超高强度钢析出相调控与强化机理研究现状及发展趋势

张朝磊, 潘晓坤, 高军恒, 吴宏辉, 毛新平

Research Status and Development Trend of Precipitation Phase Regulation and Strengthening Mechanism in Ultra-High Strength Steel

ZHANG Chaolei, PAN Xiaokun, GAO Junheng, WU Honghui, MAO Xinping

表1 典型低合金超高强度钢的化学成分及力学性能^[17,20~22]

Table 1 Chemical compositions and mechanical properties of typical low-alloy ultra-high strength steels^[17,20-22]

Steel	Mass fraction / %							UTS MPa	YS MPa	Impact energy / J	Ref.
Steel	C	Mn	Si	Cr	Ni	Mo	V	UTS MPa	YS MPa	Impact energy / J	Ref.
AISI4340	0.38-0.43	0.60-0.80	0.20-0.35	0.70-0.90	1.65-2.00	0.20-0.30	-	1802	1528	25	[20]
300M	0.41-0.46	0.65-0.90	1.45-1.80	0.65-0.95	1.60-2.00	0.30-0.40	≥ 0.05	1890	1605	28	[17]
30CrMnSiNi2A	0.27-0.34	1.00-1.30	1.00-1.20	0.90-1.20	1.40-1.80	-	-	1720	1400	75	[21]
D6AC	0.44-0.49	0.60-0.90	0.15-0.35	0.90-1.20	0.40-0.70	0.90-1.10	0.05-0.15	2080	1840	13	[22]