| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Ultrafine-grained and Heterostructured Materials (UFGH XI)
|
| Presentation Title |
N-34: Measurement of Strain Effects on Electrical Conductivity and Wear Properties in Materials Processed by High Pressure Torsion |
| Author(s) |
Evander Ramos, Takahiro Masuda, Sina Shahrezaei, Zenji Horita, Suveen Mathaudhu |
| On-Site Speaker (Planned) |
Evander Ramos |
| Abstract Scope |
It is well-documented that high-pressure torsion (HPT) can create heterogeneous microstructures depending on the amount of shear strain imparted. This strain-based inhomogeneity has not been adequately accounted for in many works reporting electrical conductivity of materials processed by HPT. Conversely, when it comes to wear properties in HPT materials, research has mostly focused on pin-on-disc tests that elucidate behavior only at discrete levels of strain. In this work, HPT-processed discs were cut in a spiral pattern to obtain a uniform cross section with monotonically increasing strain, thereby enabling a more precise study of electrical properties throughout the sample. Additionally, linear reciprocating wear tests were conducted in regions of varying strain and compared to literature to assess any differences from continuous wear tests. Thus, this work provides a framework to better understand the variation of electrical and wear properties as a function of strain in HPT-processed materials. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume; Planned: Supplemental Proceedings volume |