The Influence of Zirconium and Boron on Low Carbon Steel Weld Metal Microstructure

1994 ◽  
Vol 116 (1) ◽  
pp. 26-31 ◽  
Author(s):  
D. W. Oh ◽  
D. L. Olson ◽  
R. H. Frost
Keyword(s):  
Carbon Steel ◽  
Weld Metal ◽  
Low Carbon Steel ◽  
Steel Weld ◽  
Low Carbon ◽  
Weld Deposit ◽  
Steel Weld Metal ◽  
Weld Metal Microstructure ◽  
Metal Microstructure

By substituting zirconium-boron additions for titanium-boron additions in the weld deposit, further understanding of the role of specific microalloying additions on the suppression of grain boundary ferrite and the promotion of the intragranular formation of acicular ferrite in low carbon steel weld metal is achieved.

Low carbon steel weld metal microstructures: The role of oxygen and manganese

1987 ◽  
Vol 9 (3) ◽  
pp. 253-267 ◽  
Author(s):  
P. F. Chaveriat ◽  
G. S. Kim ◽  
S. Shah ◽  
J. E. Indacochea
Keyword(s):  
Carbon Steel ◽  
Weld Metal ◽  
Low Carbon Steel ◽  
Steel Weld ◽  
Low Carbon ◽  
Steel Weld Metal

Sulphur-induced ductility-dip cracking in low carbon steel weld metal

1987 ◽  
Vol 1 (7) ◽  
pp. 686-690 ◽  
Author(s):  
Yu Erjing ◽  
Ying Huiyun ◽  
Liu Quan ◽  
Si Zhongyao
Keyword(s):  
Carbon Steel ◽  
Weld Metal ◽  
Low Carbon Steel ◽  
Steel Weld ◽  
Low Carbon ◽  
Steel Weld Metal

The Effect of Boron on the Impact Energy of Low-Carbon Steel Weld Metal at Low Temperatures

2018 ◽  
Vol 7 (2) ◽  
pp. 143-152 ◽  
Author(s):  
Seyyed Reza Amirabadizade ◽  
Shamsodin Shafinia ◽  
Hamed Sabet ◽  
Shamsodin Mirdamadi ◽  
Hossein Ebrahimnezhad-Khaljiri
Keyword(s):  
Carbon Steel ◽  
Weld Metal ◽  
Impact Energy ◽  
Low Temperatures ◽  
Low Carbon Steel ◽  
Steel Weld ◽  
Low Carbon ◽  
Steel Weld Metal ◽  
The Impact

Comprehensive Analysis for Microstructure Evolution in Welding

2008 ◽  
Vol 580-582 ◽  
pp. 25-28 ◽  
Author(s):  
Hidenori Terasaki ◽  
Yuichi Komizo ◽  
Mitsuharu Yonemura ◽  
Takahiro Osuki
Keyword(s):  
Phase Transformation ◽  
Weld Metal ◽  
Reciprocal Lattice ◽  
Low Carbon Steel ◽  
Transformation Process ◽  
Unidirectional Solidification ◽  
Steel Weld ◽  
Low Carbon ◽  
Time Resolved ◽  
Steel Weld Metal

Unidirectional solidification for low-carbon steel weld metal was characterized by using Time-Resolved X-Ray Diffraction (TRXRD) system. Solid-state phase transformation was also insitu observed in reciprocal lattice space. It was shown that TRXRD analysis had a potential as a comprehensive characterization technique for solidification and phase transformation process in welding. It made for the growth behavior of dendrites in unidirectional solidification and α γ δ − − phase transformation in steel weld metal to be characterized.

Crystal Orientation Relationships among Acicular Ferrite, Oxide and the Austenite Matrix in a Steel Weld Metal

2021 ◽  
Vol 1016 ◽  
pp. 1014-1018
Author(s):  
Hidenori Nako ◽  
Yong Jie Zhang ◽  
Goro Miyamoto ◽  
Tadashi Furuhara
Keyword(s):  
Weld Metal ◽  
Acicular Ferrite ◽  
Crystal Orientation ◽  
Low Carbon Steel ◽  
Welding Process ◽  
Steel Weld ◽  
Low Carbon ◽  
Orientation Relationships ◽  
Steel Weld Metal ◽  
Good Lattice

Acicular ferrite (AFα) formed on oxide particles in steel weld metals has a positive effect on toughness at low temperature. Good lattice coherency between AFα and oxide is one of the proposed reasons for promotion of AFα formation. Lattice coherency is affected by crystal structure of oxide and crystal orientation relationship (OR) between oxide and AFα. In the present study, ORs among AFα, oxide and γFe are investigated in a low carbon steel weld metal. Cube-cube (C-C) OR is observed between γFe and the oxide. It is probable that the oxide liquefied at high temperature, and then crystalized having the C-C OR with the surrounding γFe during cooling in welding process. Near Kurdjumov-Sachs (K-S) and near Baker-Nutting (B-N) ORs are observed between γFe/AFα and oxide/AFα, respectively. The misorientation from the B-N OR is larger than that from the K-S OR just after nucleation of AFα. This implies that AFα forms satisfying a near K-S OR with γFe essentially. It is supposed that formation of both the C-C (γFe/oxide) and near K-S (AFα/γ) ORs results in apparent formation of the near B-N OR between oxide and AFα.

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