摘要
研究了微量Ｍｇ在３５ＣｒＮｉ３ＭｏＶ钢中的作用与机理。结果表明，适量Ｍｇ使其室温和－４０℃冲击功ＡｋＶ提高６～２６Ｊ，并降低了韧脆转变温度、改善了断裂韧度和高温持久性能。钢中最佳Ｍｇ含量范围为０．００３０％～０．００６５％。
The effect and mechanism of Mg in 35CrNi3MoV steel have been studied. The results reveal that room temperature or -40℃ impact energy A kv of 35CrNi3MoV steel with applicable Mg addition has increased by 6～26J over that of 35CrNi3MoV steel without Mg. The ductile to brittle transition temperature of 35CrNi3MoV Mg steel is decreased. And the fracture toughness and stress rupture properties at elevated temperature are improved. The optimal Mg content range is 0.0030% to 0.0065%.
出处
《兵器材料科学与工程》
CAS
CSCD
北大核心
1997年第4期3-8,共6页
Ordnance Material Science and Engineering
关键词
铬镍钼钒钢
镁
力学性能
结构钢
Cr-Ni-Mo-V steel, Mg, mechanical properties, microstructure, inclusion Correspondent: Sun Wenshsn, P. O. Box 4, Baotou 014034
