[Retracted] Investigation of Tribological Behaviour on DLC Coatings for AA5051 using DC Sputtering

Table 2

Ultimate loads where coatings peeled off the substrate during the scratch test.

Sample	1	2	3	4	5	6	7	8
Load (μN)	35.2	35.3	35.2	35.1	35.2	35.2	35.1	35.2