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首页> 外文期刊>Procedia Manufacturing >Visualization of strain distribution in tensile test of ferrite + martensite multilayered steel sheet by digital image correlation method
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Visualization of strain distribution in tensile test of ferrite + martensite multilayered steel sheet by digital image correlation method

机译：数字图像相关方法可视化铁氧体+马氏体多层钢板拉伸试验中的应变分布

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摘要

A strain distribution introduced by tensile deformation in a ferrite + martensite multilayered steel was visualized using the digital image correlation method and its local deformation and fracture behavior were characterized. The strain was continuously distributed along 45 degrees from the tensile direction regardless of the layers and was predominately to concentrate in martensite layers. Voids or cracks were generated from highly strained martensite layers and their coalescence led to the fracture. Therefore, the deformability and ductility of hard layer play an important role in the deformation and fracture in a multilayered steel.
机译：使用数字图像相关方法可视化通过铁氧体+马氏体多层钢中的拉伸变形引入的应变分布，其特征在于其局部变形和裂缝行为。无论层如何，菌株沿拉伸方向连续地分布45度，并且主要是浓缩在马氏体层中。从高度应变的马氏体层产生空隙或裂缝，它们的聚结导致裂缝。因此，硬层的可变形性和延展性在多层钢中的变形和骨折中起重要作用。

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