Nanoindentation response of laser shock peened Ti-based bulk metallic glass
Source abstract
Abstract
The effect of laser shock peening (LSP) on mechanical properties of Ti-based bulk metallic glass (BMG) was investigated under nanoindentation. Two regions were generated within the specimen after the LSP: (I) the extremely thick softened region (∼300 µm) in which amounts of shear bands and excess free volume were generated; (II) the middle region where the free volume increased but nearly no shear bands were induced. The hardness decreased with the increase of the indenter depth (h), exhibiting indentation size effect (ISE). The ISE increased with the increase of the measured distance away from the laser shocked tip, indicating that the ISE was inhibited by the shear bands and excess free volume was generated by the LSP.
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Research context
OpenAlex topics: Metallic Glasses and Amorphous Alloys · Laser Material Processing Techniques · High Entropy Alloys Studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Materials Science and Engineering, Beijing Institute of Technology 1 , Beijing 100081, China
National Key Laboratory of Science and Technology on Materials under Shock and Impact 2 , Beijing 100081, China
Chinese Academy of Sciences 3 Shenyang National Laboratory for Materials Science, Institute of Metal Research, , Shenyang 110016, China
Funding
Beijing Higher Education Young Elite Teacher Project · The program of "One Hundred Talented People" of the Chinese Academy of Sciences · National Natural Science Foundation of China
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