Elevated Temperature Fretting Facility
Abstract
The primary equipment purchased is a Phoenix Tribology Ltd. DN55 High Temperature Sliding and Fretting Machine. The machine was designed from the ground up specifically for high temperature (up to 8OOoC) fretting experiments. The system has lower mass actuator system which is ideal for fretting and reciprocal sliding experiments to enable cycling at higher frequencies (up to 500 Hz) while minimizing dynamic effects. The system can also perform reciprocating sliding with maximum stroke of 20 mm at 5 Hz, allowing fretting wear experiments to be also conducted. The motivation for obtaining the new equipment is to further validate and understand microstructural changes occurring during fretting of gas turbine engine alloys, primarily Ti and Ni-base alloys. These projects are aimed at improving reliability of attachments between components through improving the physics basis of the fatigue life prediction modeling as well as developing new tools to assess the influence of material microstructure on resistance to crack formation. The end goal is improved reliability of DoD mission-critical components and reduction in maintenance costs.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 2004
- Accession Number
- ADA425040
Entities
People
- Richard W. Neu
Organizations
- Georgia Tech