[1]张清清,章传国,郑 磊.去应力退火对X100M管线管组织性能的影响[J].焊管,2016,39(11):1-4.[doi:10.19291/j.cnki.1001-3938.2016.11.001]
　ZHANG Qingqing,ZHANG Chuanguo,ZHENG Lei.Effects of Stress Relief Annealing on the Microstructures and Properties of X100M Line pipe[J].,2016,39(11):1-4.[doi:10.19291/j.cnki.1001-3938.2016.11.001]
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去应力退火对X100M管线管组织性能的影响
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
39
期数:
2016年第11期
页码:
1-4
栏目:
试验与研究
出版日期:
2016-11-28

文章信息/Info

Title:
Effects of Stress Relief Annealing on the Microstructures
and Properties of X100M Line pipe
文章编号:
10.19291/j.cnki.1001-3938.2016.11.001
作者:
张清清; 章传国; 郑 磊
（宝钢集团中央研究院 钢管技术中心， 上海 201900）
Author(s):
ZHANG Qingqing;  ZHANG Chuanguo;  ZHENG Lei
（Center Research institute of Baosteel Group, Shanghai 201900, China）
关键词:
X100M管线管; 去应力退火; 显微组织; 强度; 冲击韧性
Keywords:
X100M line pipe;  stress relief annealing;  microstructure;  strength;  impact toughness
分类号:
TG156
DOI:
10.19291/j.cnki.1001-3938.2016.11.001
文献标志码:
A
摘要:
为了研究610 ℃去应力退火热处理对X100M管线管组织性能的影响，对退火前后X100M管线管分别取样，进行了母材显微组织观察、室温拉伸性能及低温韧性试验，并分析了退火前后低温冲击典型断口的形貌特征。结果表明，退火热处理后X100M管线管母材显微组织中尺寸细小的贝氏体铁素体含量减少，粗大的准多边形铁素体含量增多；X100M管线管的横向和纵向抗拉强度下降约60~70 MPa，延伸率提高2%~3%；退火后低温韧性有所降低，CVN冲击和DWTT断口均出现分离现象。
Abstract:
In order to study the effects of stress relief annealing at 610 ℃ on the microstructures and mechanical properties of X100M line pipe, sampling respectively on X100M line pipe before and after annealing, it carried out microstructure observation, tensile test at room temperature and low temperature toughness test, and also analyzed the typical low-temperature impact fracture morphology characteristics before and after annealing. The results showed that, in X100M line pipe base metal microstructure, the volume fraction of small size bainite decreased and the volume fraction of quasi-polygonal ferrite increased after annealing. Both the transverse and longitudinal tensile strength decreased about 60~70 MPa, while the elongation increased by 2%~3%. The low temperature toughness decreased, and the fracture separation phenomenon was
observed in CNV impact and DWTT fracture.

参考文献/References:

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相似文献/References:

[1]郑家胜,于 磊,彭 静,等.去应力退火对X80焊管残余应力影响分析[J].焊管,2019,42(1):24.[doi:10.19291/j.cnki.1001-3938.2019.1.004]
　ZHENG Jiasheng,YU Lei,PENG Jing,et al.Effect of Stress Relief Annealing on Residual Stress of X80 Welded Pipe[J].,2019,42(11):24.[doi:10.19291/j.cnki.1001-3938.2019.1.004]

备注/Memo

备注/Memo:
收稿日期： 2016-07-13
作者简介： 张清清（1989—）， 男， 工学博士， 主要从事油气输送用高性能管线钢、 管线管产品开发、 新工艺和新技术研究工作。
更新日期/Last Update: