摘要
进行了几种金属组合的对称碰撞爆炸焊接试验。获得了这些金属组合中的飞线—绝热剪切线。分析了这种飞线产生的工艺、原因、性质和影响。指出了飞线的产生主要与金属材料的ａｋ值大小和载荷的强度有关：ａｋ值小的容易出现飞线，反之不容易出现飞线，但在更强和特强的爆炸载荷下，ａｋ值大的金属材料中也会出现飞线。论证了这种飞线实质上是在爆炸载荷下金属中发生的一种塑性变形线和裂纹源。
Some tests with many sorts of metals combination under symmetrical impact explosion welding were studied, and a sort of flying line-adiabatic shear line in those metals combination was obtained. The techanology, cause, properties and effects of the flying line were analyzed, and it was pointed out that the flying line phenomenon was correlated with the value of a k of metal material and the intensity of load, that is when the value of a k is little, the flying line is easy to appear; otherwise the flying line is not easy to appear, but with stronger and strongest explosion load, the flying line will appear in metal material with larger value of a k. The flying line is a sort of plastic deformation line and crack source in metal with explosion load and this flying line is also a sort of new and special type of plastic deformation in metal with this sort of explosion load.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
1998年第A01期239-243,共5页
The Chinese Journal of Nonferrous Metals
关键词
对称碰撞
爆炸焊
复合材料
飞线
塑性变形
symmetrical impact explosion welding composite material flying line plastic deformation mechanism
