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The method of low temperature ion sulfuration was utilized to treat three kinds of steel, high-speed steel (M2), die steel (L6) and plain carbon steel (1045). The iron sulfide (FeS), with 10 μm thickness, were produced on the surfaces of the three steels. The tribological properties of the sulfide layers were investigated on a ball-on-disc friction and wear test rig of QP-100 model under oil lubrication...
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