|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Aluminum Alloys, Processing and Characterization
||I-3: Effect of Ni Addition on Microstructure and Tensile Properties of Squeeze Cast Aluminum Alloy A380
||Li Fang, Xuezhi Zhang, Junxiang Zhou, Henry Hu, Xueyuan Nie, Jimi Tjong
|On-Site Speaker (Planned)
In this study, the influence of transition alloying element nickel to the mechanical properties of squeeze cast aluminum alloy A380 as one of the most common hypoeutectic Al-Si-Cu alloys used in the automotive industry was investigated. Nickel (Ni) addition varying from 0.5 up to 2. 0 wt. % was introduced into liquid A380. The alloyed melt was squeeze cast under an applied pressure of 90 MPa. The results of tensile testing on the Ni-containing A380 alloys show that Ni is an effective additive for improving their mechanical properties, in particularly, tensile strengths at room temperature. The as-cast microstructures of the squeeze cast conventional and Ni-containing alloys were observed by an optical microscope (OM) Examination of the analyzed microstructures indicate that the complex Ni-containing intermetallic phases forms once Ni is introduced. The presence of the Ni-containing intermetallic phases should be responsible to the improvement of mechanical properties. Based on the density measurements, it is found that the introduction of 2.0 wt% Ni into the A380 results in a trivial effect on its density by only 0.5%.
||Planned: Light Metals