Abstract
Fe-33Mn-xC (x = 0, 0.3, 0.6, 0.8, and 1.1 mass%) fully austenitic steels showed ductility degradation owing to dynamic strain aging (DSA). The elongation increased with increasing carbon concentration at a strain rate of 10− 2 s− 1. However, in the steels with carbon contents of 0.6%, 0.8%, and 1.1%, the elongation decreased with increasing carbon concentration at a strain rate of 10− 5 s− 1 where the DAS effect is distinct. Although all specimens showed ductile fracture with the formation of dimples, the work hardening-true stress relation of the Fe-33Mn-1.1C steel demonstrated fracture before satisfying Considère's criterion even at high strain rates.
| Original language | English |
|---|---|
| Pages (from-to) | 20-23 |
| Number of pages | 4 |
| Journal | Scripta Materialia |
| Volume | 141 |
| DOIs | |
| Publication status | Published - Dec 2017 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
Cite this
Room-temperature blue brittleness of Fe-Mn-C austenitic steels. / Koyama, Motomichi; Shimomura, Yusaku; Chiba, Aya; Akiyama, Eiji; Tsuzaki, Kaneaki.
In: Scripta Materialia, Vol. 141, 12.2017, p. 20-23.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Room-temperature blue brittleness of Fe-Mn-C austenitic steels
AU - Koyama, Motomichi
AU - Shimomura, Yusaku
AU - Chiba, Aya
AU - Akiyama, Eiji
AU - Tsuzaki, Kaneaki
PY - 2017/12
Y1 - 2017/12
N2 - Fe-33Mn-xC (x = 0, 0.3, 0.6, 0.8, and 1.1 mass%) fully austenitic steels showed ductility degradation owing to dynamic strain aging (DSA). The elongation increased with increasing carbon concentration at a strain rate of 10− 2 s− 1. However, in the steels with carbon contents of 0.6%, 0.8%, and 1.1%, the elongation decreased with increasing carbon concentration at a strain rate of 10− 5 s− 1 where the DAS effect is distinct. Although all specimens showed ductile fracture with the formation of dimples, the work hardening-true stress relation of the Fe-33Mn-1.1C steel demonstrated fracture before satisfying Considère's criterion even at high strain rates.
AB - Fe-33Mn-xC (x = 0, 0.3, 0.6, 0.8, and 1.1 mass%) fully austenitic steels showed ductility degradation owing to dynamic strain aging (DSA). The elongation increased with increasing carbon concentration at a strain rate of 10− 2 s− 1. However, in the steels with carbon contents of 0.6%, 0.8%, and 1.1%, the elongation decreased with increasing carbon concentration at a strain rate of 10− 5 s− 1 where the DAS effect is distinct. Although all specimens showed ductile fracture with the formation of dimples, the work hardening-true stress relation of the Fe-33Mn-1.1C steel demonstrated fracture before satisfying Considère's criterion even at high strain rates.
UR - http://www.scopus.com/inward/record.url?scp=85024897628&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85024897628&partnerID=8YFLogxK
U2 - 10.1016/j.scriptamat.2017.07.017
DO - 10.1016/j.scriptamat.2017.07.017
M3 - Article
AN - SCOPUS:85024897628
VL - 141
SP - 20
EP - 23
JO - Scripta Materialia
JF - Scripta Materialia
SN - 1359-6462
ER -