摘要
研究了ＮｂＶ－Ｖ，Ｎｂ－Ｔｉ，Ｎｂ－Ｖ－Ｔｉ三种成分系列微合金钢的抗奥氏体晶粒长大能力，以及含氮量对Ｎｂ－Ｖ－Ｔｉ微合金钢抗奥氏体晶粒长大能力的影响。试验结果表明，微合金钢中加入微量钛可大大提高钢抗奥氏体晶粒长大能力，Ｎｂ－Ｖ－Ｔｉ微合金钢中含氮量增多抗奥氏体晶粒长大能力增强，但含氮量过高会影响焊接热影响区韧性。
In this paper the ability of Nb-V, Nb-Ti and Nb-V-Ti microalloyed steels to resist growth of auxtenite grains and the influence of N on the abillty of Nb-V-Ti microalloyed steel to resist growth of auxtenite grains are studied. Test results indicate that microamount Ti addition can greatly enhance the ability of Nb-V-Ti microalloyed steel to resist growth of austenite grains,with the increase of N content the ability of Nb-v-Ti steel to resist growth of austenite grains in-creases,but too much content of N decreases toughness of welding heat affected zone.
出处
《钢铁钒钛》
CAS
北大核心
1995年第1期22-25,共4页
Iron Steel Vanadium Titanium
关键词
微合金钢
奥氏体
晶粒长大
焊接
韧性
icrocalloyed steel,austenite grain,growth,welding,toughness
