Home Journals Articles Updates About
CN
image
收藏切换
Effect of Heat Input of MAG Welding on Microstructure and Mechanical Properties of DL510 Ultra-high Strength Steel
收藏切换
PDF
Yang LI1, Jinfeng WANG2
Mining and Metallurgical Engineering | 2023, 43(3) : 151 - 155
Less
收藏切换
Mining and Metallurgical Engineering | 2023, 43(3): 151-155
• MATERIALS •
Effect of Heat Input of MAG Welding on Microstructure and Mechanical Properties of DL510 Ultra-high Strength Steel
Full
Yang LI1, Jinfeng WANG2
Affiliations
  • 1.School of Mechanical Engineering, Tianjin Light Industry Vocational Technology College, Tianjin 300350, China
  • 2.School of Materials Science & Engineering, Hubei University of Automotive Technology, Shiyan 442002, Hubei, China
Published: 2023-06-01 doi: 10.3969/j.issn.0253-6099.2023.03.034
Outline
收藏切换

A 5 mm thick DL510 ultra-high strength steel (1 500 MPa) was welded by using metal active gas (MAG) arc welding. The influence of heat input on the microstructure and mechanical properties of weld joint was investigated, and the residual weld stress of the joint was eliminated by hammering while welding. The results show that with heat input within the range of 43-70 kJ/cm, the obtained weld joints can have a good shape. If hammering time is less than 20 min, the tensile strength of weld joint increases as hammering time prolongs; however, after hammering time exceeds 20 min, there is little variation in the tensile strength. With the increasing of heat input, the grain size of weld joints grows obviously, and a small amount of fine granular bainite structure appears in the coarse-grained area with the heat input of 70 kJ/cm, leading to improvement in the toughness of weld joints.

metal active gas (MAG) arc welding  /  welding  /  heat input  /  microstructure  /  weld joint  /  joint structure  /  ultra-high strength steel
Yang LI, Jinfeng WANG. Effect of Heat Input of MAG Welding on Microstructure and Mechanical Properties of DL510 Ultra-high Strength Steel[J]. Mining and Metallurgical Engineering, 2023 , 43 (3) : 151 -155 . DOI: 10.3969/j.issn.0253-6099.2023.03.034
Appendix
Less
Year 2023 volume 43 Issue 3
PDF
46
13
Cite this Article
BibTeX
Article Info
doi: 10.3969/j.issn.0253-6099.2023.03.034
  • Receive Date：2022-11-28
  • Online Date：2026-03-05
  • Published：2023-06-01
Article Data
Affiliations
History
  • Received：2022-11-28
Funding
Affiliations
    1.School of Mechanical Engineering, Tianjin Light Industry Vocational Technology College, Tianjin 300350, China
    2.School of Materials Science & Engineering, Hubei University of Automotive Technology, Shiyan 442002, Hubei, China
References
Share
https://castjournals.cast.org.cn/joweb/kygczz/EN/10.3969/j.issn.0253-6099.2023.03.034
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
010-62199257
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