Aminnudin
Aluminium is a lightweight metal that is difficult to improve its mechanical properties. High plastic deformation on aluminium makes mechanical properties increase slightly. Aluminium at low temperatures has a lower inter-atomic spacing than at room temperature. Deformation at a cryogenic temperature is expected to increase the mechanical properties higher than at room temperature. The increasing mechanical properties is caused by increasing deformation density. The dislocation density of the aluminium can be predicted by measuring the lattice strain. In this paper, we used X-ray diffraction to measure the lattice strain. The aluminium used in this study was pure industrial aluminium, with a size of 10 x 10 mm and a length of 100 mm respectively. The plastic deformation process was carried out at -75 ° C using the impact test apparatus. The results of lattice strain measurement were verified throughmicrohardness testing. The measurement showed that the plastic deformation process at a cryogenic temperature increased the lattice strain; this complies with microhardness measurementStart your abstract here... © Published under licence by IOP Publishing Ltd.
Jurusan Teknik Mesin-Universitas Negeri Malang, Jl Semarang No 5, Malang Jawa Timur, 65143, Indonesia
