Microstructural and Inclusion Characteristics of C–Mn Steel Welds at a Minimal Level of Titanium

Seo, Kangmyung; Kim, Ka Hee; Kim, Hee Jin; Ryoo, Hoisoo; Evans, G. M.; Lee, Changhee

doi:10.1007/s12540-019-00390-4

Cited by 13 publications

(5 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The content of ferrite nucleated on titanium oxides observed in welds was up to 90%. [74,76,113] It is hard to obtain such high content of IGF or IAF in low-carbon steel. The quantitative effects of titanium oxides on the percentage of ferrite and on the combination property need to be further studied.…”

Section: The Size Quantity and Distribution Control Of Titanium Oxidementioning

confidence: 99%

Review of Research on Titanium Oxides in Low‐Carbon Steel

Lei,

Zhang,

et al. 2023

steel research int.

View full text Add to dashboard Cite

Titanium oxides, which act as nuclei for intragranular ferrite, are common inclusions in low carbon steel. The interlocking structure of intragranular ferrite greatly improves the mechanical properties of low carbon steel. To make the best use of this kind of oxide, we reviewed the types, sizes and distribution properties of effective titanium oxides that can promote intragranular ferrite nucleation. We summarized the control techniques of titanium oxides as follows: (1) Ti2O3 is one of the most effective of the common titanium oxides, followed by TiO and TiO2. The type of titanium oxide can be affected by controlling the Ti/O mass ratio in molten steel. (2) Titanium oxide with the size range of 0.4‐4 μm can effectively promote the nucleation of IGF or IAF, among them, titanium oxide about 1 μm is the most beneficial to IAF nucleation. (3) In order to obtain the titanium oxides with effective size, the precipitation of titanium oxides should be controlled during the solidification process, and this process can be achieved in the existing rapid solidification technology. Under the same conditions, the higher solidification rate can obtain finer titanium oxide.This article is protected by copyright. All rights reserved.

show abstract

Section: The Size Quantity and Distribution Control Of Titanium Oxidementioning

confidence: 99%

Review of Research on Titanium Oxides in Low‐Carbon Steel

Lei,

Zhang,

et al. 2023

steel research int.

View full text Add to dashboard Cite

show abstract

“…Seo et al [51] showed that a high AF fraction can be achieved by adding >400 ppm of Ti in multi-pass arc welding. Later, it was claimed that a minimum of 9 ppm of Ti is needed to boost the fraction of AF from 5 % to 70 % in low carbon C-Mn steel at 3-16 ppm of Al [57]. The difference in results can be related to the oxygen and Al levels within the WM.…”

Section: Weld Characterization Using Y-groovementioning

confidence: 99%

Effect of preheating and preplaced filler wire on microstructure and toughness in laser-arc hybrid welding of thick steel

Bunaziv

Langelandsvik

Ren

et al. 2022

Journal of Manufacturing Processes

View full text Add to dashboard Cite

“…In this work, all these factors, dilution, filler metal, and the shielding gas, had influence on the properties of weld metal, due to their effect on the chemical composition and microstructure. Indeed, while the increase in carbon content as consequence of higher dilution is a contributing factor for obtaining low impact toughness [40,57], the addition of titanium [35,[57][58][59][60][61][62][63][64] promoted the formation of small inclusions ( Fig. 13) and refined the microstructure (Fig.…”

Section: Mechanical and Microstructural Properties Of The Welded Jointmentioning

confidence: 99%

Influence of rotation frequency and rotation diameter on mechanical properties and microstructure of weld metal produced by MCAW-RE

Silveira

Filho

Costa

et al. 2020

Int J Adv Manuf Technol

View full text Add to dashboard Cite

The MCAW process with rotating electrode (MCAW-RE) is a variation of the conventional gas metal arc welding process, which a metal-cored wire is submitted to a rotational movement along a pre-established diameter. This process enhances narrow gap welding, since the rotational motion of the electrode allows the electric arc to reach peripheral regions of the groove, preventing lack of fusion on the sidewall. As a result, reduced costs and superior productivity compared with the conventional GMAW process are obtained. The limited literature about this process is focused on the operational characteristics, and works studying the mechanical properties are not available. Thus, this work evaluates the mechanical and microstructural properties of weld metals obtained by the MCAW-RE process in order to allow a decision about its technical feasibility to replace the GMAW process in industry. Initially, beads on plate weld tests were performed with varying rotation frequency and rotation diameter, in order to determine the parameters to be used in welded joints. High-strength steel weld metals were obtained by welding performed in steel plates with dimensions of 500 × 300 × 10 mm. Mechanical tests and metallographic examination were carried out in samples removed transversally to the weld bead. The results showed that the impact toughness of the weld metals can achieve the requirements for several industrial applications. The results showed that the GMAW process with rotating electrode-cored wire has a high potential for replacement of the GMAW in industrial applications.

show abstract

Microstructural and Inclusion Characteristics of C–Mn Steel Welds at a Minimal Level of Titanium

Cited by 13 publications

References 33 publications

Review of Research on Titanium Oxides in Low‐Carbon Steel

Review of Research on Titanium Oxides in Low‐Carbon Steel

Effect of preheating and preplaced filler wire on microstructure and toughness in laser-arc hybrid welding of thick steel

Influence of rotation frequency and rotation diameter on mechanical properties and microstructure of weld metal produced by MCAW-RE

Contact Info

Product

Resources

About