Open AccessDrawing the Tensile Curve for Pure Metals and Alloys Depending On Crystal Structure and Acoustic Impedance
Author(s) -
Arshed Abdulhamed Mohammed,
Wessam Al Azzawi
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1076/1/012084
Subject(s) - materials science , crystal structure , diffraction , young's modulus , acoustic impedance , modulus , crystal (programming language) , bulk modulus , electrical impedance , cubic crystal system , elasticity (physics) , single crystal , ultimate tensile strength , composite material , crystallography , condensed matter physics , optics , physics , chemistry , computer science , programming language , quantum mechanics
A new method to predict the stress-strain relation of the pure metals and alloys has been presented in this paper by using the acoustic impedance property. The method involves developing new algorithms that were programmed in a MATLAB code. Also, it compromises the experimental measurement of some physical properties, such as longitudinal wave velocity, density, and crystal structure. The study considered 19-samples, which have been put in three different groups depending on the crystal structure (seven FCC samples, six BCC samples, and six HCB samples). The samples’ crystal structure was examined using the X-ray diffraction method before the samples’ density, and longitudinal wave velocity were experimentally measured. To evaluate the validity of the developed model, a comparison between its prediction for the stress-strain relation and the corresponding curves in the literature was done. The results, also, verified the existence of a relation between pressure transmission coefficient (PrTr) and each of the σu, σy, and modulus of elasticity (E) properties for the metals in the same crystal structure group.