Investigations on friction stir composite processing and picosecond laser-induced surface modification on mechanical properties of β-titanium alloy

Wang, Di; Du, Dafan; Dong, Anping; Li, Jiuxiao; Toursangsaraki, Maziar; Sun, Hongfei

doi:10.1016/j.mtcomm.2024.108041

Cited by 1 publication

(1 citation statement)

References 29 publications

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“…The depth of the penetration of the tool pin [16] into the work-piece is maintained, so as to ensure the appropriate contact between the work-piece surface and the tool shoulder. Friction stir processing is becoming a popular manufacturing process for surface modification with enhancements in mechanical properties [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Multi-Pass Friction Stir Processing on the Microstructure Evolution and Mechanical Properties of IS2062 Steel

Raja,

Su,

2024

Metals

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The motive of present work is to explore the variation in the material characteristics of steel upon multi-pass friction stir processing. Steel plates (IS2062) that were 3 mm thick, were subjected to friction stir processing in a multi-pass manner. The selected transverse speed was 150 mm/min, along with a tool rotation of 800 RPM when using a tungsten carbide tool (shoulder diameter—10 mm). Steel plates were processed using the single-pass, double-pass, and triple-pass travel of the rotating tool to observe the impact of multi-pass processing on the properties of steel plates. Multi-pass friction stir processing resulted in a higher micro-hardness of 175 VHN after the second pass, in comparison to the unprocessed metal, which had a micro-hardness of 130 VHN, owing to the collective effect of the plastic flow of the material due to the rotation of the tool and frictional heat, which also leads to grain refinement. The second pass evidenced an average grain size of 22 microns, whereas the unprocessed material had an average grain size of 57 microns. The results of EBSD and SEM characterization showed reasonably improved material properties of the processed work materials.

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