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immediate downloadReleased: 2022-05-18
ISO 4821:2022
ISO 4821:2022 - Plain bearings — Dynamic adhesion test method for DLC coated parts under lubricated condition
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| Standard´s number: | ISO 4821:2022 |
| Edition: | 1 |
| Released: | 2022-05-18 |
| Pages (English): | 13 |
DESCRIPTION
ISO 4821:2022
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.