Laser surface alloying of Ni-plated steel with CO2 laser

Hussain, Ali; Ahmad, Ishaq; Hamdani, A H; Nussair, A.; Shahdin, S.

doi:10.1016/j.apsusc.2006.10.067

Cited by 5 publications

(3 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nitrogen was used as shielding gas to prevent surface oxidation and contamination. Phase transformation in Fe-Ni alloy from α to α+γ takes place at ∼5% Ni [12] and discussed in detail [8]. In case of Fe-Ni-Co alloy, the phase transformation is changed at ~ 4.7% contents of Ni, i.e., the solid line separating the α (bcc) to α+γ (bcc + fcc), as shown in Fig.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Laser Surface Alloying of Ni-Co Electroplated Low Carbon Steel

Hussain

Akhter

Farooq

et al. 2010

KEM

Self Cite

View full text Add to dashboard Cite

Laser surface alloying of Ni-Co electroplated steel using 900 W CW CO2 laser to develop Fe-Ni-Co alloy on the surface is reported. Fe-Ni-Co alloys of different compositions are produced by varying the working speed from 0.25 m/min to 3m/min and laser spot size from 0.6 mm to 5mm. The development of microstructure in the melted zone is analysed in terms of composition variation and cooling rate. The microhardness of newly formed alloys reported here are three times higher as compared to base metal. Martensite is observed in the laser modified zone.

show abstract

Section: Methodsmentioning

confidence: 99%

“…LSA of low alloy steel with Ni has been reported describing the formation of various binary alloys of different compositions [7]. LSA of Ni-plated steel and phase transformation in Fe-Ni alloys have already been reported [8]. LSA of aluminium plated Ni-P has also been carried out [9].…”

Section: Introductionmentioning

confidence: 99%

Laser Surface Alloying of Ni-Co Electroplated Low Carbon Steel

Hussain

Akhter

Farooq

et al. 2010

KEM

Self Cite

View full text Add to dashboard Cite

show abstract

“…Results have shown that the base metal on the brake drum surface of gray cast iron may be melted rapidly by laser technology. This can change the structure of the brake drum base metal, refine the grain, and greatly improve hardness, strength, and toughness [1][2][3]. By imitating the biological characteristics of organisms that exist in nature that show excellent wear and fatigue resistance [4,5], a bionic functional surface similar to the surface of such organisms can be fabricated by applying a laser to the inner wall of a gray cast iron brake drum [6,7].…”

Section: Introductionmentioning

confidence: 99%

Effects of Laser Melting Distribution on Wear Resistance and Fatigue Resistance of Gray Cast Iron

Yang

Zhou

Wang

et al. 2020

Metals

View full text Add to dashboard Cite

The coupling bionic surface is generally prepared by laser melting on the surface of a gray iron brake hub, which can allow the brake hub to achieve excellent wear resistance and fatigue resistance. The designs of most previous experiments have been based on independent units that were uniform in their distribution patterns. Although some progress has been made in the optimization of cell features, there is still room for further improvement with respect to bionics and experimental optimization methods. Here, experiments on units with non-uniform distributions of different distances were used to rearrange and combine the bionic elements. This paper is that the original uniform distribution laser melting strengthening model was designed as a non-uniform distribution model, and the heat preservation and tempering strengthening effect of continuous multiple melting strengthening on the microstructure of the melting zone is discussed. The mechanism of crack initiation and the mode of crack propagation were analyzed. The relationship between the internal stress in the melting zone and the crack initiation resistance was also discussed. In this paper, the mechanism of different spacing distribution on the surface of gray cast iron by laser remelting is put forward innovatively and verified by experiments, which provides a solid theoretical basis for the follow-up industrial application.

show abstract

Multivortex convection of metal in molten pool with dispersed impurity induced by laser radiation

Ковалев

Gurin

2014

International Journal of Heat and Mass Transfer

View full text Add to dashboard Cite

Laser surface alloying of Ni-plated steel with CO2 laser

Cited by 5 publications

References 9 publications

Laser Surface Alloying of Ni-Co Electroplated Low Carbon Steel

Laser Surface Alloying of Ni-Co Electroplated Low Carbon Steel

Effects of Laser Melting Distribution on Wear Resistance and Fatigue Resistance of Gray Cast Iron

Multivortex convection of metal in molten pool with dispersed impurity induced by laser radiation

Contact Info

Product

Resources

About