Influence of grain size on the dynamic fracture (Spalling) of copper

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作者
Buchar, Jaroslav [1 ]
机构
[1] Vysoka skola zemedelska a lesnicka, Brno, Czech Republic
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Copper And Alloys--Grain Size And Shape - Microstructure - Rolls--Spalling;
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摘要
The paper deals with dynamic fracture by a tensile pulse in copper. Spalling was produced by explosive experiments. The influence of grain size on this kind of fracture was studied. It was found that samples with different grain sizes exhibited different nucleation sites. The spall strength was found to be dependent on the initial microstructure. The occurence of fracture mode transition from intergranular to transgranular fracture was approved. The quantitative evaluation of this transition was performed.
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页码:548 / 559
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