5Ni钢液罐焊缝超声检测技术  

Ultrasonic Testing Technique Research of 5Ni Steel Cargo Tank's Welding

作　　者：丁兵[1] 易一平[1] 胡文杰[2] 李军[1] 季浩栋 盛海军[1] 

机构地区：[1]上海船舶工艺研究所,上海200032 [2]挪威船级社(中国)有限公司,上海200336

出　　处：《无损探伤》2014年第6期1-7,36,共8页Nondestructive Testing Technology

摘　　要：5Ni钢液罐是当前液化天然气存储和运输的主要设备,在以能源开发和利用作为经济竞争手段的市场中需求量很大。制造该类液罐采用X12Ni5钢板,高镍含量的TN-5T焊材,形成的焊缝金属显微组织不同于常规铁素体钢,不能采用普通焊缝的超声检测方法。通过大量实验研究,本文总结出了5Ni钢焊缝超声检测的有效工艺方法。5Ni steel cargo tank is the main equipment of the liquefied natural gas storage and transportation currently.It is greatly demanded in the market which uses energy development and utilization as an economic competition mean.This kind of liquid tank adopts X12Ni5 steel and high nickel content TN-5T welding material.The weld metal microstructure is different from conventional ferritic steel and can not use ordinary weld ultrasonic testing method.This paper sums up the effective method of 5Ni steel weld ultrasonic testing based on experimental researches.

关 键 词：5Ni钢 液罐 焊缝 超声检测 

分 类 号：TG115.28[金属学及工艺—物理冶金]