摘要
研究了Ti/N对一种工程机械用高强度低碳贝氏体钢组织和力学性能的影响。研究结果表明,Ti/N值可明显影响钢中酸溶硼的收得率和力学性能。Ti/N在3.3以下时,酸溶硼的收得率小于50%;Ti/N大于3.6时酸溶硼收得率在75%以上;Ti/N超过4时,酸溶硼的收得率趋于90%,并不再有明显提高。随Ti/N的增加钢板的性能合格率明显提高,增加Ti含量,提高Ti/N是提高硼收得率进而提高性能合格率的比较经济有效的方法。
The effect of Ti/N ratio on microstructure and mechanical properties of high strength low-carbon bainitic steel plate is investigated.The result shows Ti/N ratio have obvious effect on the yield of acid-soluble boron in steel and mechanical properties of that kind of steel.Boron yield of no more than 50% could be obtained when the Ti/N ratio is below 3.3,more than 75% obtained when the ratio over 3.6,and nearly 90% obtained when the ratio reaches 4.The mechanical properties of the steel are obviously improved with the increase of the Ti/N ratio.Adding enough Ti to boost Ti/N ratio is an effective and economic way to increase effective boron yield and further improve the mechanical properties.
出处
《钢铁钒钛》
CAS
北大核心
2011年第4期22-25,共4页
Iron Steel Vanadium Titanium
关键词
高强度钢
组织
力学性能
Ti/N
有效硼
high strength steel
microstructure
mechanical property
effective boron
Ti/N
