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钛/钢爆炸复合板界面连接机理与力学行为
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东北大学 材料与冶金学院

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TG335.81

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国家自然科学基金项目(面上项目,重点项目,重大项目)


Interfacial bonding mechanism and mechanical performance of Ti/Steel bimetallic clad sheet produced by explosive welding and annealing
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    摘要:

    本文表征了钛/钢爆炸焊接复合板的界面组织和剪切性能,研究爆炸复合过程的界面结合机理。结果表明,在金属板之间形成了波状界面组织,剧烈塑性变形造成钢基体发生明显的塑性流动,并在界面形成连续的漩涡形貌。TEM和XRD检测证实界面存在纳米尺度的过渡层,并包含有固溶体组织和少量金属间化合物。波状界面组织改善了复合板沿爆炸方向的界面剪切强度,剪切断口显示漩涡组织发生韧性断裂形貌。

    Abstract:

    The microstructural characterization and interfacial shear tests of Ti/Steel bimetallic clad sheets were taken to study the interfacial bonding mechanism during explosive welding process. The wavy interface with several vortexes forms between the dissimilar metal matrixes due to the interface deformation. A significant metal flow of steel matrix caused by the severe plastic deformation induces the continuous vortexes in the interface. The TEM and XRD analysis clarify that the nanoscale interfacial interlayer contains solid solutions and a small amount of intermetallic compounds. The shear strength of the interface along the explosive welding direction is enhanced by the wavy interface. The fracture of the bonding interface presents the ductile features on the vortex and while brittle features on the smooth interface.

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祖国胤.钛/钢爆炸复合板界面连接机理与力学行为[J].稀有金属材料与工程,2017,46(4):906~911.[Zu Guoyin. Interfacial bonding mechanism and mechanical performance of Ti/Steel bimetallic clad sheet produced by explosive welding and annealing[J]. Rare Metal Materials and Engineering,2017,46(4):906~911.]
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历史
  • 收稿日期:2015-01-22
  • 最后修改日期:2015-03-14
  • 录用日期:2015-05-13
  • 在线发布日期: 2017-08-04
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