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Mechanical and microstructural investigation of dual phase stainless steel (LDX2101) under a wide range of strain rates
conference contribution
posted on 2017-01-01, 00:00 authored by Ali Ameri, Juan Escobedo-Diaz, Mahmud AshrafMahmud Ashraf, Andrew Brown, Paul Hazell, Hutchison Wayne, Zakaria QuadirThe mechanical response and the microstructural evolution of lean duplex stainless steel 2101 (LDSS 2101) under a wide range of strain rates has been investigated. Experimental testing spanned from quasistatic, high strain-rate (Split Hopkinson Pressure Bar) and shock loading. The microstructural changes, e.g. phase transformation and grain rotation, texture and substructure evolution, were investigated by optical microscopy, X-ray diffraction (XRD) and electron-backscattered diffraction (EBSD). A significant increase in the yield stress with increasing strain rate was observed. The plastic deformation, e.g. work hardening rate, was also depended on the strain-rate. The threshold stress for the iron-epsilon phase transformation was obtained from free surface velocity measurements and the retained high pressure phase was assessed by XRD measurements.
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Event
American Physical Society. Conference (20th : 2017 : St. Louis, Mo.)Series
American Physical Society ConferencePublisher
American Physical SocietyLocation
St. Louis, Mo.Place of publication
College Park, Md.Start date
2017-07-09End date
2017-07-14Language
engPublication classification
E1.1 Full written paper - refereedEditor/Contributor(s)
[Unknown]Title of proceedings
Proceedings of the 20th Biennial Conference of the APS Topical Group on Shock Compression of Condensed MatterUsage metrics
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