Sep 1, 2023 · We demonstrate that an ordered Al monolayer forms on the Ti-terminated {0001} TiB2 surface; then, the surrounding Al atoms are initiated to form an island-shaped Al nucleus with face-centered cubic {111} stacking without the assistance of a Ti-rich buffer layer.

Jan 1, 2012 · Al-TiB2 composite is a metal matrix composite (MMC) that can be manufactured using the in-situ salt-metal reaction. With TiB2 as the particulate addition the properties of Al 6061 alloy can be greatly improved. The addition of TiB2 to …

Feb 4, 2024 · Herein, we examine the influence of nano-TiB 2 addition on the ignition and combustion properties of CuO/Al by adjusting the Al-TiB 2 binary fuel distribution. Magnetron-sputtered CuO/Al-TiB 2 multilayers were prepared, and their ignition and combustion characteristics were studied.

Feb 1, 2015 · Al–Ti–B is the most widely used grain refiner for many Al alloys. However, the precise mechanism of grain refinement is still not clear after 60 years of intensive research. This work aims to further our understanding on the grain …

Feb 26, 2020 · Al-TiB 2 composites obtained by self-propagating high-temperature synthesis (SHS) or combustion synthesis of Al-Ti-B powder mixture have a high potential to be applied in automobile and aerospace industries [1,2,3].

Nov 25, 2014 · Al-Ti-B type master alloys have been widely used in the grain refinement of aluminum since 1940s. The introduction of Al 3 Ti and TiB 2 (AlB 2) particles reduces the grain sizes down to about 200 micrometer level and makes aluminum alloys castable.

Apr 28, 2024 · This paper investigates the structure and phase composition of Al–TiB 2 metal matrix composites prepared from the Al–Ti–B system powder using self-propagating high-temperature synthesis (SHS) in semi-industrial conditions (the amount of the initial powder mixture was 1000 g).

Oct 7, 2022 · In this paper, the electronic properties, adhesion work, interface stability, and fracture toughness of the Al (111)/TiB 2 (0001) interfaces are investigated by the first principles calculations method.

May 1, 2009 · An in situ Al–TiB 2 nanocomposite was synthesized by mechanical alloying (MA) of pure Ti, B and Al powder mixture in a planetary ball mill. A double-step process was used to prevent the formation of undesirable phases like Al 3 Ti intermetallic compound.

Mar 1, 2021 · Here, we report results from an atomic-scale experimental investigation of the heterogeneous nucleation interface of TiB 2 in Al-Cu based alloys as well as in an Al-5Ti-1B grain refiner employed in these Al-Cu based alloys.