Analysis of surface and subsurface layers after shot peening of various aluminium alloys
Žagar, Sebastjan (Author), Grum, Janez (Author)

URLURL - Presentation file, Visit http://dx.doi.org/10.4028/www.scientific.net/AMR.89-91.53 This link opens in a new window

In the paper two aluminium alloys, i.e. 6082 and 7075, which were cold hardened by shot peening under different conditions, are treated. Surface hardening was carried out with S170 steel shot of the same diameter, particle hardness being 56 HRC. Other conditions were the operating pressure, mass flow, which provide different Almen intensities. The hardened layer was described by surface integrity. Macroscopic and microscopic analyses consisted in analyses of hardened profiles of hardness, and residual stresses in the thin surface layer. Research results indicated that there were significant differences among the characteristics chosen to describe surface integrity and that they had an important influence on the final condition of the surface layer. With too severe settings of the peening parameters, the surface properties got worse because of damages, which resulted in crack initiation and growth of the existing cracks.

Keywords:obdelovanje površin, hladno utrjevanje, mikrotrdota, hladno obdelovanje, shot peening, surface roughness, residual stresses
Work type:Not categorized (r6)
Tipology:1.08 - Published Scientific Conference Contribution
Organization:FS - Faculty of Mechanical Engineering
Number of pages:Str. 53-58
ISSN on article:1662-8985
COBISS.SI-ID:11258395 Link is opened in a new window
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Record is a part of a proceedings

Title:Thermec 2009 supplement
COBISS.SI-ID:11257883 This link opens in a new window

Record is a part of a journal

Title:Advanced materials research
Shortened title:Adv. mat. res.
Publisher:Trans Tech Publications
COBISS.SI-ID:11257371 This link opens in a new window

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