PSI - Issue 47

10

Abdullah Al-Ibrahim et al. / Procedia Structural Integrity 47 (2023) 426–436 Abdullah Al-Ibrahim/ Structural Integrity Procedia 00 (2023) 000–000

435

Figure 14 Digital Microscope image of S39

Figure 15 Digital Microscope image of S39-A By comparing all the samples of a contact load 1400N, P110, and L80 will have a deep grove of abrasive wear under combined sliding and rotational. However, SM2535-110 will have abrasive smooth groves when sliding and rotational are combined, and the deep groves appear under rotational only. It can be found for P110 and SM2535 110 samples that adhesive wear has not appeared when the two loads are combined. From all grades, solid particles of lubricant have been found. By comparing samples of contact load 1000N, it can be found for all casing grades the dominant mechanism is circumferential abrasive wear. The axial abrasive was found on all samples under combined sliding and rotational, and the circumferential and axial abrasive wear has deep grooves. In SM2535-110 delamination has been found in samples surface with adhesive wear. By comparing all samples with their estimated wear volume, the least wear volume can be achieved when the contact load is 1000N under rotation only in P110 and L80. Moreover, it can be found the major machines will be