Effect of Mo on microstructure and wear resistance of slag-free self-shielded metal-cored welding overlay

Liu, Dashuang; Wang, Jiayou; Zhang, Yu; Kannan, Rangasayee; Long, Weimin; Wu, Mingyang; Wang, Yiyu; Li, Leijun

doi:10.1016/j.jmatprotec.2019.02.024

Cited by 15 publications

(5 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 2(a) in the metallographic diagram, the light white hexagonal structure is primary carbide M 7 (C, B) 3 , and the peripheral gray and white radial structure is eutectic which consists of M 3 (C, B), martensite and retained austenite. 18) The microstructure of Ti-free hardfacing alloy is typical of hypereutectic high chromium cast iron. When the addition of Fe-Ti is 6 wt.%, the gray black quadrilateral phase can be observed (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…The high chromium iron-based hardfacing alloys fabricated by slag-free self-shielded flux-cored wires exhibited excellent wear resistance because of its high alloy filling into the core. [17][18][19][20][21] The addition of deoxidizers such as C, Al, Mg, Mn and Si in the filler metal helped reduce the amount of porosity. Furthermore, the formation of CO gas resulted in the welding pool boiling, thus leading to the absence of weld porosity.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Acidic Corrosion Behavior of Slag-free Self-shielded Flux-cored Arc Welding Overlay

et al. 2022

Self Cite

View full text Add to dashboard Cite

The corrosion resistance of slag-free self-shielded flux-cored welding overlays with different ferrotitanium (Fe-Ti) additions in 3.5 wt.% NaCl + 0.01 mol/L HCl acidic solution was investigated. The corrosion occurs in the matrix rather than M 7 (C, B) 3 , M 3 (C, B) and TiC in the microstructure of all the welding overlays. The corrosion resistance of hypereutectic welding overlay is decreased when the Fe-Ti addition is increased from 0 wt.% to 12 wt.%. The corrosion resistance of the welding overlay is the lowest since the overlay is a eutectic structure at the Fe-Ti addition of 12 wt.%. The eutectic structure increases the interface of corrosion reaction, which accelerates the corrosion rate and increases the corrosion current. With the Fe-Ti addition increasing from 12 wt.% to 24 wt.%, the corrosion resistance of the welding overlays with hypoeutectic structure is gradually increased, owing to the increase of the proportion of TiC and chromium content in the matrix.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Acidic Corrosion Behavior of Slag-free Self-shielded Flux-cored Arc Welding Overlay

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…The high chromium iron-based flux-core wires are used for the repairing of worn surfaces in order to restore their sizes and help performance even more [1][2][3]. Much attention has been focused on the chemical composition-microstructure-wear resistance relationships of high chromium iron-based weld overlay [4][5][6]. The different carbon and chromium additions of overlays produced hypoeutectic, eutectic or hypereutectic structures [7].…”

Section: Introductionmentioning

confidence: 99%

Alkaline corrosion resistance of slag‐free self‐shielded titanium‐added metal‐cored welding overlay

Liu

Long

et al. 2023

Materialwissenschaft Werkst

View full text Add to dashboard Cite

The corrosion resistance of slag‐free self‐shielded metal‐cord welding overlay with different ferrotitanium additions in alkaline solution (pH=14) was investigated. The results show that the self‐corrosion potential Ecorr is the highest and the self‐corrosion current density Icorr is the minimum when the addition of ferrotitanium is 6 wt. %. titanium carbide corrodes before other carbides in alkaline solution due to the absence of iron. A ferrotitanium addition of 6 wt. % can provide the best corrosion resistance to the fabricated welding overlays, as an increased ferrotitanium addition will result in a decrease in chromium carbide and an increase in titanium carbide, of which titanium carbide is the most prone to corrosion, followed by chromium carbide, and finally the austenitic matrix.

show abstract

“…Fe-C-B-Cr alloys has excellent wear resistance, good corrosion resistance, and oxidation resistance [8]. The more widespread by Fe-Cr-B-C and Fe-Cr-B-C-Ti system alloys, which have the best mechanical properties and wear resistance [10][11][12][13]. Available information suggests that the abrasive wear resistance of materials depends on factors like microstructure (their size and content), and mechanical properties of materials [14].…”

Section: Introductionmentioning

confidence: 99%

Comparison of two-body abrasive wear resistance of high chromium boron-containing Fe–C B–13wt.%Cr Ti alloy with incomplete replacement of Cr for Cu the Fe C B 4wt.%Cr 7wt.%Cu–Ti alloy

Trembach¹,

Vynar²,

Trembach³

et al. 2022

View full text Add to dashboard Cite

Hardfacing process commonly employed because of its low cost and high efficiency. The microstructure of an two sample of deposited metal by X-ray diffraction, scanning electron microscope (SEM). In this research, the mechanical and tribological properties of two deposited metal of Fe–C–Cr–B–Ti alloying systems, high chromium 140Cr13Si1MnBTi alloy, and low chromium and high copper 110Cr4Cu7TiVBAl alloy hradfecing by flux-cored arc welding process (FCAW) was studied. It provided a low content of chromium (4 wt.%) and a high content of copper (7 wt.% Cu). Results of the studies had showed that the introduction of exothermic addition (CuO‒Al) to the core filler of the flux‒cored wire electrode, change melting characteristic and provides the highest resistance of the deposited metal to abrasion wear due to additional alloying by copper and reduction in grain size.

show abstract

Effect of Mo on microstructure and wear resistance of slag-free self-shielded metal-cored welding overlay

Cited by 15 publications

References 12 publications

Acidic Corrosion Behavior of Slag-free Self-shielded Flux-cored Arc Welding Overlay

Acidic Corrosion Behavior of Slag-free Self-shielded Flux-cored Arc Welding Overlay

Alkaline corrosion resistance of slag‐free self‐shielded titanium‐added metal‐cored welding overlay

Comparison of two-body abrasive wear resistance of high chromium boron-containing Fe–C B–13wt.%Cr Ti alloy with incomplete replacement of Cr for Cu the Fe C B 4wt.%Cr 7wt.%Cu–Ti alloy

Contact Info

Product

Resources

About