxK

    U2 - 10.2464/jilm.61.181

    DO - 10.2464/jilm.61.181

    M3 - Article

    AN - SCOPUS:79959953797

    VL - 61

    SP - 181

    EP - 186

    JO - Keikinzoku/Journal of Japan Institute of Light Metals

    JF - Keikinzoku/Journal of Japan Institute of Light Metals

    SN - 0451-5994

    IS - 5

    ER -