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金属学报  2003 

ON THE CHARACTERIZATION OF HARDENING OF GRINDING AFFECTED LAYER OF STEELS IN HARD STATE
硬状态钢铁材料磨削影响层硬化的表征

Keywords: alloy steel,half-width,grinding,hard state,plastic deformation
钢铁材料
,半高宽,磨削,硬状态,塑性变形,硬化

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Abstract:

The micro-hardness and hall width values of X ray diffraction profiles are frequently used to characterize the hardening state of the grinding affected layers. However, for the grinding affected layers of two kinds of alloy steel treated in the hard state, the micro hardness results shown in this article indicate that the layers are work hardened by grinding plastic deformation while it greatly decreases the half-width values. Accordingly, the half- width values could not correctly describe the work hardening effect of ground surface layers of steels in the hard state. A model demonstrating that the plastic deformation caused by grinding reduces the half width values by decreasing the micro -stress is presented.

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