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Tensile properties of commercially pure, high-purity and ultra-high-purity iron: Results of an international round-robin

  • The room temperature tensile properties of iron with different purity levels (commercially pure, high-purity, and ultra-high-purity) were characterized at different strain rates in the framework of an international Round-Robin involving four laboratories (BAM, IMR-TU, NIST, and SCK•CEN). The test results were collected and analyzed by NIST, and are presented in this Technical Note. Data from all the participating laboratories were found in good agreement, thus allowing a clear assessment of the influence of strain rate and purity level on tensile properties (mechanical resistance and ductility). A clear increase of yield strength and, to a lesser extent, tensile strength was observed for all materials as strain rate increases and purity level decreases. The highest strain rate sensitivity was associated with the highest purity level (ultra-high-purity Fe). Ductility trends were less unequivocal, but typically an increase of elongation at fracture and reduction of area was detected asThe room temperature tensile properties of iron with different purity levels (commercially pure, high-purity, and ultra-high-purity) were characterized at different strain rates in the framework of an international Round-Robin involving four laboratories (BAM, IMR-TU, NIST, and SCK•CEN). The test results were collected and analyzed by NIST, and are presented in this Technical Note. Data from all the participating laboratories were found in good agreement, thus allowing a clear assessment of the influence of strain rate and purity level on tensile properties (mechanical resistance and ductility). A clear increase of yield strength and, to a lesser extent, tensile strength was observed for all materials as strain rate increases and purity level decreases. The highest strain rate sensitivity was associated with the highest purity level (ultra-high-purity Fe). Ductility trends were less unequivocal, but typically an increase of elongation at fracture and reduction of area was detected as strain rate and purity level increase. Significant differences in tensile properties were observed between the two investigated types of high-purity Fe, which can be attributed to an influence of the production process in terms of melting environment (atmosphere and crucible), as well as differences in chemical compositions.zeige mehrzeige weniger

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Metadaten
Autor*innen:E. Lucon, K. Abiko, M. Lambrecht, Birgit Rehmer
Dokumenttyp:Sonstiges
Veröffentlichungsform:Graue Literatur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):NIST Technical note 1879
Jahr der Erstveröffentlichung:2015
Herausgeber (Institution):National Institute of Standards and Technology (NIST)
Erste Seite:1
Letzte Seite:36
Freie Schlagwörter:Commercially pure iron; Ductility; High-purity iron; Pure iron; Purity level; Round-Robin; Strain rate; Tensile properties; Tensile strength; Ultra-high-purity iron; Yield strength
DOI:10.6028/NIST.TN.1879
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:20.02.2016
Referierte Publikation:Nein
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