22SiMn2TiB装甲钢异种焊接接头超声波探伤探头设计  

Design of the Ultrasonic Detecting Probe Used to Inspect the Dissimilar Welding Joint of the 22SiMn2TiB Armor Plate

作　　者：刘贵民[1] 张昭光[1] 谭伟[1] 

机构地区：[1]装甲兵工程学院装备再制造工程系,北京100072

出　　处：《装甲兵工程学院学报》2006年第5期77-81,共5页Journal of Academy of Armored Force Engineering

摘　　要：用常规探头对22SiMn2TiB装甲钢与TWE312异种钢焊接接头进行缺陷检测，杂波和伪缺陷波导致灵敏度、信噪比不高。用扫描电镜观察到这种异种钢焊接接头主要为奥氏体＋铁素体组织，其中奥氏体是主体组织。根据焊缝的组织特点，设计出了2．5PI3×13K1．5型专用探头。在预制缺陷的焊接接头上进行了验证试验，结果表明2．5P13×13K1．5探头对接头内部的缺陷具有较高的检出率。When the routine ultrasonic probes are used to detect the dissimilar welding joint of the 22SiMn2TiB armor plate, there are many noisy and false waves and which lead to the lowness of the signal-to-noise ratio attainability and sensitivity. It has been found by scanning electronic microscopic （SEM） that the dissimilar welding joint is composed of austenite and ferrite, in which austenite is the main part. According to the specialty of the microstructure, 2.5P13×13K1.5 has been obtained. The validation experiments of the probe 2.5P13×13K1.5 have been carried out on the pre-prepared defects joints, and the results indicate that the 2.5P13 13K1.5 probe can effectivelv inspect the inner-defects of the Joints.

关 键 词：22SiMn2TiB装甲钢 异种焊接接头 超声检测 探头 设计 

分 类 号：TG115.28[金属学及工艺—物理冶金]