Improvement of the procedure of analysis of thermokinetic diagrams of phase transformations in metal of high-strength low-alloy steel welds

2021 ◽  
Vol 2021 (2) ◽  
pp. 40-46
Author(s):  
V.A. Kostin ◽  
◽  
V.V. Zhukov ◽  
Keyword(s):  
Phase Transformations ◽  
Alloy Steel ◽  
High Strength ◽  
Low Alloy Steel ◽  
Thermokinetic Diagrams ◽  
Steel Welds

Controlling distortion in gas metal arc high strength low alloy steel welds

2021 ◽  
Author(s):  
Rami Rafea Abdul-Ameer ◽  
Saad Hameed Al-Shafaie ◽  
Abdulsameea Jasim Jilabi
Keyword(s):  
Alloy Steel ◽  
High Strength ◽  
Low Alloy Steel ◽  
Steel Welds

Fracture toughness analysis of heat-affected zones in high-strength low-alloy steel welds

1993 ◽  
Vol 24 (5) ◽  
pp. 1133-1141 ◽  
Author(s):  
Sunghak Lee ◽  
Byung Chun Kim ◽  
Dongil Kwon
Keyword(s):  
Fracture Toughness ◽  
Alloy Steel ◽  
High Strength ◽  
Low Alloy Steel ◽  
Steel Welds

Mn-Depleted Zone Formation in Rapidly Cooled High-Strength Low-Alloy Steel Welds

2014 ◽  
Vol 45 (11) ◽  
pp. 4753-4757 ◽  
Author(s):  
Yongjoon Kang ◽  
Kyutae Han ◽  
Joo Hyun Park ◽  
Changhee Lee
Keyword(s):  
Alloy Steel ◽  
High Strength ◽  
Low Alloy Steel ◽  
Zone Formation ◽  
Steel Welds

Isochronal Phase Transformations of Low-Carbon High Strength Low Alloy Steel upon Continuous Cooling

2012 ◽  
Vol 84 (2) ◽  
pp. 184-191 ◽  
Author(s):  
Jie Huo ◽  
Yongchang Liu ◽  
Dantian Zhang ◽  
Zesheng Yan ◽  
Zhiming Gao
Keyword(s):  
Phase Transformations ◽  
Alloy Steel ◽  
High Strength ◽  
Low Carbon ◽  
Low Alloy Steel ◽  
Continuous Cooling

Microstructure and local brittle zone phenomena in high-strength low-alloy steel welds

1991 ◽  
Vol 22 (1) ◽  
pp. 139-149 ◽  
Author(s):  
B. C. Kim ◽  
S. Lee ◽  
N. J. Kim ◽  
D. Y. Lee
Keyword(s):  
Alloy Steel ◽  
High Strength ◽  
Low Alloy Steel ◽  
Brittle Zone ◽  
Steel Welds

Temperature, macrostructure and hardness in high strength low alloy steel welds

2003 ◽  
Vol 8 (5) ◽  
pp. 334-339 ◽  
Author(s):  
D. W. Moon ◽  
S. G. Lambrakos ◽  
R. J. Wong ◽  
E. A. Metzbower
Keyword(s):  
Alloy Steel ◽  
High Strength ◽  
Low Alloy Steel ◽  
Steel Welds

Effect of Titanium Oxide on Phase Transformation for Low Alloy High Strength Steel Welds

2012 ◽  
Vol 531-532 ◽  
pp. 92-96
Author(s):  
Cui Xin Chen ◽  
Hui Fen Peng ◽  
Pu Zhao ◽  
Yuan Yuan Li ◽  
Liang Yan
Keyword(s):  
Phase Transformation ◽  
Titanium Oxide ◽  
Alloy Steel ◽  
Transformation Temperature ◽  
Spherical Shape ◽  
High Strength ◽  
Phase Transformation Temperature ◽  
Low Alloy Steel ◽  
Mean Size ◽  
Steel Welds

Aimed at improving mechanical properties of high strength low alloy steel welds, oxides with high melting point and high stability were added into steel liquid. By thermodynamics calculation and thermal simulating technology, phase transformation characteristics of low alloy steel weld with TiO2addition were investigated. The results showed that TiO2added in welds led to the decrease of phase transformation temperature and the wideness of γ→α transformation temperature range. The starting and finishing transformation temperature of ferrite respectively dropped about 311K and 486K on the cooling condition of 373K/s. Moreover, the complex inclusions of TiOx-MnO-SiO2-MnS with spherical shape and 0.67μm mean size formed in weld metal. In addition, only acicular ferrite existed in the titanium oxide added welds. So it was concluded that titanium oxide can effectively be used to control phase transformation and then achieve fine and favorable microstructure.

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