Dependence of the brittle-to-ductile transition temperature (BDTT) on the Al content of Fe-Al alloys

D. Risanti; J. Deges; L. Falat; S. Kobayashi; J. Konrad; M. Palm; B. Pöter; A. Schneider; C. Stallybrass; F. Stein

doi:10.1016/j.intermet.2005.02.007

Dependence of the brittle-to-ductile transition temperature (BDTT) on the Al content of Fe-Al alloys

D. Risanti^*, J. Deges, L. Falat, S. Kobayashi, J. Konrad, M. Palm, B. Pöter, A. Schneider, C. Stallybrass, F. Stein

^*Corresponding author for this work

Max Planck Institute for Iron Research

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

54 Citations (Scopus)

Abstract

The brittle-to-ductile transition temperature (BDTT) of binary Fe-Al alloys with between 9.6 and 45 at.% Al was investigated in the as-cast state by four-point bending tests. An increase of the BDTT was observed with increasing aluminium content between 9.6 and 19.8 at.%. Up to 41.3 at.%, the BDTT did not change significantly. A sharp increase of the BDTT occurred between 41.3 and 45 at.% Al. Transgranular cleavage was observed at a composition of 25 at.% Al, mixed-mode fracture between 39.6 and 41.3 at.% Al and intergranular fracture at 45 at.% Al. The results indicate that the increase in BDTT is correlated with the transition from mixed-mode to intergranular fracture.

Original language	English
Pages (from-to)	1337-1342
Number of pages	6
Journal	Intermetallics
Volume	13
Issue number	12
DOIs	https://doi.org/10.1016/j.intermet.2005.02.007
Publication status	Published - Dec 2005
Externally published	Yes

Keywords

A. Iron aluminides (based on FeAl)
A. Iron aluminides (based on FeAl)
B. Brittleness and ductility
B. Fracture mode
B. Mechanical properties at ambient temperature
B. Mechanical properties at high temperatures

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10.1016/j.intermet.2005.02.007

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title = "Dependence of the brittle-to-ductile transition temperature (BDTT) on the Al content of Fe-Al alloys",

abstract = "The brittle-to-ductile transition temperature (BDTT) of binary Fe-Al alloys with between 9.6 and 45 at.% Al was investigated in the as-cast state by four-point bending tests. An increase of the BDTT was observed with increasing aluminium content between 9.6 and 19.8 at.%. Up to 41.3 at.%, the BDTT did not change significantly. A sharp increase of the BDTT occurred between 41.3 and 45 at.% Al. Transgranular cleavage was observed at a composition of 25 at.% Al, mixed-mode fracture between 39.6 and 41.3 at.% Al and intergranular fracture at 45 at.% Al. The results indicate that the increase in BDTT is correlated with the transition from mixed-mode to intergranular fracture.",

keywords = "A. Iron aluminides (based on FeAl), A. Iron aluminides (based on FeAl), B. Brittleness and ductility, B. Fracture mode, B. Mechanical properties at ambient temperature, B. Mechanical properties at high temperatures",

author = "D. Risanti and J. Deges and L. Falat and S. Kobayashi and J. Konrad and M. Palm and B. P{\"o}ter and A. Schneider and C. Stallybrass and F. Stein",

year = "2005",

month = dec,

doi = "10.1016/j.intermet.2005.02.007",

language = "English",

volume = "13",

pages = "1337--1342",

journal = "Intermetallics",

issn = "0966-9795",

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T1 - Dependence of the brittle-to-ductile transition temperature (BDTT) on the Al content of Fe-Al alloys

AU - Risanti, D.

AU - Deges, J.

AU - Falat, L.

AU - Kobayashi, S.

AU - Konrad, J.

AU - Palm, M.

AU - Pöter, B.

AU - Schneider, A.

AU - Stallybrass, C.

AU - Stein, F.

PY - 2005/12

Y1 - 2005/12

N2 - The brittle-to-ductile transition temperature (BDTT) of binary Fe-Al alloys with between 9.6 and 45 at.% Al was investigated in the as-cast state by four-point bending tests. An increase of the BDTT was observed with increasing aluminium content between 9.6 and 19.8 at.%. Up to 41.3 at.%, the BDTT did not change significantly. A sharp increase of the BDTT occurred between 41.3 and 45 at.% Al. Transgranular cleavage was observed at a composition of 25 at.% Al, mixed-mode fracture between 39.6 and 41.3 at.% Al and intergranular fracture at 45 at.% Al. The results indicate that the increase in BDTT is correlated with the transition from mixed-mode to intergranular fracture.

AB - The brittle-to-ductile transition temperature (BDTT) of binary Fe-Al alloys with between 9.6 and 45 at.% Al was investigated in the as-cast state by four-point bending tests. An increase of the BDTT was observed with increasing aluminium content between 9.6 and 19.8 at.%. Up to 41.3 at.%, the BDTT did not change significantly. A sharp increase of the BDTT occurred between 41.3 and 45 at.% Al. Transgranular cleavage was observed at a composition of 25 at.% Al, mixed-mode fracture between 39.6 and 41.3 at.% Al and intergranular fracture at 45 at.% Al. The results indicate that the increase in BDTT is correlated with the transition from mixed-mode to intergranular fracture.

KW - A. Iron aluminides (based on FeAl)

KW - B. Brittleness and ductility

KW - B. Fracture mode

KW - B. Mechanical properties at ambient temperature

KW - B. Mechanical properties at high temperatures

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U2 - 10.1016/j.intermet.2005.02.007

DO - 10.1016/j.intermet.2005.02.007

M3 - Article

AN - SCOPUS:22844451624

SN - 0966-9795

VL - 13

SP - 1337

EP - 1342

JO - Intermetallics

JF - Intermetallics

IS - 12

ER -

Dependence of the brittle-to-ductile transition temperature (BDTT) on the Al content of Fe-Al alloys

Abstract

Keywords

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