Laser shock peening modified surface texturing, microstructure and mechanical properties of graphene dispersion strengthened aluminium nanocomposites
Source abstract
Abstract
Abstract The present work has important implications for the use of graphene as reinforcement and interlocking the grains in nanocomposites. In order to achieve this, low energy laser shock peening (LSP) assessed on graphene (0.4 wt %)-AA 7075 nanocomposites fabricated through powder metallurgy (PM) technique and hot extrusion (28:1 extrusion ratio). As a consequence, substantial improvement in microstructure observed for the nanocomposites up to 400 µm depth. The added graphene serves the pinning effect and blocks the grain growth in the nanocomposites. LSP contribute the additional grain refinement effectively along interlocking the grains by graphene called pinned dislocation core in the nanocomposites leading to large deformation texture strengthening. Addition of graphene found to have improved in the ultimate tensile strength (UTS) by 42.93%, LSP has contributed 10.66%.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Surface Treatment and Residual Stress · Diamond and Carbon-based Materials Research · Aluminum Alloys Composites Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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