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,500 北京科技大学学报 第30卷 Mn and Mo.1SIJ1t,1996,36(12):1486 of 800 MPa grade HSLA steel during the continuous cooling. [4]Manohar P A.Chandra T.Continuous cooling transformation be- Steel Rolling.2003.20(1):4 haviour of high strength microalloyed steels for linepipe applica- (漆世泽，陆匠心，苏连锋，等.8O0MPa级超级钢变形后连续 tions.1SJ1t,1998,38(7):766 冷却过程的组织变化.轧钢，2003,20(1)：4) [5]Ouchi C,Sampei T.Kozasu I.The effect of hot rolling condition [10]Yuan X Q,Liu Z Y,Jiao S H.et al.Dilatometric study on the and chemical composition on the onset temperature of /a trans- start temperature for Y to a phase transformation in C-Mn steels formation after hot rolling.Trans ISI,1982.22:214 Micro-alloyed with Nb.Iron Steel.2005.40(Suppl):269 [6]Liu X D,Jan K S,Rarnar G.Measurement of austenite to ferrite [11]Lagneborg R.Siwecki T,Zajac S,et al.The role of vanadium transformation temperature after multi pass deformation of steels. in microalloyed steels.Scand J Metall,1999,28:186 Mater Sci Eng A.1995.194:L15 [12]Medina S F.Mancilla J E.Hernandez C A.Static recrystalliza [7]Petrov R,KestensY,Houbaert Y.Characterization of the mi- tion of hot deformed austenite and induced precipitation kinetics crostructure and transformation behavior of strained and non- in vanadium microalloyed steels.ISIJ Int,1994.34(8):689 strained austenite in Nb V-alloyed C Mn steel.Mater Charact, [13]Jung YC.Ueno H,Ohtsubo H.et al.Effects of small amounts 2004,53:51 of B.Nb and Ti additions on nucleation and growth processes of [8]Zhao JC.Notis M R.Continuous cooling transformation kinetics intermediate transformation products in low carbon 3%Mn versus isothermal transformation kinetics of steels:a phenomeno- Steels.1SIJ1nt,1995,35(8):1001 logical rationalization of experimental observations.Mater Sci [14]Mekkawy M F,El-Fawakhry K A.Mishreky M L.et al.Ef- EgA,1995,15:135 fect of finish-rolling temperature on microstructure and strength [QiSZ.Lu JX.Su L F,et al.Transformation of microstructure of V-and Ti-microalloyed steels.Scand J Metall,1990,19:246 (上接第494页) 纹形成的细观力学分析.兰州理工大学学报，2004,30(5)：1) 在炉停留时间不足3h时，中厚板超声波探伤合格 [2]Dai P Q,He Z R.Mao Z Y.In situ TEM observation of crack 率显著降低；延长铸坯在炉停留时间能够有效提高 initiation and propagation in pearlite.Trans Mater Heat Treat. 2003,24(2):41 中厚板的超声波探伤合格率；中厚板中引起超声波 (戴品强，何则荣，毛志远·珠光体裂纹萌生与扩展的TEM原 探伤不合的缺陷是珠光体带中的微裂纹；减弱连铸 位观察.材料热处理学报，2003,24(2)：41) 板坯的中心线偏析能够有效提高中厚板的探伤 [3]Yu Y N.Metal Principle.Beijing:Metallurgical Industry Press- 质量， 2000,189 (余永宁.金属学原理.北京：治金工业出版社，2000：189) [4]YamashitaT.Torizuka S,Nagai K.Effect of manganese segre 参考文献 gation on finegrained ferrite structure in low carbon steel slabs. [1]Ren X C.Wang GZ.Wand Y L.et al.Mesoscopic mechanical 1SJ1t,2003,43(11):1833 analysis of cleavage micro crack forming in ferrite pearlite mi- [5]Majka T F,Matlock D K.Krauss G.Development of microstrue- crostructure.JLanzhou Univ Technol,2004.30(5):1 tural banding in low alloy steel with simulated Mn segregation. (任学冲，王国珍，王玉良，等，铁素体一珠光体组织中解理微裂 Metall Mater Trans A.2002.33A(6):1627Mn and Mo．