%0 Journal Article
%T Effect of V and V-N Microalloying on Deformation-Induced Ferrite Transformation in Low Carbon Steels
%A Kai WANG
%A Lijun WANG
%A Wenfang CUI
%A Chunming LIU
%A <br>Kai
%A WANG
%A Lijun
%A WANG
%A Wenfang
%A CUI
%A Chunming
%A LIU
%J 材料科学技术学报
%D 2006
%I 
%X Deformation-induced ferrite transformation (DIFT) has been proved to be an effective approach to refine ferrite grains. This paper shows that the ferrite grains can further be refined through combination of DIFT and V or VN microalloying. Vanadium dissolved in γ matrix restrains DIFT. During deformation, vanadium carbonitrides rapidly precipitate due to strain-induced precipitation, which causes decrease in vanadium dissolved in matrix and indirectly accelerates DIFT. Under heavy deformation, deformation induced ferrite (DIF) grains in V microalloyed steel were finer than those in V free steel. The more V added to steel, the finer DIF grains obtained. Moreover, the addition of N to V microalloyed steels can remarkably accelerate precipitation of V,and then promote DIFT. However, DIF grains in V-N microalloyed steel easily coarsen.
%K Deformation induced ferrite transformation
%K Strain induced precipitation
%K V microalloyed steel
%K V-N microalloyed steel
%K Thermomechanical simulation<br>低碳钢
%K 铁素体转变
%K 钒微合金化钢
%K 钒氮微合金化钢
%K 热机械模拟
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=324DC3CAB22330DB19158AE0A9B7BFA5&aid=9ACB05018630AE26F3CC6364960D6CCC&yid=37904DC365DD7266&vid=BC12EA701C895178&iid=0B39A22176CE99FB&sid=BA79719BCA7341D5&eid=D5C9DC4EF2F78008&journal_id=1005-0302&journal_name=材料科学技术学报&referenced_num=0&reference_num=14