Impact response of pure iron between 150 and 1273 K

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Abstract

Dynamic yield strength of pure polycrystalline iron (99.995% Fe) was studied in a series of VISAR-monitored planar impact experiments with initial sample temperature ranged from 150 to 1273 K. It was found that decaying with temperature yield strength of α-iron has two local maxima; the first one in the vicinity of the iron Curie point, 1030 K, and the second one just below the temperature of the α-γ transition in iron, 1180 K. It was also found that both the pressure and the volume effect of the shock-induced α-ε transformation (revealed by the two-wave structure of the recorded waveforms) decrease with the test temperature achieving their minima in the vicinity of the α-γ transition. Heating of the iron above the temperature of the α-γ transformation is accompanied by the increase of both the transition pressure and its volume effect.

Original languageEnglish
Title of host publicationShock Compression of Condensed Matter - 2009 - Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter
Pages1201-1204
Number of pages4
DOIs
StatePublished - 1 Dec 2009
EventConference of the American Physical Society Topical Group on Shock Compression of Condensed Matter, 2009 APS SCCM - Nashville, TN, United States
Duration: 28 Jun 20093 Jul 2009

Publication series

NameAIP Conference Proceedings
Volume1195
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceConference of the American Physical Society Topical Group on Shock Compression of Condensed Matter, 2009 APS SCCM
Country/TerritoryUnited States
CityNashville, TN
Period28/06/093/07/09

Keywords

  • Iron
  • Phase transitions
  • Plasticity
  • Temperature

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Plant Science
  • Physics and Astronomy (all)
  • Nature and Landscape Conservation

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