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This study examined the phase changes, nitride precipitation, heat treatment, hardness variations and tempering effect of AISI 430 ferritic stainless steel after high-temperature gas nitriding (HTGN) at 1050°C and 1100°C in a nitrogen gas atmosphere. The strong affinity between nitrogen and Cr enabled the permeation of nitrogen into AISI 430 ferritic stainless steel. The surface layer of the steel...
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