Abstract
Pine cone fracture surfaces were observed in Charpy and compact tension specimens of cryogenic Ni steels containing retained austenite. These steels, especially those bearing no molybdenum, were embrittled on slow cooling from final tempering. ″Pine cone″ is a kind of intergranular fracture surface produced by fracture along P segregated alpha prime / gamma interfaces which formed at prior austenitic grain boundaries. Intercritical heat treatment promoted austenite formation and suppressed fracture.
| Original language | English |
|---|---|
| Pages (from-to) | 806-814 |
| Number of pages | 9 |
| Journal | Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan |
| Volume | 69 |
| Issue number | 7 |
| Publication status | Published - 1983 May |
| Externally published | Yes |
Fingerprint
ASJC Scopus subject areas
- Metals and Alloys
Cite this
PINE CONE LIKE FRACTURE SURFACE AND TEMPER EMBRITTLEMENT OF 5. 5%Ni STEELS. / Murakami, