About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Characterization Techniques for Quantifying and Modeling Deformation
|
Presentation Title |
The Effect of Hydrogen on Strain Gradient Hardening of Ni |
Author(s) |
Lai Jiang, Michael J Demkowicz |
On-Site Speaker (Planned) |
Lai Jiang |
Abstract Scope |
We carried out an experimental investigation on the effect of hydrogen (H) on strain gradient hardening of pure Ni. Our approach relies on high fidelity characterization of residual curvature in microbend experiments carried out on foils electrochemically charged with H. To that end, we developed a technique for computational analysis of high-resolution optical micrographs. Combining our results with tensile yield strength and hardening coefficients obtained from micro-tensile tests enables us to determine the effect of H on the characteristic plasticity length scale of pure Ni. The implications of our findings for understanding of H embrittlement will be discussed. |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, Copper / Nickel / Cobalt, Mechanical Properties |