A novel copper surface modification approach based on pinless friction stir surface processing technique with ultra-low heat input
Source abstract
Abstract
Improving the wear and corrosion performances of widely employed copper and its alloy components can effectively extend their service life. In this study, a novel copper surface modification method based on the friction stir surface processing (FSSP) technique was achieved. Subject to FSSP with pinless tool and low heat-input process parameters (including a minimal axis tilt and extremely low rotational speed), the modified copper surface exhibited enhancement rates of 34.25 % in hardness and 44.76 % in tensile strength , and improved high wear and corrosion resistance characteristics. The research suggests that the primary reasons for the enhanced surface properties are the grain refinement strengthening effect and the rapid formation of a passive film. Additionally, the ultra-low heat input resulted in the preservation of numerous dislocation tangles and incomplete dynamic recrystallization in the modified region, which represented a microstructural evolution mechanism distinct from the traditional friction stir processing. This work provides a reference for a low-energy-consumption and easily achievable approach for enhancing the surface properties of metals.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Aluminum Alloys Composites Properties · Advanced Welding Techniques Analysis · Electrical Contact Performance and Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (34)
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