An investigation of grain-boundary phase in Fe-30Mn-6Si-5Cr shape memory alloy
Journal
Journal of Alloys and Compounds
Journal Volume
319
Journal Issue
1-2
Pages
283-289
Date Issued
2001
Author(s)
Abstract
The formation of the grain-boundary phase in the Fe-30Mn-6Si-5Cr shape memory alloy and how it affected the shape memory effect were investigated. The grain-boundary phase in the Fe-30Mn-6Si-5Cr shape memory alloy formed during annealing at temperatures ranging from 600 to 750°C, especially at 700°C. Conversely, the grain-boundary phase was not observed at annealing temperatures exceeding 800°C or lower than 550°C. The grain-boundary phase exhibited an ordered BCC structure with a lattice parameter of about 8.798 Å, and had a similar chemical composition as that of the matrix. The shape memory effect and tensile property of the Fe-30Mn-6Si-5Cr alloy monotonously degraded with increasing density of the grain-boundary phase. © 2001 Elsevier Science B.V. All rights reserved.
Type
journal article