Lattice Strain In Aluminium After Plastic Deformation Process at A Cryogenic Temperature

International Conference on Mechanical Engineering Research and Application

Aminnudin^1

Jurusan Teknik Mesin-Universitas Negeri Malang, Jl Semarang No 5, Malang Jawa Timur

65143, Indonesia^1

关键词: Cryogenic temperatures;    Dislocation densities;    Interatomic spacing;    Lattice strain;    Lightweight metals;    Low temperatures;    Test apparatus;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/494/1/012016/pdf
DOI  :  10.1088/1757-899X/494/1/012016

来源: IOP

【 摘 要 】

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...