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Exploiting superior tensile properties of a novel network-structure AlA206 matrix composite by hybridizing micron-sized Al3Ti with Al2O3 nano particulates

Journal Article


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Abstract


  • In this study, semi-solid stir casting and ball milling processes are combined into an integrated composite fabrication process. Two different architectures were utilized to incorporate reinforcing particle into semi-solid alloy i.e., (i) ball milling of K2TiF6 and aluminum powder for 5h and subsequently with nano-alumina particles (Al2O3np) for 1h and (ii) ball milling of K2TiF6, Al2O3np and aluminum powder for 2h. Accordingly, the milled powders were incorporated into molten AlA206 alloy using a non-contact ultrasonic vibration method. The effect of milling procedure on microstructural evolution and tensile properties were then explored. Two different microstructures were characterized including well-distributed Al2O3np and Al3Ti particles (Al3Tip) and a network-structure containing Al3Tip+Al2O3np. This unique architecture of network-structure brought about increment in tensile properties compared to well-distributed reinforcement particles, ascribed to the strewing of Al3Tip+Al2O3np around matrix grain boundaries, act as a three-dimension skeletal structure with high local volume fraction of Al3Tip+Al2O3np.

UOW Authors


  •   Tahamtan, S (external author)
  •   Halvaee, A (external author)
  •   Emamy, M (external author)
  •   Jiang, Zhengyi
  •   Fadavi Boostani, Alireza (external author)

Publication Date


  • 2014

Citation


  • Tahamtan, S., Halvaee, A., Emamy, M., Jiang, Z. Y. & Boostani, A. Fadavi. (2014). Exploiting superior tensile properties of a novel network-structure AlA206 matrix composite by hybridizing micron-sized Al3Ti with Al2O3 nano particulates. Journal of Materials Science and Engineering A, 619 190-198.

Scopus Eid


  • 2-s2.0-84908007248

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=4140&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3124

Number Of Pages


  • 8

Start Page


  • 190

End Page


  • 198

Volume


  • 619

Abstract


  • In this study, semi-solid stir casting and ball milling processes are combined into an integrated composite fabrication process. Two different architectures were utilized to incorporate reinforcing particle into semi-solid alloy i.e., (i) ball milling of K2TiF6 and aluminum powder for 5h and subsequently with nano-alumina particles (Al2O3np) for 1h and (ii) ball milling of K2TiF6, Al2O3np and aluminum powder for 2h. Accordingly, the milled powders were incorporated into molten AlA206 alloy using a non-contact ultrasonic vibration method. The effect of milling procedure on microstructural evolution and tensile properties were then explored. Two different microstructures were characterized including well-distributed Al2O3np and Al3Ti particles (Al3Tip) and a network-structure containing Al3Tip+Al2O3np. This unique architecture of network-structure brought about increment in tensile properties compared to well-distributed reinforcement particles, ascribed to the strewing of Al3Tip+Al2O3np around matrix grain boundaries, act as a three-dimension skeletal structure with high local volume fraction of Al3Tip+Al2O3np.

UOW Authors


  •   Tahamtan, S (external author)
  •   Halvaee, A (external author)
  •   Emamy, M (external author)
  •   Jiang, Zhengyi
  •   Fadavi Boostani, Alireza (external author)

Publication Date


  • 2014

Citation


  • Tahamtan, S., Halvaee, A., Emamy, M., Jiang, Z. Y. & Boostani, A. Fadavi. (2014). Exploiting superior tensile properties of a novel network-structure AlA206 matrix composite by hybridizing micron-sized Al3Ti with Al2O3 nano particulates. Journal of Materials Science and Engineering A, 619 190-198.

Scopus Eid


  • 2-s2.0-84908007248

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=4140&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3124

Number Of Pages


  • 8

Start Page


  • 190

End Page


  • 198

Volume


  • 619