The effect of borocoppering duration on the composition, microstructure and microhardness of the surface of carbon and alloy steels

OBRABOTKAMETALLOV MATERIAL SCIENCE Vol. 25 No. 1 2023 Fig. 11. Microtopography of the surface of Steel 45 (0.45% C) specimens: a – initial, without treatment; b – after borocoppering for 3 hours; c – after borocoppering for 4 hours; d – after borocoppering for 5 hours а b c d

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