BS ISO 4821:2022
Plain bearings. Dynamic adhesion test method for DLC coated parts under lubricated condition

Standard No.

BS ISO 4821:2022

Release Date

2022

Published By

British Standards Institution (BSI)

Latest

BS ISO 4821:2022

Scope

1   Scope This document specifies a procedure to measure the adhesion strength of diamond-like carbon (DLC) coatings specified in ISO 20523 by detecting acoustic emission signals using ball-on-disk method under the lubricated condition. DLC is normally coated on metal or ceramic. The test results are not applicable when the DLC coated parts operate in an unlubricated environment.

BS ISO 4821:2022 history

• 2022 BS ISO 4821:2022 Plain bearings. Dynamic adhesion test method for DLC coated parts under lubricated condition