Wear behavior of austenite steel matrix composite reinforced by in situ granular eutectics in impact abrasion

Wear behavior of austenite steel matrix composite reinforced by in situ granular eutectics (abbreviated AGE composite) under impact abrasion has been investigated by means of transmission electron microscope (TEM), scanning electron microscope (SEM) and MDL wear tester. Results indicate that the granular eutectic effectively prevents the penetration of the abrasive into the worn surface and reduces the microcutting of the abrasive on the worn surface. The strain-induced martensite and dislocations in the worn subsurface layer make the hardness from the subsurface layer to the worn surface of the composite increase gradually, which can effectively resist the impacting and the drilling of the abrasive under different impact working condition. Therefore, AGE composite is a promising material to resist abrasive wear under low-medium energy impact wear.