[1]武 岳,石 凯,李 霄,等.热输入对CT90连续管对接接头热影响区组织及性能的影响[J].焊管,2018,41(1):5-9.[doi:DOI: 10.19291/j.cnki.1001-3938.2018.01.002]
 WU Yue,SHI Kai,LI Xiao,et al.The Effect of Heat Input on Microstructure and Properties of Heat Affected Zone of CT90 Coiled Tubing Welded Joint[J].,2018,41(1):5-9.[doi:DOI: 10.19291/j.cnki.1001-3938.2018.01.002]
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热输入对CT90连续管对接接头热影响区组织及性能的影响()
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
41
期数:
2018年第1期
页码:
5-9
栏目:
试验与研究
出版日期:
2018-01-28

文章信息/Info

Title:
The Effect of Heat Input on Microstructure and Properties of
Heat Affected Zone of CT90 Coiled Tubing Welded Joint
文章编号:
DOI: 10.19291/j.cnki.1001-3938.2018.01.002
作者:
武 岳石 凯李 霄刘彦明王洪铎
?西安石油大学 材料加工工程重点学科实验室,西安 710065
Author(s):
WU Yue SHI Kai LI Xiao LIU Yanming WANG Hongduo
?Key Laboratory of Materia1 Processing Engineering,? Xi,an Shiyou University, Xi,an 710065, China
关键词:
连续管焊接接头热输入组织硬度
Keywords:
coiled tubing welded joint heat input microstructure hardness
分类号:
TG407
DOI:
DOI: 10.19291/j.cnki.1001-3938.2018.01.002
文献标志码:
A
摘要:
为了保证连续油管对接焊后焊接接头的使用性能,研究了不同热输入对CT90连续油管对接接头热影响区组织及性能的影响,采用TIG焊工艺分析了3层对接焊过程中焊缝热影响区的组织和性能的变化。结果显示,粗晶区、完全重结晶区组织以贝氏体为主,不完全重结晶区、回火区组织为块状铁素体、少量珠光体和渗碳体,随着热输入的增加,焊缝的晶粒尺寸变大,热影响区中软化区的宽度及幅度增大,软化区逐渐远离焊缝中心。
Abstract:
In order to ensure the performance of butt welding joint, the different heat input of microstructure and properties of heat affected zone of butt welding joint of CT90 coiled tubing were researched, and the changes of? microstructure and properties of heat affected zone in 3 layers butt welding were analyzed by TIG welding.The results showed that the main structure of coarse grain zone and complete recrystallization zone was bainite, the structure of incomplete recrystallization zone and tempered zone were massive ferrite, minor pearlite and cementite. With the addition of heat input, grain size? of weld became larger, the width and extent of softening zone in heat affected zone were increased, and the softening zone? was away from the weld centre.?

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2017-12-03
作者简介: 武 岳(1987—), 博士研究生, 主要研究方向为焊接工艺及高性能铸铁合金。
更新日期/Last Update: 2018-02-23