The influence of yttrium ion implantation on the oxidation behaviour of powder metallurgically produced chromium

Stroosnijder, M.F.; Sunderkötter, J. D.; Cristóbal, M.J.; Jenett, Holger; Isenbügel, K.; Baker, Mark

doi:10.1016/0257-8972(95)02741-6

Cited by 82 publications

(29 citation statements)

References 10 publications

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“…25,27 Other studies have also reported the reduced oxidation rates of Y containing or Y 2 O 3 coated Fe-Cr alloys to formation of YCrO 3 and/or YCrO 4 . 26,[28][29][30][31][32][33][34] It has also been reported that below 1100 °C oxidation is dominated by short circuit diffusion. 35 That is, the oxide scale grain boundaries are fast diffusion paths for migrating ions.…”

Section: Discussionmentioning

confidence: 95%

High Temperature Oxidation Behavior of Yttrium Dioxide Coated Fe-20Cr Alloy

2016

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Section: Discussionmentioning

confidence: 95%

High Temperature Oxidation Behavior of Yttrium Dioxide Coated Fe-20Cr Alloy

2016

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“…Exceeds the yttrium content a threshold value, negative effects, such as reduced wear resistance, can be observed in the oxide film. A reason for this behaviour may be the formation of a brittle Co 17 Y 2 compound [40,45,46,49].…”

Section: Boron Nitridementioning

confidence: 96%

Modern materials for forming and cutting tools – overview

Berger

Scheerer

Ellermeier³

2010

Materialwissenschaft Werkst

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Materials are an ever-changing field of science with high innovation potential. The knowledge in this subject is fundamental for manufacturing industry. Future products play a decisive role in choosing materials. With new production and processing technologies the quality of materials was improved significantly. Modern heat treatments and high specialized coatings create properties, which lead for example to high speed machining with an excellent productivity. Under these conditions, it is necessary, to develop customized products. This paper presents an overview of the state of the art of modern materials for forming and cutting tools and depicts the investigation on tool steels, cemented carbides, ceramics and materials with very high hardness and describes some selected fields of innovation in these fields.

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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

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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The influence of yttrium ion implantation on the oxidation behaviour of powder metallurgically produced chromium

Cited by 82 publications

References 10 publications

High Temperature Oxidation Behavior of Yttrium Dioxide Coated Fe-20Cr Alloy

High Temperature Oxidation Behavior of Yttrium Dioxide Coated Fe-20Cr Alloy

Modern materials for forming and cutting tools – overview

Verschleißmechanismen von CrAlYN PVD Schichten bei erhöhten Temperaturen

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