Synthesis and evaluation of hardness and sliding wear resistance of electrodeposited nanocrystalline Ni–W alloys

Sriraman, K. R.; Raman, S. Ganesh Sundara; Seshadri, S.K.

doi:10.1016/j.msea.2005.11.046

Cited by 149 publications

(78 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…At first, we decided the composition of bulk amorphous Ni-W alloy from the reported data 9,[12][13][14][15][16][17][18][19] with our present results. Figure 1 shows the relationship between grain size and W-concentration in electrodeposited Ni-W alloys.…”

Section: Methodsmentioning

confidence: 91%

See 1 more Smart Citation

Application of Electroforming Process to Bulk Amorphous Ni-W Alloy

et al. 2011

View full text Add to dashboard Cite

Homogeneous bulk amorphous Ni-W alloy with thickness of more than 2 mm is fabricated by an electroforming process. By suppressing the side reaction and by preserving the mass balance between consumed ions by electrodeposition and supplemented ions by the solution of Ni and W anodes in the electroforming system, the standard deviation of W-concentration throughout the specimen is kept to 1.3 at%. As the result of micro-Vickers hardness tests, the standard deviation of micro-hardness decreases about 90% in bulk materials in comparison with thin-film materials fabricated by conventional electroforming process. This result indicates that it is important to minimize the fluctuation of Wconcentration in the specimen for obtaining the micrometer-scale high reliability of hardness. The compressive strength of bulk amorphous Ni-W alloy is about 2.7 GPa. High compressive strength of amorphous Ni-W alloy can be clearly shown.

show abstract

Section: Methodsmentioning

confidence: 91%

“…[9] T. J. Rupert et al [12] K.R. Sriraman et al [13] S. Kabi et al [14] A. Giga et al [15] H. Cesiulis et al [16] C.A. Schuh et al [17] T. Yamasaki [18] H. Somekawa et al [19] 0.035 at%/mm in the bulk specimen.…”

Section: Methodsmentioning

confidence: 99%

Application of Electroforming Process to Bulk Amorphous Ni-W Alloy

et al. 2011

View full text Add to dashboard Cite

show abstract

“…Many researchers report over the years the importance of high hardness for the good wear resistance and show the strong linear relationships between these two properties for different polycrystalline materials like Ni-W [11], Ni-Fe-W [11], Ni-P [12] and other [13]. However, this is not always the rule.…”

Section: Introductionmentioning

confidence: 99%

WEAR RESISTANCE OF ELECTRODEPOSITED Fe-W ALLOY COATINGS UNDER DRY CONDITIONS AND IN THE PRESENCE OF RAPESEED OIL

et al. 2018

View full text Add to dashboard Cite

Amorphous Fe-W alloys with 25 at.% of W were electrodeposited under direct and pulse modes from glycolate-citrate bath with and without addition of polyethylene glycol. The tribological behavior of the coatings was studied at 1, 2 and 5 N loads under dry friction and in the presence of rapeseed oil films of 0.2-5.0 m thickness. The tribological behavior of obtained coatings at dry friction reveals their severe tribo-oxidation resulting in a high wear depth and coefficient of friction. Observed groove like surface with well-adhered particles inside the wear track point out on abrasive-adhesive wear mechanism of Fe-W alloys. In the presence of rapeseed oil films the wear mechanism changes, and values of coefficient of friction decrease up to 10 times compared to dry friction conditions. The optimum thickness of rapeseed oil film was 1 µm. This film has the satisfactory adhesion and uniform distribution on the surface, and could withstand up to 2 000 cycles.

show abstract

“…From practical point of view, alloys having nanocrystalline or amorphous structures have gained more interest since they usually possess better corrosion resistance and tribological properties (e. g. wear resistance). The later can be related to an increase in tungsten 208 content in the alloy which results in the grain size refinement and consequently in strengthening effect [14,15].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Corrosion and Tribological Behavior of Electrodeposited Tungsten Alloys

Vernickaite

Cesiulis

Цынцару

2017

Proccedings of International Scientific Conference "BALTTRIB 2017"

View full text Add to dashboard Cite

Tungsten alloy coatings with iron group metals (Ni, Fe, Co) are considered as advanced materials for various surface engineering applications. Such coatings should be resistant to mechanical and corrosive damage, and to have improved functionality and durability. Accordingly, the objectives of this review consist in a comparative study of available literature on corrosive and wear behavior of electrodeposited tungsten alloys with iron group metals, including our recent results on evaluation of electrodeposited Co-W coatings. The wear and corrosion resistance of Ni-W, Fe-W and Co-W strongly depends on the chosen deposition conditions and subsequently on tungsten content and structure of obtained protective coatings.

show abstract

Synthesis and evaluation of hardness and sliding wear resistance of electrodeposited nanocrystalline Ni–W alloys

Cited by 149 publications

References 32 publications

Application of Electroforming Process to Bulk Amorphous Ni-W Alloy

Application of Electroforming Process to Bulk Amorphous Ni-W Alloy

WEAR RESISTANCE OF ELECTRODEPOSITED Fe-W ALLOY COATINGS UNDER DRY CONDITIONS AND IN THE PRESENCE OF RAPESEED OIL

Evaluation of Corrosion and Tribological Behavior of Electrodeposited Tungsten Alloys

Contact Info

Product

Resources

About