Summary of Gleeble-based, High Temperature Deformation Study on AF9628 Steel
Abstract
A study of the high temperature deformation behavior of steel alloy, AF9628, was carried out using the Gleeble 3500 Universal Testing machine. Flow stress data as a function of temperature (900-1175C) and true strain rate (from 0.1s-1 to 50s-1) for true strains up to 0.5 were collected. This data was used to document the strain sensitivity of this alloy as a function of temperature. It was then used subsequently to develop a deformation processing map which can be used to develop deformation processing schedules, especially rolling reduction schedules, to avoid material failure during thermomechanical processing. The deformation processing diagram was used to develop potential rolling schedule which were then simulated using the Gleeble 3500. Samples were processed on the Gleeble to simulate 2:1, 3:1 and 8:1 reductions in thickness of a rolling process. The samples were section and studied via optical metallography. Failure of the material was not observed in these samples and it was concluded that the steel could be processed relatively easily between temperatures of 950-1050C and true strain rates of less than about 10s-1.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 09, 2019
- Accession Number
- AD1080331
Entities
People
- J. A. Simpson
- J. K. Walleser
- T. M. Lillo
Organizations
- Idaho National Laboratory