Formation of an (α+θ) microduplex structure without thermomechanical processing in superplastic ultrahigh carbon steels

K. Tsuzaki; E. Sato; S. Furimoto; Tadashi Furuhara; T. Maki

doi:10.1016/S1359-6462(98)00486-2

Formation of an (α+θ) microduplex structure without thermomechanical processing in superplastic ultrahigh carbon steels

K. Tsuzaki, E. Sato, S. Furimoto, Tadashi Furuhara, T. Maki

Research output: Contribution to journal › Article › peer-review

55 Citations (Scopus)

Abstract

The effects of alloying elements and heat treatments on the formation of microduplex structure in ultrahigh carbon steels were investigated. A fully pearlitic structure without coarse pro-eutectoid θ particles was obtained by the addition of 2 mass% Al. The microduplex structure consisted of fine grained α matrix with a grain size of 0.7 μm. The structure exhibited superplasticity, elongation of 490%, and a maximum flow stress of 35 MPa at 973 K and at an initial strain rate of 5×10^-4/s.

Original language	English
Pages (from-to)	675-681
Number of pages	7
Journal	Scripta Materialia
Volume	40
Issue number	6
DOIs	https://doi.org/10.1016/S1359-6462(98)00486-2
Publication status	Published - 1999 Feb 19
Externally published	Yes

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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abstract = "The effects of alloying elements and heat treatments on the formation of microduplex structure in ultrahigh carbon steels were investigated. A fully pearlitic structure without coarse pro-eutectoid θ particles was obtained by the addition of 2 mass% Al. The microduplex structure consisted of fine grained α matrix with a grain size of 0.7 μm. The structure exhibited superplasticity, elongation of 490%, and a maximum flow stress of 35 MPa at 973 K and at an initial strain rate of 5×10-4/s.",

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AU - Tsuzaki, K.

AU - Sato, E.

AU - Furimoto, S.

AU - Furuhara, Tadashi

AU - Maki, T.

PY - 1999/2/19

Y1 - 1999/2/19

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AB - The effects of alloying elements and heat treatments on the formation of microduplex structure in ultrahigh carbon steels were investigated. A fully pearlitic structure without coarse pro-eutectoid θ particles was obtained by the addition of 2 mass% Al. The microduplex structure consisted of fine grained α matrix with a grain size of 0.7 μm. The structure exhibited superplasticity, elongation of 490%, and a maximum flow stress of 35 MPa at 973 K and at an initial strain rate of 5×10-4/s.

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