[1]于 磊,李志宏,莫诚生,等.X90M钢板对接接头性能测试与分析[J].焊管,2015,38(8):11-15.[doi:1001-3938(2015)08-0011-05]
 YU Lei,LI Zhihong,MO Chengsheng,et al.The Performance Test and Analysis of the Butt Joint About X90M Steel Plate[J].,2015,38(8):11-15.[doi:1001-3938(2015)08-0011-05]
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X90M钢板对接接头性能测试与分析
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
38
期数:
2015年第8期
页码:
11-15
栏目:
试验与研究
出版日期:
2015-08-28

文章信息/Info

Title:
The Performance Test and Analysis of the Butt Joint
 About X90M Steel Plate
文章编号:
1001-3938(2015)08-0011-05
作者:
于 磊1李志宏1莫诚生1王登树2檀才保1
1. 安徽省特种设备检测院, 合肥 230051;
2. 合肥紫金钢管有限公司, 合肥 230051
Author(s):
YU Lei1 LI Zhihong1 MO Chengsheng1 WANG Dengshu2 TAN Caibao1
1. Anhui Special Equipment Inspection Institute, Hefei 230051, China;
2. Hefei Zijin Steel Pipe Co., Ltd., Hefei 230051, China
关键词:
焊接X90M焊缝热影响区拉伸性能冲击韧性断口形貌
Keywords:
welding X90M weld heat affected zone tensile property impact property fracture appearance
分类号:
TG407
DOI:
1001-3938(2015)08-0011-05
文献标志码:
A
摘要:
对管线钢用X90M钢板自动埋弧焊对接接头进行了力学性能测试、微观组织观察、SEM扫描等试验。分析得出焊缝组织主要由针状铁素体和粒状贝氏体组成,热影响区除粒状贝氏体外,还有少量块状铁素体。硬度测试结果表明,热影响区并不存在明显软化现象,焊缝和热影响区的冲击吸收能量均对温度较为敏感,但焊缝中纵横交错分布的针状铁素体和柱状晶状态导致其韧性比热影响区稍差。0 ℃下的母材和热影响区冲击断口形貌呈韧窝形状,而焊缝断口形貌则为准解理特征。
Abstract:
In this paper, it carried out the mechanical properties test, microstructure observation and SEM scan test for the welded joint of automatic submerged arc welding about X90M pipeline steel plate. The tests showed that the weld microstructure is mainly composed of acicular ferrite and granular bainite,the heat affected zone(HAZ) includes granular bainite
 and a small amount of blocky ferrite. The hardness test results showed that no obvious softening phenomenon exist in HAZ, the impact absorbed energy of the weld and HAZ are more sensitive to temperature, but the cross distribution of acicular ferrite in the weld and the columnar crystal state leads to the toughness is a bit poor to HAZ. The impact fracture appearance of the base metal and HAZ below 0 ℃ display the dimple shape, and the weld fracture morphology is quasi cleavage feature.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2015-04-25
作者简介:于   磊(1983—),男,工程硕士,工程师,现从事压力管道、压力容器检验检测及技术开发等工作,拥有管道检验师、无损检测高级等多项专业资质。
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