Proper coating selection for improved galling performance of forming tool steel
Podgornik, Bojan (Author), Hogmark, Sture (Author), Sandberg, O. (Author)

URLURL - Presentation file, Visit http://dx.doi.org/10.1016/j.wear.2005.09.005 This link opens in a new window

The aim of the present work was to investigate and compare different hard coatings as to the tendency for work material adhesion and galling properties when applied on forming tool steel and sliding against different work materials. The surface coatings included were PVD deposited TiN, TiB2, VN, TaCand DLC coatings. They were all applied to cold work tool steel. Tribological evaluation was carried out in a load-scanning test rig, with the normal load being gradually increased during each test from 100 to 1300 N (1-3.5 GPa). The coated steel was tested against austenitic stainless steel and alloys of aluminium and titanium. This investigation clearly indicates that work material adhesion and galling performance of coated forming tool steel greatly depends on the type of work material. In the case of stainless steel, carbon-based coatings provide the best protection against the work material transfer, while forming of aluminium and titanium alloys, requires nitride type coatings, such as TiN.

Keywords:forming, galling, friction, PVD coating
Work type:Not categorized (r6)
Tipology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Number of pages:str. 15-21
Numbering:Letn. 261, št. 1
ISSN on article:0043-1648
COBISS.SI-ID:9331739 Link is opened in a new window
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Record is a part of a journal

Shortened title:Wear
COBISS.SI-ID:5374213 This link opens in a new window

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