Abstract
Positron annihilation, electron microscopy, and optical profilometry studies of steel 304 AISI exposed to blasting with different size of abradant, i.e., alumina and glass have been reported. The size of abradant particles has a direct impact on the roughness which changed from 0.7 μm to about 5 μm. Positron lifetime measurements revealed the existence of defects associated with the dislocations in samples processed with a smaller medium. In the case of blasting with aluminum oxide particles with a diameter of 250 μm, monovacancies were detected in processed specimens. The defect concentration induced by blasting decreases with the increase of the depth from the surface, and it depends on the abradant particles’ size.
Highlights
INTRODUCTIONThe abrasive particles in the stream of compressed air leave the nozzle and hit material interacting with a surface
BLASTING is a surface treatment process (STP)useful in a wide spectrum of applications
The impact of the particle size on the subsurface zone in blasted 304 AISI steel observed by Positron annihilation spectroscopy (PAS) and complementary methods is reported
Summary
The abrasive particles in the stream of compressed air leave the nozzle and hit material interacting with a surface This process is often applied in the cleaning of industrial objects such as boat hulls, bridges, parts of machines, and cars to remove corrosion and achieve expected roughness of denture at the preliminary stage. The impact of the particle size on the subsurface zone in blasted 304 AISI steel observed by PAS and complementary methods is reported. This is the continuation of our previous works related to the influence of blasting angle on the properties of subsurface zone in the same kind of material.[4]. More details on the experimental setup were given in Reference 10
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
