Details
| Original language | English |
|---|---|
| Pages (from-to) | 143-149 |
| Number of pages | 7 |
| Journal | International journal of fracture |
| Volume | 160 |
| Issue number | 2 |
| Publication status | Published - Dec 2009 |
| Externally published | Yes |
Abstract
The ductile-to-brittle transition (DBT) in Fe-13Mn-1.3C (Hadfield steel, I) and Fe-13Mn-2.7 Al-1.3C (Hadfield steel, II) (wt.%) single crystals oriented along [011], [1̄44], and [1̄11] directions was investigated under tension in the temperature interval of 77 to 673 K. The DBT temperature interval was found to be independent of single crystal orientation. The DBT temperatures were estimated (1) as the mean value between the temperature corresponding to the minimum crystal ductility and the one coinciding with the onset of the plateau of the ε(T)-dependence (TDBT1); and (2) as the temperature where the volume fraction of brittle failure on the fracture surfaces was 50% (TDBT2). The DBT temperatures estimated this way, do not coincide for both steels. Mechanical twinning has been reported as the primary reason for the occurrence of the DBT in austenitic high-carbon Hadfield steel and appears to account for the difference in DBT temperatures as well. Alloying with aluminum partially suppresses twinning in steel (II). Twinning sets in only after a certain amount of dislocation slip, but still influences the fracture mechanism of steel (II).
Keywords
- Ductile-to-brittle transition, Hadfield steel, Slip, Twinning
ASJC Scopus subject areas
- Engineering(all)
- Computational Mechanics
- Mathematics(all)
- Modelling and Simulation
- Engineering(all)
- Mechanics of Materials
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In: International journal of fracture, Vol. 160, No. 2, 12.2009, p. 143-149.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - The effect of aluminum alloying on ductile-to-brittle transition in Hadfield steel single crystal
AU - Astafurova, E. G.
AU - Chumlyakov, Y. I.
AU - Maier, H. J.
N1 - Funding Information: Acknowledgments The work was partially supported by Russian Foundation for Basic Researches (project # 07-08-00064).
PY - 2009/12
Y1 - 2009/12
N2 - The ductile-to-brittle transition (DBT) in Fe-13Mn-1.3C (Hadfield steel, I) and Fe-13Mn-2.7 Al-1.3C (Hadfield steel, II) (wt.%) single crystals oriented along [011], [1̄44], and [1̄11] directions was investigated under tension in the temperature interval of 77 to 673 K. The DBT temperature interval was found to be independent of single crystal orientation. The DBT temperatures were estimated (1) as the mean value between the temperature corresponding to the minimum crystal ductility and the one coinciding with the onset of the plateau of the ε(T)-dependence (TDBT1); and (2) as the temperature where the volume fraction of brittle failure on the fracture surfaces was 50% (TDBT2). The DBT temperatures estimated this way, do not coincide for both steels. Mechanical twinning has been reported as the primary reason for the occurrence of the DBT in austenitic high-carbon Hadfield steel and appears to account for the difference in DBT temperatures as well. Alloying with aluminum partially suppresses twinning in steel (II). Twinning sets in only after a certain amount of dislocation slip, but still influences the fracture mechanism of steel (II).
AB - The ductile-to-brittle transition (DBT) in Fe-13Mn-1.3C (Hadfield steel, I) and Fe-13Mn-2.7 Al-1.3C (Hadfield steel, II) (wt.%) single crystals oriented along [011], [1̄44], and [1̄11] directions was investigated under tension in the temperature interval of 77 to 673 K. The DBT temperature interval was found to be independent of single crystal orientation. The DBT temperatures were estimated (1) as the mean value between the temperature corresponding to the minimum crystal ductility and the one coinciding with the onset of the plateau of the ε(T)-dependence (TDBT1); and (2) as the temperature where the volume fraction of brittle failure on the fracture surfaces was 50% (TDBT2). The DBT temperatures estimated this way, do not coincide for both steels. Mechanical twinning has been reported as the primary reason for the occurrence of the DBT in austenitic high-carbon Hadfield steel and appears to account for the difference in DBT temperatures as well. Alloying with aluminum partially suppresses twinning in steel (II). Twinning sets in only after a certain amount of dislocation slip, but still influences the fracture mechanism of steel (II).
KW - Ductile-to-brittle transition
KW - Hadfield steel
KW - Slip
KW - Twinning
UR - http://www.scopus.com/inward/record.url?scp=75949115656&partnerID=8YFLogxK
U2 - 10.1007/s10704-009-9414-8
DO - 10.1007/s10704-009-9414-8
M3 - Article
AN - SCOPUS:75949115656
VL - 160
SP - 143
EP - 149
JO - International journal of fracture
JF - International journal of fracture
SN - 0376-9429
IS - 2
ER -