奥氏体不锈钢焊缝超声检测对比试块的改进  

Improvement of Austenitic Stainless Steel Weld Ultrasonic Testing Compared to Test Blocks

作　　者：郭黎群 洪君华 魏高洋 GUO Li-qun;HONG Jun-hua;WEI Gao-yang(Taizhou Special Equipment Inspection and Testing Institute,Taizhou 318000,China)

机构地区：[1]台州市特种设备检验检测研究院,浙江台州318000

出　　处：《化工管理》2023年第28期127-130,共4页Chemical Engineering Management

摘　　要：通过对常规标准引用的奥氏体不锈钢对比试块的了解,发现不能完全展现奥氏体金相组织对超声波声束的影响。提出了一种改进的对比试块,在形状、焊缝结构等方面进行了不同的改造,另外也增加了反映不同缺陷特征的人工规则反射体,使得试块更能与产品焊缝的实际情况相一致。Through the understanding of the austenitic stainless steel comparison test block cited by the conventional standard,it is found that the influence of austenitic metallographic structure on the ultrasonic sound beam cannot be fully demonstrated.An improved comparison test block is proposed,which has been modif ied differently in terms of shape and weld structure,and artif icial regular reflectors reflecting different defect characteristics are also added,so that the test block can be more consistent with the actual situation of the product weld.

关 键 词：奥氏体不锈钢 对比试块 人工规则反射体 金相组织 

分 类 号：TG441.7[金属学及工艺—焊接]