Indentation toughness of Mo₅Si₃-based alloys

来源期刊：中国有色金属学报(英文版)2002年第4期

论文作者：张继 冯荻

文章页码：676 - 680

Key words：indentation toughness; Mo₅Si₃; alloying

Abstract: The indentation toughness of Mo₅Si₃-based phases was studied with regard to different alloying elements, amount of alloying addition as well as the presence of secondary phases. Cr, Ti, Nb, Ni and Co were added as alloying elements. The results show that the indentation fracture toughness of Mo₅Si₃ increases with the alloying additions, from 2.4MPa·m^1/2 for monolithic to just over 3MPa·m^1/2 for highly alloyed Mo₅Si₃. Small volume fractions of brittle secondary phases may have a positive impact on the indentation toughness; while larger fractions seems to lower the toughness.