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通过金相显微镜、扫描电镜对船板钢拉伸试样断口的金相组织、低倍组织、形貌进行分析,确定船板钢拉伸试样断口缺陷是由铸坯中的夹杂物、中心偏析和轧制工艺中形成的带状组织引起的.结合生产实际,提出了连铸坯二冷区凝固末端强制冷却措施,使得柱状晶生长速度变慢,等轴晶增多,减少了钢水静压力,减轻了中心偏析,船板拉伸断口分层缺陷得到有效控制.

参考文献

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[2] E. KORMANIKOVA;I. MAMUZIC.BUCKLING ANALYSIS OF A LAMINATE PLATE[J].Metalurgija,20082(2):129-132.
[3] Eddy Vanwijgenhoven;Martine Wevers;Omer van der Biest.Influence of the laminate lay-up on the fatigue behaviour of SiC-fibre/BMAS-matrix composites[J].Composites, Part A. Applied science and manufacturing,19995(5):623-635.
[4] Shunping Li;Jian Cao.A Hybrid Approach for Quantifying the Winding Process and Material Effects on Sheet Coil Deformation[J].Journal of engineering materials and technology,20043(3):303-313.
[5] Tiezheng Li;F. Grignon;D.J. Benson.Modeling the elastic properties and damage evolution in Ti-Al_3Ti metal-intermetallic laminate (MIL) composites[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,20041/2(1/2):10-26.
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