PSI - Issue 47

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Abdullah Al-Ibrahim et al. / Procedia Structural Integrity 47 (2023) 426–436 Author name / Structural Integrity Procedia 00 (2019) 000–000

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S1, S1-A, S3, and S3-A which are P110 casing grades have been examined and obtained their microstructure images as it can be shown in Figures (4), (5), (6), and (7) respectively. It can be observed that dominant wear is the abrasive wear and solid particles from the lubricant have appeared on all of the samples. By comparing S1, and S1-A where the applied load for both samples is 1400N, it can be found under combined rotational and sliding adhesive wear has not appeared and the circumferential and axial abrasive has been created on the worn surface. In a comparison of S3, and S3-A where the contact load is 1000N, there is a major difference observed compared to S1 and S1-A where the abrasive wear has deeper grooves and observed axial abrasive wear under combined sliding and rotational.

Figure 4 SEM Image of S1

Figure 5 SEM Image of S1-A