Multiscale Material Characterization Based on Single Particle Impact Utilizing Particle-Oriented Peening and...

Area of Science:

• Materials Science
• Mechanical Engineering
• Surface Engineering

Background:

• Conventional material development is time-consuming, costly, and experience-based.
• New methods are needed for efficient material development and characterization.
• Particle-oriented peening offers a novel approach to material analysis.

Purpose of the Study:

• To investigate the transferability of material property data from microscopic to macroscopic samples.
• To compare particle-oriented peening with single-impact peening for cross-scale analysis.
• To establish a predictive method for material behavior using small-scale samples.

Main Methods:

• Utilized particle-oriented peening on microscopic samples (d = 0.8 mm) of 100Cr6 (AISI 52100) in five states.
• Employed single-impact peening for macroscopic sample deformation.
• Analyzed plastic deformation (∆l, r_f, r_c) and particle velocities post-impact.

Main Results:

• Demonstrated comparable dynamic material behavior across different sample dimensions.
• Successfully correlated micro-scale peening data with macro-scale material responses.
• Validated the use of particle velocities as indicators of elasto-plastic properties.

Conclusions:

• Particle-oriented peening is a viable method for characterizing material behavior at micro and macro scales.
• This technique facilitates accurate prediction of material properties for new and unknown materials.
• Accelerated material development is achievable through rapid analysis of small samples.