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>ISO Standards>ISO 4821:2022-Plain bearings — Dynamic adhesion test method for DLC coated parts under lubricated condition
immediate downloadReleased: 2022
ISO 4821:2022-Plain bearings — Dynamic adhesion test method for DLC coated parts under lubricated condition

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
Pages:13
Edition:1
Released:2022
Language:English
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.
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