The effect of microstructure anisotropy on low temperature fracture of ultrafine-grained iron

• Autorzy: Romelczyk-Baishya B. , Łęczycki K. , Płocińska M. , Kulczyk M. , Molak R. , Pakieła Z.

Identyfikatory

DOI

10.1016/j.acme.2018.02.014

• Języki publikacji: EN

Abstrakty

EN

This papers deals with the character on low (−180 °C) temperature fracture of iron. Microcrystalline and ultrafine-grained (UFG) iron rods were investigated. To obtain UFG material 20 mm in diameter iron rod was hydrostatically extruded (HE) in two steps: from 20 to 12 mm and from 12 to 8 mm. Because of microstructure anisotropy caused by HE mini-disc and mini-beam samples were cut off from perpendicular and longitudinal cross-section of the rods. Microcrystalline rod fractured in brittle manner at low temperature for both cross-sections, but in UFG iron fracture character depended on grain's shape. For samples were crack propagates parallel to the grain's elongation axis intercrystalline fracture occurred. For mini-beams were crack propagates crosswise to the grain elongation axis transcrystalline fracture occurred and force deflection curve was similar to those obtained for room temperature.

Słowa kluczowe

EN

iron; nanomaterial; fracture; low temperature; small punch test

PL

żelazo; nanomateriał; pęknięcie; niska temperatura

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2018
• Tom: Vol. 18, no. 4
• Strony: 1166--1182
• Opis fizyczny: Bibliogr. 31 poz., rys., tab., wykr.

Twórcy

autor

Romelczyk-Baishya B.

• Warsaw University of Technology, Faculty of Materials Science and Engineering, 141 Woloska St., 02-507 Warsaw, Poland

autor

Łęczycki K.

• Warsaw University of Technology, Faculty of Materials Science and Engineering, 141 Woloska St., 02-507 Warsaw, Poland

autor

Płocińska M.

• Warsaw University of Technology, Faculty of Materials Science and Engineering, 141 Woloska St., 02-507 Warsaw, Poland

autor

Kulczyk M.

• Institute of High Pressure Physics, Polish Academy of Sciences, 29/37 Sokolowska St., 01-142 Warsaw, Poland

autor

Molak R.

• Warsaw University of Technology, Faculty of Materials Science and Engineering, 141 Woloska St., 02-507 Warsaw, Poland

autor

Pakieła Z.

• Warsaw University of Technology, Faculty of Materials Science and Engineering, 141 Woloska St., 02-507 Warsaw, Poland

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019)