连铸板坯网状裂纹成因及影响因素的研究

钢铁钒钛, 2008, 29(1): 17-22.

1.东北大学材料与冶金学院,辽宁,沈阳,110004;攀枝花钢铁研究院,四川,攀枝花,617000

2.北京科技大学冶金与生态工程学院,北京,100083

3.北京科技大学冶金与生态工程学院,北京,100083

4.北京科技大学冶金与生态工程学院,北京,100083

Causes and Effects of Network Cracks in Continuously Cast Slab

采用金相显微镜、SEM、TEM和EDS等方法,分析了因连铸板坯表面冷却不均匀引起γ→α反复相变导致碳氮化物在晶界析出,并在外力(热应力、弯曲矫直应力等)作用下产生沿晶界开裂的网状裂纹的形成机理,以及钢中[C]、Mn/S、[Al]、[V]、连铸冷却强度等对连铸板坯网状裂纹的形成和扩展的影响.

[1]	吴薇.化学成分对连铸板坯横裂纹形成的影响[J].上海金属,2004(01):50-54.
[2]	N. Pradhan;N. Banerjee;B.B. Reddy .Control of transverse cracking in special quality slabs[J].Ironmaking & Steelmaking: Products and applications,2001(4):305-311.
[3]	Yasumoto K.Effects of Sulphur on Hot Ductility of Low Carbon Steel[J].Materials Science and Technology,1985(01):111-116.
[4]	Mintz .The Influence of Composition on the Hot Ductility of Steels and to the Problem of Transverse Cracking[J].ISIJ International,1999,39(09):833-885.
[5]	Wilson F G;Gladman T G .Aluminum Nitride in Steel[J].International Materials Reviews,1988,33(05):221-286.
[6]	B.Mintz .Influence of nitrogen on hot ductility of steels and its relationship to problem of transverse cracking[J].Ironmaking & Steelmaking: Products and applications,2000(5):343-347.
[7]	马福昌,刘永龙,宋瑞甫,郑京辉.Nb、V、Ti微合金元素对连铸坯表面质量的影响[J].宽厚板,2003(04):14-18.
[8]	Turkdogan E T.Causes and Effects of Nitride and Carbonitride Precipitation in HSLA Steels in Relation to Continuous Casting[A].,1987:399-409.

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