EFFECTS OF TEMPERATURE ON MECHANICAL RESPONSES OF Cu50Zr50 METALLIC GLASSES IN INDENTATION AND SCRATCHING PROCESS
Through molecular dynamics simulations, the mechanical responses of Cu50Zr50 metallic glasses were investigated during the indentation and scratching process. The effects of different temperatures were analyzed through the surface morphology, pile-up height, hardness, machining forces, resistance coefficient, and radial distribution function (RDF) diagram. The results indicated that the pile-up height and the hardness reduce as the temperature increases. The chip height is the lowest and the scratching groove is the smallest at the highest temperature of 900 K. The forces and the resistance coefficient curves are very close in the temperature range from 300 to 700 K, while they are lower at 900 K. The peak point of RDF decreases as the increasing temperature.
Thornby, J., Harris, A., Bird, A., Beake, B., Manakari, V. B., Gupta, M., & Haghshenas, M., Micromechanics and indentation creep of magnesium carbon nanotube nanocomposites: 298 K–573 K. Materials Science and Engineering: A, 801, 140418, 2021.
Wang, Y., Zhang, L., Ren, Y., Li, Z., Slater, C., Peng, K., ... & Zhao, Y., Effect of compression temperature on deformation of CaO–CaS–Al2O3–MgO inclusions in pipeline steel. Journal of Materials Research and Technology, 11, 1220-1231, 2021.
Ma, X., Ma, J., Bian, X., Tong, X., Han, D., Jia, Y., ... & Wang, G., The role of nano-scale elastic heterogeneity in mechanical and tribological behaviors of a Cu–Zr based metallic glass thin film. Intermetallics, 133, 107159, 2021.
Belashchenko, D. K., Computer Modeling of Sodium in the Embedded Atom Model. Russian Journal of Physical Chemistry A, 95(1), 106-118, 2021.
Torikai, M., Free-Energy Functional Approach to Inverse Problems for Self-Assembly of Three-Dimensional Crystals. Journal of the Physical Society of Japan, 90(2), 024603, 2021.
Wu, C. D., Fang, T. H., & Chao, K. C., Effects of temperature and alloy composition on nanomechanical properties of ZrCu metallic glass under tension. Current Nanoscience, 15(5), 481-485, 2019.
Linh, P. T. H., & Tran, A. S., Effects of Indenter Radius on Mechanical Properties and Deformation Behavior of Cu50zr50 Metallic Glasses in Indentation and Scratching Process. UTEHY Journal of Science and Technology, 23, 7-12, 2019.
Yovanovich, M., Micro and macro hardness measurements, correlations, and contact models. In 44th AIAA aerospace sciences meeting and exhibit, p. 979, 2006, January.
Burris, D. L., & Sawyer, W. G., Addressing practical challenges of low friction coefficient measurements. Tribology letters, 35(1), 17-23, 2009.
Tran, A. S., & Fang, T. H., Effects of grain size and indentation sensitivity on deformation mechanism of nanocrystalline tantalum. International Journal of Refractory Metals and Hard Materials, 92, 105304, 2020.
Wang, R., Wang, X., Li, D., & Li, W., A novel temperature-dependent hardness model for high-temperature structural ceramics. Ceramics International, 47(1), 1462-1465, 2021.
Celtek, M., & ŞENGÜL, S., Effects of cooling rate on the atomic structure and glass formation process of Co90 Zr10 metallic glass investigated by molecular dynamics simulations. Turkish Journal of Physics, 43(1), 11-25, 2019.