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5 典型沉淀硬化超高强度不锈钢的力学性能^{[27,28,57,58]}

Table 5 Mechanical properties of typical precipitation hardening ultra-high strength stainless steels^{[27,28,57,58]}

Steel	YS / MPa	UTS / MPa	EL / %	Hardness / HB	A_k (20 ℃) / J	K_IC / (MPa·m^1/2)	Ref.
PH 13-8Mo	1500	1620	10	455	15	80	[27]
Custom465	1703	1779	14	-	-	71	[27]
Ferrium S53	1551	1986	15	543	18	70	[28]
PH 17-4	1161	1199	10.05	311	62.3	-	[57]
PH 15-5	1150	1240	16	469	-	90	[58]