摘要
AZ陶瓷(ZrO_(2)增韧Al_(2)O_(3))作为一种抗弹材料,为保证其防护性能,需要通过无损检测手段严把质量关。目前常用X射线法进行检测,但由于AZ陶瓷属于非标准材料,其曝光条件的确定缺乏相应依据。采用6063铝合金作为标准材料,在相同透照管电压下对AZ陶瓷阶梯试块及6063铝合金阶梯试块进行X射线数字成像,拟合得到厚度与图像灰度值间的关系曲线及拟合公式,由此计算得到在该管电压下AZ陶瓷与6063铝合金的等效系数。结果表明:透照管电压为75~95 kV时,AZ陶瓷与6063铝合金的等效系数为3.03~3.79。该试验结果对AZ陶瓷X射线数字成像检测技术条件的确定具有一定的指导意义。
AZ ceramic(ZrO_(2) toughens Al_(2)O_(3)) is a kind of ballistic material.The nondestructive testing should be strictly conducted to ensure its protective performance.At present,it is usually detected by X-ray method.However,AZ ceramic belongs to nonstandard material,and there is lack of evidence in the determination of exposure conditions.In the study,6063 aluminum alloy was selected as the standard material.The X-ray digital imaging of step samples of AZ ceramic and 6063 aluminum alloy were performed at same tube voltage.The relation curve and fitting formula between the thickness and image gray value were obtained by fitting.Then the equivalent coefficient between AZ ceramic and 6063 aluminum alloy at this tube voltage was calculated.The results showed that the equivalent coefficient between AZ ceramic and 6063 aluminum alloy was 3.03-3.79 when the tube voltage was in range of 75-95 kV.The study had certain guiding significance for the determination of X-ray digital radiographic testing conditions for AZ ceramics.
作者
朱贵锋
臧莉莉
李帅
焦钟斌
王琰
孟全胜
ZHU Guifeng;ZANG Lili;LI Shuai;JIAO Zhongbin;WANG Yan;MENG Quansheng(No.52 Institute of China North Industries Group Yantai Branch Co.,Ltd.,Yantai 264003,China;Yantai Special Education School,Yantai 264003,China)
出处
《物理测试》
CAS
2022年第4期61-65,共5页
Physics Examination and Testing
关键词
AZ陶瓷
铝合金
数字射线
等效系数
AZ ceramic
aluminum alloy
digital radiography
equivalent coefficient
