Details
| Original language | English |
|---|---|
| Title of host publication | 12th International Conference on Fracture 2009, ICF-12 |
| Pages | 5529-5537 |
| Number of pages | 9 |
| Publication status | Published - 2009 |
| Externally published | Yes |
| Event | 12th International Conference on Fracture 2009, ICF-12 - Ottawa, ON, Canada Duration: 12 Jul 2009 → 17 Jul 2009 |
Publication series
| Name | 12th International Conference on Fracture 2009, ICF-12 |
|---|---|
| Volume | 7 |
Abstract
Using single crystals of steels Fe-13Mn-1.3C (Hadfield steel, I) and Fe-13Mn-2, 7Al-1.3C (II) (wt. %) oriented along [011], [1̄44], and [1̄11] directions, the peculiarities of a ductile-to-brittle transition (DBT) were investigated by transmission and scanning electron microscopies, X-ray researches. Under tension of steels investigated in a temperature interval of (77-673)K, the DBT was established, and the DBT temperature interval has been found to be independent on single crystal orientation. Twinning was revealed to be a primary deformation mechanism of [011], [1̄44], and [1̄11] Hadfield steel single crystals from the very beginning of plastic flow in a temperature interval of (77-293)K. Alloying with aluminum increases stacking fault energy of steel I and, therefore, suppresses twinning partially. It starts after portion of slip but, nevertheless, influences fracture mechanism of steel II. Consequently, DBT is determined by high stress level, strong temperature dependence of critical resolved shear stresses due to carbon content in both steels and pronounced mechanical twinning.
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Geotechnical Engineering and Engineering Geology
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12th International Conference on Fracture 2009, ICF-12. 2009. p. 5529-5537 (12th International Conference on Fracture 2009, ICF-12; Vol. 7).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - The influence of aluminum alloying on ductile-to-brittle transition in hadfield steel single crystals
AU - Astafurova, E. G.
AU - Chumlyakov, Yu I.
AU - Maier, H. J.
PY - 2009
Y1 - 2009
N2 - Using single crystals of steels Fe-13Mn-1.3C (Hadfield steel, I) and Fe-13Mn-2, 7Al-1.3C (II) (wt. %) oriented along [011], [1̄44], and [1̄11] directions, the peculiarities of a ductile-to-brittle transition (DBT) were investigated by transmission and scanning electron microscopies, X-ray researches. Under tension of steels investigated in a temperature interval of (77-673)K, the DBT was established, and the DBT temperature interval has been found to be independent on single crystal orientation. Twinning was revealed to be a primary deformation mechanism of [011], [1̄44], and [1̄11] Hadfield steel single crystals from the very beginning of plastic flow in a temperature interval of (77-293)K. Alloying with aluminum increases stacking fault energy of steel I and, therefore, suppresses twinning partially. It starts after portion of slip but, nevertheless, influences fracture mechanism of steel II. Consequently, DBT is determined by high stress level, strong temperature dependence of critical resolved shear stresses due to carbon content in both steels and pronounced mechanical twinning.
AB - Using single crystals of steels Fe-13Mn-1.3C (Hadfield steel, I) and Fe-13Mn-2, 7Al-1.3C (II) (wt. %) oriented along [011], [1̄44], and [1̄11] directions, the peculiarities of a ductile-to-brittle transition (DBT) were investigated by transmission and scanning electron microscopies, X-ray researches. Under tension of steels investigated in a temperature interval of (77-673)K, the DBT was established, and the DBT temperature interval has been found to be independent on single crystal orientation. Twinning was revealed to be a primary deformation mechanism of [011], [1̄44], and [1̄11] Hadfield steel single crystals from the very beginning of plastic flow in a temperature interval of (77-293)K. Alloying with aluminum increases stacking fault energy of steel I and, therefore, suppresses twinning partially. It starts after portion of slip but, nevertheless, influences fracture mechanism of steel II. Consequently, DBT is determined by high stress level, strong temperature dependence of critical resolved shear stresses due to carbon content in both steels and pronounced mechanical twinning.
UR - http://www.scopus.com/inward/record.url?scp=84869829465&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84869829465
SN - 9781617382277
T3 - 12th International Conference on Fracture 2009, ICF-12
SP - 5529
EP - 5537
BT - 12th International Conference on Fracture 2009, ICF-12
T2 - 12th International Conference on Fracture 2009, ICF-12
Y2 - 12 July 2009 through 17 July 2009
ER -