超高强高韧化钢的研究进展和展望

罗海文,沈国慧

Progress and Perspective of Ultra-High Strength Steels Having High Toughness

Haiwen LUO,Guohui SHEN

表4 典型马氏体时效超高强韧钢的力学性能^{[18,21,22,23,24,25]}

Table 4 Mechanical properties of typical ultra-high strength maraging steels^{[18,21,22,23,24,25]}

Steel	YS / MPa	UTS / MPa	EL / %	Hardness / HB	A_k (20 ℃) / J	Ref.
18Ni3Al4Mo	1947	2197	8.2	-	-	[18]
18Ni(250)	1819	1854	12.19	481	35	[21]
T250	1500	1860	11.5	481	58	[22]
W250	1780	1800	9	-	25	[23]
15Ni6Mo4Cu1Ti	1785	1893	9.5	525	30	[24]
14Ni3Cr3Mo1.5Ti	1750	1820	13.5	496	-	[25]