微合金钢焊接热影响区奥氏体晶粒长大的研究  

STUDY ON GROWTH OF AUSTENITE GRAINS IN MICROALLOYED STEELS WELDING HAZ

作　　者：高甲生[1] 洪永昌[1] 吴惠英[1] 尹桂全[1] 黄锡镐[1] 史弼[1] 

机构地区：[1]华东冶金学院,上海宝山钢铁总厂

出　　处：《钢铁钒钛》1996年第1期8-11,共4页Iron Steel Vanadium Titanium

摘　　要：采用焊接热模拟的方法，研究了不同峰温和停留时间条件下，Ｔｉ－Ｎ和Ｔｉ－Ｎｂ－Ｎ两种成分系列的微合金钢焊接热影响区奥氏体晶粒长大的特点，试验结果表明，微合金钢抗奥氏体晶粒长大的能力，不仅和Ｔｉ含量有关，也和Ｎｂ含量及Ｎ含量有关。The Characteristics of austenite grains growth in Ti-N and Ti-Nb-N microalloyed steels welding HAZ have been studied by using of welding thermal simulation under different T_P and corresponding holding time condition. Test results indicate that the ability of microalloyed steels to resist growth of austenite grains is related not only to the Ti content but also to the Nb and N content.

关 键 词：微合金钢 奥氏体 晶粒长大 焊接 热影响区 

分 类 号：TG142.33[一般工业技术—材料科学与工程] TG402[金属学及工艺—金属材料]