Home Journals Articles Updates About
CN
image
收藏切换
Cause Analysis on Cracking Defect of 25Mn2RE Seamless Steel Pipe
收藏切换
Na Zhang1, 2, Zhi-li Li1, 2, Xiao-le Yao3, Wen-xiu Sun3
Rare Earth Steel | 2020, 46(5) : 38 - 42
Less
收藏切换
Rare Earth Steel | 2020, 46(5): 38-42
• Quality of Variety and Experiment and Research •
Cause Analysis on Cracking Defect of 25Mn2RE Seamless Steel Pipe
Full
Na Zhang1, 2, Zhi-li Li1, 2, Xiao-le Yao3, Wen-xiu Sun3
Affiliations
  • 1.Technical Center of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
  • 2.Inner Mongolia Enterprise Key Laboratory of Rare Earth Steel Products Research & Development, Baotou 014010, Inner Mongolia Autonomous Region, China
  • 3.Steel Tube Co. of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
Published: 2020-10-25 doi: 10.13647/j.cnki.btgkj.2020.05.013
Outline
收藏切换

The causes for surface crack defect of 25Mn2RE seamless steel pipe are analyzed and detected with the metalloscope, scanning electron microscope and energy dispersive spectroscopy. The results showed that its defects were mainly due to the cracks on the surface of billet and a large amount of iron oxide was formed inside the crack by heat with high temperature. Moreover, the serious banded structure of matrix caused transverse crack defect on the outer wall of pipe and bumps formed due to the banded structure of the inner wall of pipe delaminated when the pipe was subject to bigger circumferential extrusion stress during the tubulation and forming process of user.

seamless steel pipe  /  cracking  /  billet  /  banded structure  /  stress
张娜, 李智丽, 姚晓乐, 孙文秀. 25Mn2RE无缝钢管开裂缺陷原因分析. 包钢科技, 2020 , 46 (5) : 38 -42 . DOI: 10.13647/j.cnki.btgkj.2020.05.013
Na Zhang, Zhi-li Li, Xiao-le Yao, Wen-xiu Sun. Cause Analysis on Cracking Defect of 25Mn2RE Seamless Steel Pipe[J]. Science & Technology of Baotou Steel, 2020 , 46 (5) : 38 -42 . DOI: 10.13647/j.cnki.btgkj.2020.05.013
Appendix
Less
Year 2020 volume 46 Issue 5
43
9
Cite this Article
BibTeX
Article Info
doi: 10.13647/j.cnki.btgkj.2020.05.013
  • Receive Date：2020-06-15
  • Online Date：2026-10-20
  • Published：2020-10-25
Article Data
Affiliations
History
  • Received：2020-06-15
Affiliations
    1.Technical Center of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
    2.Inner Mongolia Enterprise Key Laboratory of Rare Earth Steel Products Research & Development, Baotou 014010, Inner Mongolia Autonomous Region, China
    3.Steel Tube Co. of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
References
Share
https://castjournals.cast.org.cn/joweb/xtg/EN/10.13647/j.cnki.btgkj.2020.05.013
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62662699(Operation and Technical Support)
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House