We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Dynamic quantitative deformation mapping of slip activities in NBSC superalloy using sampling moiré method
Summary
Researchers used the Sampling Moiré Method (SMM) to dynamically measure deformation fields of slip activities in Nickel-Based Single-Crystal superalloy during in-situ tensile testing, capturing nanometer-scale displacement fields and quantifying slip band evolution with both high spatial and temporal resolution.
Quantitative assessment of microscale slip activities and plastic localizations is essential for understanding the complex deformation mechanisms in crystalline materials. However, few experimental studies have been able to dynamically measure the deformation fields of rapidly evolving slip activities at the microscale. In this study, we used the Sampling Moiré Method (SMM) to directly measure the dynamic deformation fields of slip activities in Nickel-Based Single-Crystal (NBSC) superalloy under in-situ tensile test, and the strain and displacement fields under the evolving microplastic events with intense slip activities around the notch of the NBSC superalloy specimen were obtained for the first time. The dynamic evolution of slip bands was quantitatively characterized through detailed statistical analysis of strains and displacements under different loads. The locations of the initial appearance of slip traces were successfully predicted by the regions of plasticity localization. The results show that the deformation fields exhibit both high spatial and temporal resolutions, enabling the capture of nanometer-scale displacement fields and visualization of the dynamic fluidity of slip accumulation. This method demonstrates the superiority of the dynamic characterization of the plastic deformation field at the microscale and the promise of its application for characterizing the slip activities of various crystalline metals.
Sign in to start a discussion.
More Papers Like This
Slip localization and grain boundary sliding analysis at sub-voxel resolution using phase contrast tomography
Researchers used phase contrast tomography and laser confocal microscopy to analyze microplasticity events—slip, twinning, grain boundary sliding—on the surface of a nickel-based superalloy at room temperature and 650°C. Despite slip amplitudes smaller than the imaging voxel size, the technique successfully resolved out-of-plane kinematics, demonstrating its value for studying sub-voxel deformation.
Dislocation Arrangements and Cyclic Microplasticity Surrounding Stress Concentration in a Ni‐Based Single‐Crystal Superalloy
Not relevant to microplastics — this materials science study examines dislocation behavior and fatigue crack initiation in nickel-based single-crystal superalloys; 'microplasticity' here refers to microscale metal deformation, not plastic particles.
Lattice Rotation and Deformation Mechanisms under Tensile Loading in a Single-Crystal Superalloy with [001] Misorientation
This study investigated how small deviations from the [001] crystal orientation affect the tensile properties and deformation mechanisms of a nickel-based single-crystal superalloy at room temperature, finding that misorientation significantly influences lattice rotation and fracture behavior.
Strain localization in the Alloy 718 Ni-based superalloy: From room temperature to 650 °C
This study investigates how a nickel-based superalloy deforms at different temperatures using high-resolution imaging techniques. The paper is not related to microplastics or human health. It focuses on the mechanical behavior of metal alloys used in engineering applications, examining how strain localizes in the material's internal structure at temperatures up to 650 degrees Celsius.
Effects of Ultra-Low Temperatures on the Mechanical Properties and Microstructure Evolution of a Ni-Co-Based Superalloy Thin Sheet during Micro-Tensile Deformation
This materials science paper examines how ultra-low temperatures affect the mechanical properties and microstructure of a nickel-cobalt superalloy used in aerospace and nuclear applications. The study is focused on extreme-condition materials performance and is unrelated to microplastic research.