Influence of acicular ferrite and bainite microstructures on toughness for an ultra-low-carbon alloy steel weld metal

1993 ◽  
Vol 12 (16) ◽  
pp. 1290-1293 ◽  
Author(s):  
J. R. Yang ◽  
C. Y. Huang ◽  
C. F. Huang ◽  
J. N. Aoh
Keyword(s):  
Weld Metal ◽  
Alloy Steel ◽  
Acicular Ferrite ◽  
Steel Weld ◽  
Low Carbon ◽  
Steel Weld Metal

scholarly journals The coexistence of acicular ferrite and bainite in an alloy-steel weld metal

1992 ◽  
Vol 11 (22) ◽  
pp. 1547-1548 ◽  
Author(s):  
J. R. Yang ◽  
C. C. Yang ◽  
C. Y. Huang
Keyword(s):  
Weld Metal ◽  
Alloy Steel ◽  
Acicular Ferrite ◽  
Steel Weld ◽  
Steel Weld Metal

The coexistence of acicular ferrite and bainite in an alloy-steel weld metal

1992 ◽  
Vol 11 (16) ◽  
pp. 1145-1146 ◽  
Author(s):  
J. R. Yang ◽  
C. C. Yang ◽  
C. Y. Huang
Keyword(s):  
Weld Metal ◽  
Alloy Steel ◽  
Acicular Ferrite ◽  
Steel Weld ◽  
Steel Weld Metal

Acicular ferrite transformation in deformed austenite of an alloy-steel weld metal

1995 ◽  
Vol 30 (19) ◽  
pp. 5036-5041 ◽  
Author(s):  
J. R. Yang ◽  
C. Y. Huang ◽  
C. F. Huang ◽  
J. H. Aoh
Keyword(s):  
Weld Metal ◽  
Alloy Steel ◽  
Acicular Ferrite ◽  
Steel Weld ◽  
Ferrite Transformation ◽  
Steel Weld Metal

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.

scholarly journals The Use of Compressed Air for Micro-Jet Cooling After MIG Welding

2016 ◽  
Vol 61 (3) ◽  
pp. 1405-1408
Author(s):  
D. Hadryś ◽  
T. Węgrzyn ◽  
J. Piwnik ◽  
Z. Stanik ◽  
W. Tarasiuk
Keyword(s):  
Weld Metal ◽  
Acicular Ferrite ◽  
Compressed Air ◽  
Steel Weld ◽  
Low Alloy Steel ◽  
Mig Welding ◽  
Jet Cooling ◽  
Metal Deposit ◽  
Steel Weld Metal ◽  
First Time

AbstractThe material selected for this investigation was low alloy steel weld metal deposit (WMD) after MIG welding with micro-jet cooling. The present investigation was aimed as the following tasks: obtained WMD with various amount of acicular ferrite and further analyze impact toughness of WMD in terms of acicular ferrite amount in it. Weld metal deposit (WMD) was first time carried out for MIG welding with micro-jet cooling of compressed air and gas mixture of argon and air. Until that moment only argon, helium and nitrogen were tested as micro-jet gases for MIG/MAG processes. An important role in the interpretation of the results can give methods of artificial intelligence.

scholarly journals Relation between Inclusion Surface and Acicular Ferrite in Low Carbon Low Alloy Steel Weld

2009 ◽  
Vol 49 (7) ◽  
pp. 1059-1062 ◽  
Author(s):  
Tomonori Yamada ◽  
Hidenori Terasaki ◽  
Yu-ichi Komizo
Keyword(s):  
Alloy Steel ◽  
Acicular Ferrite ◽  
Steel Weld ◽  
Low Carbon ◽  
Low Alloy Steel
Sign in / Sign up

Export Citation Format

Share Document