Dynamic characterization of Cu-Zr binary bulk metallic glasses (A Molecular Dynamics Study)

In the present study, molecular dynamics simulation employing embedded atom method (EAM) potential is performed to investigate the formation and characterization of CuZr bulk metallic glasses (BMGs). To elucidate the effect of component concentration of three samples of BMGs including Cu25-Zr75, Cu50-Zr50 and Cu75-Zr25 that are formed by melt quenching. The local structure of BMGs is analyzed by means of radial distribution function (RDF) and local atomic number density Ď . The mechanical behavior of three compositions is investigated using uniaxial compressive loading at a constant strain rate, It is revealed from the results that yield strength increases with increasing Cu-concentration. Thermal expansion of CuZr BMGs is examined and variation in length and volume is measured. The analysis revealed that Cu25-Zr75 and Cu50-Zr50 exhibited the typical expansion behavior while Cu75-Zr25 showed an anomalous behavior.The accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author