Effects of yttrium on microstructure, mechanical properties and high-temperature wear behavior of cast Stellite 6 alloy

Wang, Linchun; Li, D.Y.

doi:10.1016/s0043-1648(03)00057-7

Cited by 69 publications

(41 citation statements)

References 22 publications

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“…Es sorgt für eine Reduzierung der Wachstumsrate der Oxidschicht und verbessert außerdem die Schichthaftung auf dem Substrat, gleichzeitig können teilweise keine merkbaren Ä nderungen der Härte und mechanischen Eigenschaften gemessen werden, teilweise kommt es zu optimierten mechanischen Eigenschaften [12,14,15,16,19].…”

Section: Stand Der Technikunclassified

“…Diese Ausscheidung verursacht viele, wenn nicht alle, der bekannten positiven Effekte der reaktiven Elemente [16,19].…”

Section: Stand Der Technikunclassified

“…Bei gleichzeitigem Einwirken von Wärme, Oxidation und Verschleiß kann der Oxidfilm durch Hartpartikelabrasion zerstört werden, was zu frischen, verletzlichen Oberflächen, und somit zu einer Erhöhung der Verschleißrate führt [16] Zur Bestimmung der Schichtdicke wurde das Kalottenschliffverfahren eingesetzt. Es zeigen sich die gleichen Ergebnisse, die auch durch die Vermessungen während der Morphologieuntersuchungen mit REM auftraten.…”

Section: Stand Der Technikunclassified

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Verschleißmechanismen von CrAlYN PVD Schichten bei erhöhten Temperaturen

Scheerer¹,

Hoche

Allebrandt

et al. 2007

Materialwissenschaft Werkst

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In der spanenden Fertigung wird aus vielfältigen Gründen zunehmend auf den Einsatz von Kühl-und Over the past years there have been developments in machining operations to replace the use of liquid cooling by dry cutting operations. This results in higher loads for the tools and therefore demands the continuous development of surface coatings. CrAlYN-coatings designed at the Institute for Materials Technology (IfW) in Darmstadt, Germany, show beneficial tribological properties especially at high loads and high temperatures. Samples of different yttrium content have been distinguished and compared to an industrial TiAlN coating. Even though the configuration of the CrAlYN coatings is not yet as optimized as that of the TiAlN, which leaves plenty of room for improvement, the CrAlYN shows comparable and partly superior properties to the TiAlN coating. An increasing yttrium-content of the CrAlYN leads to a more amorphous microstructure and to finer and denser morphology with a smoother surface. The TiAlN on the other hand exhibits a porous, columnar structure. This results in advantages in the wear behavior as well as in the oxidation resistance. Furthermore, a distinct improvement of the adhesion of the layer to the carrier is determinable, which results in higher sustainable loads at the scratch test.

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Section: Stand Der Technikunclassified

“…Diese Ausscheidung verursacht viele, wenn nicht alle, der bekannten positiven Effekte der reaktiven Elemente [16,19].…”

Section: Stand Der Technikunclassified

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Verschleißmechanismen von CrAlYN PVD Schichten bei erhöhten Temperaturen

Scheerer¹,

Hoche

Allebrandt

et al. 2007

Materialwissenschaft Werkst

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“…The cast alloy exhibits a hypoeutectic microstructure with the primary FCC Corich dendrites surrounded by Cr-rich M 7 C 3 (M=metal) eutectic carbides. With the addition of molybdenum, silicon or yttrium, M 23 C 6 carbides could also be formed [6][7][8]. 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].…”

Section: Introductionmentioning

confidence: 99%

Single asperity nanoscratch behaviour of HIPed and cast Stellite 6 alloys

Ahmed

Ashraf

Elameen

et al. 2014

Wear

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“…It was shown that Stellite 3 had the highest resistance to erosion; Stellite 6 had the lowest and Stellite 20 had the similar erosion resistance to Stellite 6. The studies in the effects of yttrium addition on the high-temperature wear behaviour of Stellite alloys [6][7][8] showed that the wear losses of the specimens under pin-on-disc wear test increased with the increase of specimen temperature. Among these alloys, the wear loss of Y-free specimen was the largest.…”

Section: Introductionmentioning

confidence: 99%

Tribological Behavior of Stellite 720 Coating under Block-on-Ring Wear Test

Liu¹,

Yang²,

Gao³

2012

MSA

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Stellite 720 is a high-carbon Co-Cr-Mo alloy, designed for severe wear/corrosion environments. This article presents a study of the Stellite 720 coating on stainless steel 304 under block-on-ring wear test. The coating is deposited through a slurry/powder metallurgy sintering process. Micro-hardness indentation test is conducted on the cross section of the coating specimen to investigate the hardness of individual phases of the coating material and the dilution effect of the substrate material on the coating layer. The tribological behavior of the coating under low and high-load wear is investtigated. The worn surfaces of the coating specimens are analyzed using a Philips XL30S FEG scanning electron microscope (SEM) with an EDAX energy dispersive X-ray (EDX) spectroscopy system. The experimental results are discussed to explore the wear mechanisms of the Stellite 720 coating under block-on-ring wear.

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Effects of yttrium on microstructure, mechanical properties and high-temperature wear behavior of cast Stellite 6 alloy

Cited by 69 publications

References 22 publications

Verschleißmechanismen von CrAlYN PVD Schichten bei erhöhten Temperaturen

Verschleißmechanismen von CrAlYN PVD Schichten bei erhöhten Temperaturen

Single asperity nanoscratch behaviour of HIPed and cast Stellite 6 alloys

Tribological Behavior of Stellite 720 Coating under Block-on-Ring Wear Test

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