Role of SiC in grain refinement of aluminum-free Mg-Zn alloys
Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
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Magnesium Technology 2016 - Held During TMS 2016: 145th Annual Meeting and Exhibition. ed. / Alok Singh; Kiran Solanki; Michele Viola Manuel; Neale R. Neelameggham. The Minerals, Metals & Materials Society, 2016. p. 177-181 (Magnesium Technology; Vol. 2016-January).
Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
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TY - CHAP
T1 - Role of SiC in grain refinement of aluminum-free Mg-Zn alloys
AU - Gu, Jian
AU - Huang, Yuanding
AU - Kainer, Karl Ulrich
AU - Hort, Norbert
N1 - Conference code: 145
PY - 2016
Y1 - 2016
N2 - The addition of SiC particles effectively refined the grains of a range of aluminum-free Mg-Zn alloys. Simultaneously, the corresponding mechanism of grain refinement has also been discussed. In the present work the effect of SiC on the microstructure of as-cast Mg-Zn alloy was investigated using optical and scanning electron microscopy. The results show that the primary alloying element Zn segregates at the grain boundaries and the phase Mg7Zn3 locates inside Mg matrix of Mg-Zn grains. The efficiency of SiC as a grain refiner can be seen with 45% average grain size reduction of Mg-3Zn alloy at 0.3 wt% SiC addition, indicating an existence of close relationship between the contents of SiC and Zn to affect the grain size. The interaction between SiC and the impurities such as Mn and Fe in Mg-Zn alloys is suggested to explain the grain refinement.
AB - The addition of SiC particles effectively refined the grains of a range of aluminum-free Mg-Zn alloys. Simultaneously, the corresponding mechanism of grain refinement has also been discussed. In the present work the effect of SiC on the microstructure of as-cast Mg-Zn alloy was investigated using optical and scanning electron microscopy. The results show that the primary alloying element Zn segregates at the grain boundaries and the phase Mg7Zn3 locates inside Mg matrix of Mg-Zn grains. The efficiency of SiC as a grain refiner can be seen with 45% average grain size reduction of Mg-3Zn alloy at 0.3 wt% SiC addition, indicating an existence of close relationship between the contents of SiC and Zn to affect the grain size. The interaction between SiC and the impurities such as Mn and Fe in Mg-Zn alloys is suggested to explain the grain refinement.
KW - Grain refinement
KW - Magnesium alloys
KW - SiC inoculation
KW - Solidification
KW - Engineering
UR - http://www.scopus.com/inward/record.url?scp=84975041739&partnerID=8YFLogxK
U2 - 10.1002/9781119274803.ch36
DO - 10.1002/9781119274803.ch36
M3 - Article in conference proceedings
AN - SCOPUS:84975041739
T3 - Magnesium Technology
SP - 177
EP - 181
BT - Magnesium Technology 2016 - Held During TMS 2016
A2 - Singh, Alok
A2 - Solanki, Kiran
A2 - Manuel, Michele Viola
A2 - Neelameggham, Neale R.
PB - The Minerals, Metals & Materials Society
T2 - 145th Annual Meeting and Exhibition of Magnesium Technology - TMS 2016
Y2 - 14 February 2016 through 18 February 2016
ER -