Stainless martensitic precipitation hardening stainless steel PH 4-17 from low carbon alloys containing 5.3 wt% copperDistributed by rich deposits of copper in the field of martensitic hardening capabilities. In this study, to evaluate the microstructure, hardness, abrasion, corrosion, abrasion and corrosion behavior of stainless steel PH 4-17 after the application process has been friction stirFor this purpose, the friction stir process uses a non-consumable tool includes a pin and shoulder, shoulder diameter of 20 mm and pin as a truncated cone with a height of 1 mm, with 700 and 1000 rpm rotational speed and forward speed 40 and 60 mm per minute. Done. Microstructural studies were done using light microscopy and scanning electron microscopy. Hardness profiles operations using Vickers micro-hardness was studied Reciprocating wear test load of 45 Newton force was measured. The corrosion resistance of the base metal and processed samples using potentiostatic polarization potential of Open and dynamic assessment; and to ensure the accuracy of electrochemical corrosion tests, immersion test duration was 240 hours. It also studies the wear caused by abrasion, corrosion process, by scanning electron microscopy, failure mechanisms in base metal and processed samples, respectively scratch and scratch and abrasion wear was detected exfoliation
