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研究 2 0 % V/VSi Cw/60 61 Al复合材料的 X射线衰减系数及缺陷检测灵敏度 (相对值 )。当管电压较低时 ,复合材料的 X射线衰减系数较大 ,且缺陷检测灵敏度较差 ;当管电压 >1 0 0 k V时 ,两种材料的 X射线衰减系数及缺陷检测灵敏度差别很小。
X-ray attenuation coefficient and defect detection sensitivity (relative value) of 20% V / VSi Cw / 60 61 Al composites were investigated. When the tube voltage is low, the X-ray attenuation coefficient of the composites is larger and the sensitivity of defect detection is poor. When the tube voltage is> 100 kV, the X-ray attenuation coefficient and defect detection sensitivity of the two materials are very small .