This study was to analyse the relationship between process parameters of the sintered composite and plasma nitriding properties with pulsed DC plasma. Fe-40at% composites of full density were fabricated by hot pressing at 1100~. Sintered Fe-40at%Al and Fe-40at% alloys were nitrided under pulsed DC plasma. Excellent surface hardness in the FeAl alloys could be obtained by plasma nitriding. ( :100gf, diffusion layer : 1100~, matrix : 330~) The wear resistance of composites were improved about by 4~6times than FeAl and nitrided were improved about 2 times than matrix.

• 박지환
• 김수방
• 박윤우