Wear Resistant Amorphous and Nanocomposite Coatings

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Glass forming materials (critical cooling rate <10{sup 4}K.s{sup -1}) are promising for their high corrosion and wear resistance. During rapid cooling, the materials form an amorphous structure that transforms to nanocrystalline during a process of devitrification. High hardness (HV 1690) can be achieved through a controlled crystallization. Thermal spray process has been used to apply coatings, which preserves the amorphous/nanocomposite structure due to a high cooling rate of the feedstock particles during the impact on a substrate. Wear properties have been studied with respect to process conditions and feedstock material properties. Application specific properties such as sliding wear resistance have ... continued below

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Racek, O. March 26, 2008.

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Glass forming materials (critical cooling rate <10{sup 4}K.s{sup -1}) are promising for their high corrosion and wear resistance. During rapid cooling, the materials form an amorphous structure that transforms to nanocrystalline during a process of devitrification. High hardness (HV 1690) can be achieved through a controlled crystallization. Thermal spray process has been used to apply coatings, which preserves the amorphous/nanocomposite structure due to a high cooling rate of the feedstock particles during the impact on a substrate. Wear properties have been studied with respect to process conditions and feedstock material properties. Application specific properties such as sliding wear resistance have been correlated with laboratory tests based on instrumented indentation and scratch tests.

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PDF-file: 18 pages; size: 5.1 Mbytes

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  • Journal Name: Metallurgical and Materials Transactions , vol. 40A, no. 6, June 1, 2007, pp. 1; Journal Volume: 40; Journal Issue: 6

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  • Report No.: LLNL-JRNL-402714
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 1019066
  • Archival Resource Key: ark:/67531/metadc831351

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Office of Scientific & Technical Information Technical Reports

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  • March 26, 2008

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  • May 19, 2016, 3:16 p.m.

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  • Dec. 8, 2016, 1:53 p.m.

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Racek, O. Wear Resistant Amorphous and Nanocomposite Coatings, article, March 26, 2008; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc831351/: accessed December 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.