ISIJ Int199636（12）：1486 ［4］ Manohar P AChandra T．Continuous cooling transformation behaviour of high strength microalloyed steels for linepipe applications．ISIJ Int199838（7）：766 ［5］ Ouchi CSampei TKozasu I．The effect of hot rolling condition and chemical composition on the onset temperature of γ／αtransformation after hot rolling．T rans ISIJ198222：214 ［6］ Liu X DJan K SRarnar G．Measurement of austenite-to-ferrite transformation temperature after mult-i pass deformation of steels． Mater Sci Eng A1995194：L15 ［7］ Petrov RKestensYHoubaert Y．Characterization of the microstructure and transformation behavior of strained and nonstrained austenite in Nb—V—alloyed C—Mn steel．Mater Charact 200453：51 ［8］ Zhao J CNotis M R．Continuous cooling transformation kinetics versus isothermal transformation kinetics of steels：a phenomenological rationalization of experimental observations． Mater Sci Eng A199515：135 ［9］ Qi S ZLu J XSu L Fet al．Transformation of microstructure of 800 MPa grade HSLA steel during the continuous cooling． Steel Rolling200320（1）：4 （漆世泽陆匠心苏连锋等．800MPa 级超级钢变形后连续 冷却过程的组织变化．轧钢200320（1）：4） ［10］ Yuan X QLiu Z YJiao S Het al．Dilatometric study on the start temperature for γtoαphase transformation in C—Mn steels Micro—alloyed with Nb．Iron Steel200540（Suppl）：269 ［11］ Lagneborg RSiwecki TZajac Set al．The role of vanadium in microalloyed steels．Scand J Metall199928：186 ［12］ Medina S FMancilla J EHernandez C A．Static recrystallization of hot deformed austenite and induced precipitation kinetics in vanadium microalloyed steels．ISIJ Int199434（8）：689 ［13］ Jung Y CUeno H Ohtsubo Het al．Effects of small amounts of BNb and Ti additions on nucleation and growth processes of intermediate transformation products in low carbon 3％ Mn Steels．ISIJ Int199535（8）：1001 ［14］ Mekkawy M FE-l Fawakhry K AMishreky M Let al．Effect of finish-rolling temperature on microstructure and strength of V-and T-i microalloyed steels．Scand J Metall199019：246 （上接第494页） 在炉停留时间不足3h 时中厚板超声波探伤合格 率显著降低；延长铸坯在炉停留时间能够有效提高 中厚板的超声波探伤合格率；中厚板中引起超声波 探伤不合的缺陷是珠光体带中的微裂纹；减弱连铸 板坯的中心线偏析能够有效提高中厚板的探伤 质量． 参 考 文 献 ［1］ Ren X CWang G ZWand Y Let al．Mesoscopic mechanical analysis of cleavage micro-crack forming in ferrite-pearlite microstructure．J L anz hou Univ Technol200430（5）：1 （任学冲王国珍王玉良等．铁素体—珠光体组织中解理微裂 纹形成的细观力学分析．兰州理工大学学报200430（5）：1） ［2］ Dai P QHe Z RMao Z Y．In situ TEM observation of crack initiation and propagation in pearlite．T rans Mater Heat T reat 200324（2）：41 （戴品强何则荣毛志远．珠光体裂纹萌生与扩展的 TEM 原 位观察．材料热处理学报200324（2）：41） ［3］ Yu Y N．Metal Principle．Beijing：Metallurgical Industry Press 2000：189 （余永宁．金属学原理．北京：冶金工业出版社2000：189） ［4］ Yamashita TTorizuka SNagai K．Effect of manganese segregation on fine-grained ferrite structure in low-carbon steel slabs． ISIJ Int200343（11）：1833 ［5］ Majka T FMatlock D KKrauss G．Development of microstructural banding in low-alloy steel with simulated Mn segregation． Metall Mater T rans A200233A（6）：1627 ·500· 北 京 科 技 大 学 学 报 第30卷