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

被引：0
|
作者：
Buchar, Jaroslav [1 ]
机构：
[1] Vysoka skola zemedelska a lesnicka, Brno, Czech Republic
来源：
Acta Technica CSAV (Ceskoslovensk Akademie Ved) | 1991年 / 36卷 / 05期
关键词：
Copper And Alloys--Grain Size And Shape - Microstructure - Rolls--Spalling;
D O I：
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中图分类号：
学科分类号：
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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