Sliding wear performance of cobalt-based alloys in molten-Al-added zinc bath

Song, Jin-Hwa

doi:10.1016/s0043-1648(97)00092-6

Cited by 24 publications

(9 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They operate in hostile environment involving the effects of abrasive wear, molten metal attack and temperature. Galvanizers have been worked in order to extend the service life of pot hardware, in particular bearings, reducing line stops and improving the quality of galvanized products [1][2][3][4][5] . The continuous search for materials that can withstand such harsh demands led to the use of Laves phase reinforced Co-based alloys, the CoCrMoSi alloy system.…”

Section: Introductionmentioning

confidence: 99%

Effect of processing on microstructure and properties of CoCrMoSi alloy

Scheid

D'Oliveira

2013

Mat. Res.

View full text Add to dashboard Cite

CoCrMoSi alloys microstructure is affected by processing and their properties have been associated with the high volume fraction of Laves phase. However, not much has been reported on the effect of structure refinement and morphology on the properties of these alloys. This paper evaluates a CoCrMoSi alloy processed by centrifugal casting and Plasma Transferred Arc (PTA) hardfacing, aiming to understand the correlation between microstructure and properties at room temperature in the as-processed condition and following exposure at 600 °C. Characterization was carried out using scanning electron microscopy, X-ray diffraction, hardness and wear tests. The cooling rates associated with each of the processing techniques used account for the developed microstructures and associated hardness, a 626 HV 0,5 cast alloy and 649 HV 0,5 deposited alloy, the former exhibiting a coarser microstructure. Wear behavior was determined by the dispersion of solid solution areas in the microstructure and as a consequence temperature exposure aggravated the poorer wear resistance of the cast alloy. The finer phase dispersion formed in coatings overlapped the deleterious effects of dilution and account for the stable wear behavior after temperature exposure.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of processing on microstructure and properties of CoCrMoSi alloy

Scheid

D'Oliveira

2013

Mat. Res.

View full text Add to dashboard Cite

show abstract

“…Co-based Stellite Ò alloys are extensively used for galvanizing hardware ( Ref 13,18,19,22,23) and their reaction and dissolution mechanism closely parallel those of Fe alloys. Aluminum reacts with Co to form a Co-Al surface layer, even at very low Al concentrations ( Ref 19).…”

Section: Cobalt-based Alloysmentioning

confidence: 99%

Review of Thermal Spray Coating Applications in the Steel Industry: Part 2—Zinc Pot Hardware in the Continuous Galvanizing Line

Matthews

James

2010

J Therm Spray Tech

View full text Add to dashboard Cite

This two-part article series reviews the application of thermal spray coating technology in the production of steel and steel sheet products. Part 2 of this article series is dedicated to coating solutions in the continuous galvanizing line. The corrosion mechanisms of Fe-and Co-based bulk materials are briefly reviewed as a basis for the development of thermal spray coating solutions. WC-Co thermal spray coatings are commonly applied to low Al-content galvanizing hardware due to their superior corrosion resistance compared to Fe and Co alloys. The effect of phase degradation, carbon content, and WC grain size are discussed. At high Al concentrations, the properties of WC-Co coatings degrade significantly, leading to the application of oxide-based coatings and corrosion-resistant boride containing coatings. The latest results of testing are summarized, highlighting the critical coating parameters.

show abstract

“…The influence of the content and morphology of carbide on the abrasive wear of cobalt-based alloys has also been a topic of research in published literature [9][10][11][12][13][14][15]. For example, various wear mechanisms during the sliding wear tests, such as carbide fracture, carbide pullout, and ploughing on the matrix have previously been reported [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%