改良型T23钢焊接性试验研究与评价  

Research and Evaluation of Weldability Test for Modified T23

作　　者：曲生志[1] 卢征然[1] 李忠杰[1] 李杰[1] 

机构地区：[1]上海锅炉厂有限公司,上海200245

出　　处：《锅炉技术》2013年第2期45-48,共4页Boiler Technology

基　　金：上海市科学技术委员会的资助(10dz1201200)

摘　　要：通过斜Y型拘束焊接试验方法对ASME CODE CASE 2199-4改良型T23钢的冷裂纹及再热裂纹敏感性进行了试验研究。试验结果表明:改良型T23钢比未改良T23焊接性好,冷裂纹敏感性低;与国产未经改良的T23相比,再热裂纹敏感性有较大改善,但仍有较大的再热裂纹敏感性,出现再热裂纹的敏感温度范围为660℃～760℃。Through researching of cold crack sensibility and reheat crack sensibility for modified T23which in ASME CODE CASE 2199-4by method of Y-groove cracking test,the text result show that modified T23is better than non-modified T23in weldability,and low cold crack sensibility;Reheat crack sensibility of modified T23is still severe,but better than domestic non-modified T23.Sensitive temperature range of reheat crack is from 660 ℃ to 760℃.

关 键 词：冷裂纹 再热裂纹 敏感温度范围 

分 类 号：TG452.11[金属学及工艺—焊接]