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Microstructures and Cavitation Erosion Resistance of Ni60/TiC Plasma-Clad Coating
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Grain Boundary Character Distributions of Strain-Annealed 304 Stainless Steel
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First Principles Study on the Adsorption of Alkali Metal on C(100)( 2×1)
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Some Observations Regarding Erosion-Corrosion Performance of HVOF-Sprayed Cr3C2- NiCr and Cr3C2- NiCr-(25) WC-Co Coatings in Actual Boiler Environment
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Joining of Aluminum Foam/Aluminum Metal by Spark Plasma Sintering Process
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The Evolution of Surface Damage in Press-Fitted Shaft According to the Bending Stress
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Pack Boronizing of a Co-Cr-W-C Alloy

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Abstract:

Surface treatment of a Co-Cr-W-C based alloy by pack boronizing is performed in this study. Treating at temperatures between 950 and 1050oC for up to 5 hrs produces a layer-like boride coating. The phase and composition analysis of the boronized layer is carried out by means of optical and SEM, EPMA and XRD. The growth of overall boronized layer is observed to obey the parabolic law, suggesting that it occurs via a diffusion-controlled process. Along with the microstructural features of the boronized layer, some brief results of the improvements of the wear property of Co-Cr-W-C alloy by boronizing treatment are presented.

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Periodical:

Advanced Materials Research (Volumes 26-28)

Pages:

1357-1360

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.26-28.1357

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Online since:

October 2007

Authors:

Moon Hyun Yeo, Seung Jin Kim, Seong Hwan Bang, Dae Yeal Bae, Kwan Hee Han

Keywords:

Co-Cr-W-C (Stellite 6), Pack Boronizing, Surface Treatment

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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References

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[2] 0 Wear loss Friction coefficient Untreated Boronized (950oC, 3 hrs) Fig. 5. Comparison of wear test results obtained for untreated and boronized specimens.

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