SAF2507与321管板异种金属焊接接头组织形态和相组织分布  

Texture Shape and Phase Texture Distribution of the Welded Joints of Dissimilar Metals of SAF2507 and 321 Tube Sheets

作　　者：张淑娟[1] 胡传顺[1] 张娟娟 叶唐[1] 孙魁平[1] 郝晓红 

机构地区：[1]辽宁石油化工大学 [2]抚顺机械设备制造有限公司 [3]浙江超达阀门股份有限公司

出　　处：《化工机械》2006年第5期287-291,共5页Chemical Engineering & Machinery

摘　　要：为了解SAF2507和321异种金属管板焊接接头的相比例分布情况,按照ASTM标准对其焊缝截面各重要部位进行了铁素体含量检测。通过金相分析,发现两道焊缝组织形态区别很大,第1道焊缝基本为针片状或羽毛状奥氏体,第2道焊缝却成团块状奥氏体。In order to recognize the phase proportion distribution of the welded joints of SAF2507and 321 dissimilar metal tube sheets, a ferrite content inspection was conducted for every key position of the welding seam section based on ASTM standard. Through metallographic analyses , it was found that there was a big difference between the two welding seam texture shapes, the first welding seam basically was acerose or feathery austenite, and the second was crumby austenite.

关 键 词：超级双相不锈钢 奥氏体不锈钢 异种金属焊接 相组织分布 组织形态 

分 类 号：TQ050.41[化学工程]