Improving the creep formability of aluminum-lithium alloys through laser shock peening
Source abstract
Abstract
This work reports a method to achieve high creep strain and enhance creep formability in Al-Li alloys by forming a specific microstructure through laser shock peening (LSP). Notably, the Al-Li alloy with this specific microstructure exhibits a significantly increased creep strain, outperforming similar alloys (≈2 times). The remarkable improvement in creep strain is attributed to the enhanced diffusion and grain boundary sliding induced by vacancy clusters and a heterogeneous grain structure within the Al-Li alloy. Our research paves a new avenue for improving the creep formability, filling a research gap regarding the microstructure and creep mechanisms following ultra-high strain rate deformation. Vacancy clusters and heterogeneous grains significantly enhance the creep strain of Al-Li alloys, enabling the achievement of the same forming objectives at lower stresses and temperatures. This results in superior creep formability compared to Al-Li alloys subjected to conventional treatment processes.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Surface Treatment and Residual Stress · Aluminum Alloy Microstructure Properties · Aluminum Alloys Composites Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (26)
Show source-provided references
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