Abstract
An equal-molar CoCrFeMnNi, face-centered-cubic high-entropy alloy system and a face-centered-cubic stainless steel described as a medium-entropy system, are measured by in situ neutron-diffraction experiments subjected to continuous tension at room and several elevated temperatures, respectively. With spallation neutron, the evolution of multiple diffraction peaks is collected simultaneously for lattice-elasticity study. Temperature variation of elastic stiffness of a single face-centered-cubic-phase Ni and a single face-centered-cubic-phase Fe are compared as low-entropy metals. The CoCrFeMnNi high-entropy alloy shows distinct lattice anisotropy.
| Original language | English |
|---|---|
| Pages (from-to) | 32-35 |
| Number of pages | 4 |
| Journal | Scripta Materialia |
| Volume | 101 |
| DOIs | |
| State | Published - May 1 2015 |
| Externally published | Yes |
Funding
EWH appreciates the support from Ministry of Science and Technology (MOST) – Taiwan Program 101-2221-E-008-039-MY3 and Atomic Energy Council (AEC) Program 10309037L. Research conducted at ORNL’s Spallation Neutron Source was sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy . EWH and his group members very much appreciate the financial support from the National Synchrotron Radiation Research Center (NSRRC) Neutron Program, with Dr. Jason Gardner as NSRRC-Neutron-Program Director.
| Funders | Funder number |
|---|---|
| Office of Basic Energy Sciences | |
| Scientific User Facilities Division | |
| U.S. Department of Energy | |
| Atomic Energy Council | 10309037L |
| Ministerio de Ciencia y Tecnología | 101-2221-E-008-039-MY3 |
| National Synchrotron Radiation Research Center |
Keywords
- Elastic behavior
- High entropy alloy
- Metal and alloys
- Microstructure
- Neutron diffraction