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Comparison of Wear Resistance in Polycrystalline and Monocrystalline Iron

Liu Zhiming, Zhang Qiang, Liu Fangying, Zhang Hezhe

Archives of Metallurgy and Materials

2023

Vol. 68, iss. 1

15--20

In the present research, we used molecular dynamics simulation to determine the effect of cutting parameters on micro-grain boundary structures and Burgers vector distribution in single crystal iron and polycrystalline iron materials. The result showed that the destruction of the lattice in polycrystalline iron caused by the cutting tool was restricted to the contact surface area. In addition, in the precision machining process, a higher refining grain was observed on the iron surface. During the cutting process of single crystal iron, large-scale slip occurred along the <111> crystal direction on the {110} crystal plane. And the slip presented an annular shape.