侯晓英,王业勤,许荣昌,陈蓬

• 1:山东莱芜钢铁集团有限公司
• 2:东北大学轧制技术及连轧自动化国家重点实验室

摘要(Abstract)：

研究了冷轧压下量对钒微合金化TRIP钢组织性能的影响。结果表明,增加冷轧压下量,连续退火试样中铁素体体积分数减少,贝氏体体积分数增多;块状残留奥氏体晶粒尺寸有所减小,体积分数增多,达到16.2%,大多弥散地分布于晶界处;直径大多在3~10 nm之间的细小V(C,N)析出粒子弥散分布于基体组织,并与高密度位错交互作用而钉扎位错。冷轧压下量增加至83.6%,强度增加,尤其屈服强度增加了150 MPa;伸长率和强塑积均提高,强塑积达到24603 MPa·%。

关键词(KeyWords)： 冷轧压下量;钒微合金化TRIP钢;连续退火;V(C,N)析出相;残留奥氏体

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 侯晓英,王业勤,许荣昌,陈蓬

DOI: 10.13289/j.issn.1009-6264.2014.04.029

参考文献(References)：

• [1]Cai Z H,Ding H,Xue X,et al.Microstructural evolution and mechanical properties of hot-rolled 11%manganese TRIP steel[J].Materials Science and Engineering A,2013,560(10):388-395.
• [2]Ryu J H,Chun Y S,Lee C S,et al.Effect of deformation on hydrogen trapping and effusion in TRIP-assisted steel[J].Acta Materialia,2012,60(10):4085-4092.
• [3]Fazeli F,Militzer M.Modelling simultaneous formation of bainitic ferrite and carbide in TRIP steels[J].ISIJ International,2012,52(4):650-658.
• [4]Kobayashi J,Song S M,Sugimoto K.Microstructure and retained austenite characteristics of ultra high-strength TRIP-aided martensitic steels[J].ISIJ International,2012,52(6):1124-1129.
• [5]Fu B,Yang W Y,Lu M Y,et al.Microstructure and mechanical properties of C-Mn-Al-Si hot-rolled TRIP steels with and without Nb based on dynamic transformation[J].Materials Science and Engineering A,2012,536(28):265-268.
• [6]Hojo T,Sugimoto K I,Mukai Y,et al.Effects of aluminum on delayed fracture properties of ultra high strength low alloy TRIP-aided ateels[J].ISIJ International,2008,48(6):824-829.
• [7]Mahieu J,Maki J,De Cooman B C,et al.Phase transformation and mechanical properties of Si-free CMnAl transformation-induced plasticity-aided steel[J].Metallurgicai and Materials Transactions A,2002,33(8):2573-2580.
• [8]Maki J,Mahieu J,De Cooman B C,et al.Galvanisability of silicon-free CMnAI TRIP steels[J].Materials science&technology,2003,19(1):125-131.
• [9]De Cooman B C.Structure-properties relationship in TRIP steels containing carbide-free bainite[J].Current Opinion in Solid State and Materials Science,2004,8(3):285-303.
• [10]Sakuma Y,Matsumura O,Akisue O.Influence of C content and annealing temperature on microstructure and mechanical properties of 400℃transformed steel containing retained austenite[J].ISIJ International,1991,31(11):1348-1353.
• [11]Basuki A,Aernoudt E.Effect of deformation in the intercritical area on the grain refinement of retained austenite of 0.4C TRIP steel[J].Scipta Materialia,1999,40(9):1003-1008.
• [12]Kobayashi J,Yoshikawa N,Murakami T,et al.Effects of Cr and Mo on retained austenite characteristics and tensile properties of TRIP-aided annealed martensitic steel[J].Tetsu-to-Hagane,2012,98(11):610-617.
• [13]Kobayashi J,Ina D,Yoshikawa N,et al.Effects of the addition of Cr,Mo and Ni on the microstructure and retained austenite characteristics of 0.2%C-Si-Mn-Nb ultrahigh-strength TRIP-aided bainitic ferrite steels[J].ISIJ International,2012,52(10):1894-1901.
• [14]Nakagaito T,Matsuda H,Matsuoka S,et al.Influences of Si and Al on mechanical properties of low alloy TRIP-assisted multiphase steel sheets[J].Tetsu-to-Hagane,2011,97(5):279-287.
• [15]Zhang Z C,Li Y M,Manabe K,et al.Effect of heat treatment on microstructure and mechanical properties of TRIP seamless steel tube[J].Materials Transactions,2012,53(5):833-837.
• [16]Jimenez-Melero E,van Dijk N H,Zhao L,et al.The effect of aluminium and phosphorus on the stability of individual austenite grains in TRIP steels[J].Acta Materialia,2009,57:533-543.
• [17]Chen H C,Era H,Shimizu M.Effect of phosphorus on the formation of retained austenite and mechanical properties in Si-containing low-carbon steel sheet[J].Metallurgical and Materials Transactions A,1989,20,(3):437-445.
• [18]姚林龙.增大冷轧压下率提高钢板质量[J].冶金设备,2003,138(2):29-31.
• [19]Petrov R,Kestens L,Houbaert Y.Recrystallization of a cold rolled trip-assisted steel during reheating for intercritical annealling[J].ISIJ International,2001,41(8):883-890.

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