Microstructural and tribological observations in metallic glass forming alloy layers produced by high-power lasers

D.T.A. Matthews; V. Ocelík; J.Th.M. De Hosson

doi:10.2495/SECM070041

Microstructural and tribological observations in metallic glass forming alloy layers produced by high-power lasers

D.T.A. Matthews^*, V. Ocelík, J.Th.M. De Hosson

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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Abstract

Layers of Cu-based metallic glass forming compositions have been produced using high-power lasers. Laser surface remelting and laser cladding techniques provide sufficient cooling rates to form amorphous individual laser tracks and even coatings. The layers have been characterised by SEM, TEM, confocal and optical microscopy which have shown the layers may be fully amorphous, or (nano)crystalline. Hardness testing reveals that high hardness values are attainable for the layers ( 700 HV). Shear banding is found to be initiated during indentation testing. The processing of laser remelted layers developed from initial cladding has been analyzed and parameters are outlined which govern layer thickness, track width and ultimately the microstructural appearance of the layers.

Original language	English
Title of host publication	Computer Methods and Experimental Measurements for Surface Effects and Contact Mechanics VIII
Editors	J.Th.M. De Hosson, C.A. Brebbia, S.I. Nishida
Publisher	WIT Press
Pages	33-42
Number of pages	10
ISBN (Print)	978-1-84564-073-6
DOIs	https://doi.org/10.2495/SECM070041
Publication status	Published - 1 Dec 2007
Externally published	Yes
Event	8th International Conference on Computer Methods and Experimental Measurements for Surface and Contact Mechanics, CONTACT/SURFACE 2007 - Ashurst, United Kingdom Duration: 16 May 2007 → 18 May 2007 Conference number: 8

Publication series

Name	WIT Transactions on Engineering Sciences
Publisher	WIT Press
Volume	55
ISSN (Print)	1743-3533

Conference

Conference	8th International Conference on Computer Methods and Experimental Measurements for Surface and Contact Mechanics, CONTACT/SURFACE 2007
Abbreviated title	CONTACT/SURFACE
Country/Territory	United Kingdom
City	Ashurst
Period	16/05/07 → 18/05/07

Keywords

Amorphous
Friction
Hardness
Laser cladding

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.2495/SECM070041

Matthews2007microstructuralFinal published version, 2.68 MB

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Matthews, D. T. A., Ocelík, V., & De Hosson, J. T. M. (2007). Microstructural and tribological observations in metallic glass forming alloy layers produced by high-power lasers. In J. T. M. De Hosson, C. A. Brebbia, & S. I. Nishida (Eds.), Computer Methods and Experimental Measurements for Surface Effects and Contact Mechanics VIII (pp. 33-42). (WIT Transactions on Engineering Sciences; Vol. 55). WIT Press. https://doi.org/10.2495/SECM070041

Matthews, D.T.A. ; Ocelík, V. ; De Hosson, J.Th.M. / Microstructural and tribological observations in metallic glass forming alloy layers produced by high-power lasers. Computer Methods and Experimental Measurements for Surface Effects and Contact Mechanics VIII. editor / J.Th.M. De Hosson ; C.A. Brebbia ; S.I. Nishida. WIT Press, 2007. pp. 33-42 (WIT Transactions on Engineering Sciences).

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abstract = "Layers of Cu-based metallic glass forming compositions have been produced using high-power lasers. Laser surface remelting and laser cladding techniques provide sufficient cooling rates to form amorphous individual laser tracks and even coatings. The layers have been characterised by SEM, TEM, confocal and optical microscopy which have shown the layers may be fully amorphous, or (nano)crystalline. Hardness testing reveals that high hardness values are attainable for the layers ( 700 HV). Shear banding is found to be initiated during indentation testing. The processing of laser remelted layers developed from initial cladding has been analyzed and parameters are outlined which govern layer thickness, track width and ultimately the microstructural appearance of the layers.",

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booktitle = "Computer Methods and Experimental Measurements for Surface Effects and Contact Mechanics VIII",

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Matthews, DTA, Ocelík, V & De Hosson, JTM 2007, Microstructural and tribological observations in metallic glass forming alloy layers produced by high-power lasers. in JTM De Hosson, CA Brebbia & SI Nishida (eds), Computer Methods and Experimental Measurements for Surface Effects and Contact Mechanics VIII. WIT Transactions on Engineering Sciences, vol. 55, WIT Press, pp. 33-42, 8th International Conference on Computer Methods and Experimental Measurements for Surface and Contact Mechanics, CONTACT/SURFACE 2007, Ashurst, United Kingdom, 16/05/07. https://doi.org/10.2495/SECM070041

Microstructural and tribological observations in metallic glass forming alloy layers produced by high-power lasers. / Matthews, D.T.A.; Ocelík, V.; De Hosson, J.Th.M.
Computer Methods and Experimental Measurements for Surface Effects and Contact Mechanics VIII. ed. / J.Th.M. De Hosson; C.A. Brebbia; S.I. Nishida. WIT Press, 2007. p. 33-42 (WIT Transactions on Engineering Sciences; Vol. 55).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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AB - Layers of Cu-based metallic glass forming compositions have been produced using high-power lasers. Laser surface remelting and laser cladding techniques provide sufficient cooling rates to form amorphous individual laser tracks and even coatings. The layers have been characterised by SEM, TEM, confocal and optical microscopy which have shown the layers may be fully amorphous, or (nano)crystalline. Hardness testing reveals that high hardness values are attainable for the layers ( 700 HV). Shear banding is found to be initiated during indentation testing. The processing of laser remelted layers developed from initial cladding has been analyzed and parameters are outlined which govern layer thickness, track width and ultimately the microstructural appearance of the layers.

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Matthews DTA, Ocelík V, De Hosson JTM. Microstructural and tribological observations in metallic glass forming alloy layers produced by high-power lasers. In De Hosson JTM, Brebbia CA, Nishida SI, editors, Computer Methods and Experimental Measurements for Surface Effects and Contact Mechanics VIII. WIT Press. 2007. p. 33-42. (WIT Transactions on Engineering Sciences). doi: 10.2495/SECM070041

Microstructural and tribological observations in metallic glass forming alloy layers produced by high-power lasers

Abstract

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Keywords

UN SDGs

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