Effect of welding wire and groove angle on mechanical properties of high strength steel welded joints

2017 ◽  
Vol 48 (9) ◽  
pp. 912-921 ◽  
Author(s):  
C. Evci ◽  
H. Işık ◽  
M. Macar
Keyword(s):  
Mechanical Properties ◽  
Welded Joints ◽  
High Strength Steel ◽  
High Strength ◽  
Welding Wire

Development of High-Strength Steel Plates for Low-Temperature Use

1988 ◽  
Vol 110 (3) ◽  
pp. 171-176
Author(s):  
Y. Nakano ◽  
Y. Saito ◽  
K. Amano ◽  
M. Koda ◽  
Y. Sannomiya ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Low Temperature ◽  
Yield Strength ◽  
Structural Steel ◽  
Welded Joints ◽  
High Strength Steel ◽  
Control Process ◽  
Charpy Impact ◽  
High Strength ◽  
Steel Plates

This paper describes the metallurgical approaches for producing 415MPa and 460MPa yield strength offshore structural steel plates and the mechanical properties of the steel plates and their welded joints. A thermo-mechanical control process (TMCP) was adopted to manufacture YP415MPa and YP460MPa steel plates with weldability comparable to conventional YP355MPa steel plates. The Charpy impact and CTOD tests of the steel plates and their welded joints proved to be very good.

Research on Welding Process of Low Alloy High Strength Steel 20MnTiB

2019 ◽  
Vol 815 ◽  
pp. 114-119
Author(s):  
Zhen Liang Li ◽  
Hao Ke ◽  
Yang Shen ◽  
Xi Wang ◽  
Jiao Zhong
Keyword(s):  
Mechanical Properties ◽  
Welded Joints ◽  
High Strength Steel ◽  
Welded Joint ◽  
Welding Process ◽  
High Strength ◽  
Post Heat Treatment ◽  
Line Energy ◽  
Metallographic Structure ◽  
Strength Change

In this paper, the properties of the base metal of the low-alloy high-strength steel 20MnTiB, the welding process and the microstructure and properties of the welded joints were studied. The results are as follows: post-heat treatment below 400°C, the strength change of the steel decreases slowly, the elongation does not change significantly, and the metallographic structure is not obvious. When the temperature is above 400, the strength is greatly reduced. And its plasticity increases remarkably, and precipitates on the grain boundary are precipitated and grown on the metallographic structure. When the line energy is in the range of 9.6~12.0kJ/cm, the mechanical properties and microstructure of the welded joints meet the requirements, and the welding process that meets the requirements is studied. Finally, the mechanical properties and microstructure of the welded joint are studied. Provide a reference for the research and application of steel.

Structure and Properties of Laser-Welded Joints from High-Strength Steels

2014 ◽  
Vol 682 ◽  
pp. 240-245 ◽  
Author(s):  
O. Berdnikova ◽  
V. Sydorets ◽  
T. Alekseienko
Keyword(s):  
Experimental Data ◽  
Mechanical Properties ◽  
Phase Composition ◽  
Welded Joints ◽  
High Strength Steel ◽  
Crack Nucleation ◽  
High Strength Steels ◽  
High Strength ◽  
Structure And Properties ◽  
Welding Zone

Presented are the results of investigations of peculiarities of structure formation and phase composition in a metal of laser-welded joints from high-strength steel 14KhGN2MDAFB. The analytical evaluations of strengthening along a welding zone and crack nucleation stresses in the places of stress concentrators determined using the experimental data that a structure being formed provides for uniform level of mechanical properties and crack resistance of the welded joints.

scholarly journals Microstructure Evolution and Mechanical Properties of Underwater Dry and Local Dry Cavity Welded Joints of 690 MPa Grade High Strength Steel

Materials ◽  
2018 ◽  
Vol 11 (1) ◽  
pp. 167 ◽  
Author(s):  
Yonghua Shi ◽  
Kun Sun ◽  
Shuwan Cui ◽  
Min Zeng ◽  
Jianglong Yi ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Microstructure Evolution ◽  
Welded Joints ◽  
High Strength Steel ◽  
High Strength
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