English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Model of coating wear degradation in precision glass molding

Klocke, F., Dambon, O., Rohwerder, M., Bernhardt, F., Friedrichs, M., & Merzlikin, S. V. (2016). Model of coating wear degradation in precision glass molding. International Journal of Advanced Manufacturing Technology, 87(1-4), 43-49. doi:10.1007/s00170-015-8005-2.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-E368-E Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-E375-0
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Klocke, Fritz1, Author              
Dambon, Olaf2, Author              
Rohwerder, Michael3, Author              
Bernhardt, Frank2, Author              
Friedrichs, Marcel1, Author              
Merzlikin, Sergiy Vasil´ović3, Author              
Affiliations:
1Fraunhofer Institute for Production Technology (IPT), Steinbachstrasse 17, 52074 Aachen, Germany, ou_persistent22              
2Fraunhofer Institute for Production Technology IPT, Steinbachstraße 17, Aachen, Germany, ou_persistent22              
3Corrosion, Interface Chemistry and Surface Engineering, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_2074315              

Content

show
hide
Free keywords: Heating tests; Precision glass molding (PGM); Protective coatings; Selective oxidation; SEM/EDX; Wear mechanism; XPS
 Abstract: Coatings in precision glass molding (PGM) experience severe thermo-chemical and thermo-mechanical loads during several hundred or thousand pressing cycles. Until now, little is known about the integrity loss of protective coatings for these applications. Gaining knowledge of fundamental mechanisms on the functional degradation of protective coatings is of great interest. The work presented in this paper investigates compositional changes in the surface-near region of precious metal PVD-coatings after being annealed in hot glass contact. Different characteristic wear zones identified on the samples have been analyzed by light microscopy, SEM/EDX, as well as X-ray photoelectron spectroscopy (XPS). The results are compared to the wear stages observed on molds used in industrial production. A qualitative model for the degradation of the substrate-coating system is proposed, ranging from the initial phases of material alteration to the final coating breakdown. In addition, indications that glass components might play a role in the overall degradation process were found but could not be revealed in detail. With regards to highly precise molding tools for PGM, further work should be focused on the initial phase of wear, since the end of service life time is reached at early degradation stages, far before the coating flake-off.

Details

show
hide
Language(s): eng - English
 Dates: 2016-10
 Publication Status: Published in print
 Pages: 7
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: ISI: 000386383100006
DOI: 10.1007/s00170-015-8005-2
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: International Journal of Advanced Manufacturing Technology
  Abbreviation : Int. J. Adv. Manuf. Technol.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: 236 GRAYS INN RD, 6TH FLOOR, LONDON WC1X 8HL, ENGLAND : SPRINGER LONDON LTD
Pages: - Volume / Issue: 87 (1-4) Sequence Number: - Start / End Page: 43 - 49 Identifier: ISSN: 0268-3768
CoNE: /journals/resource/0268-3768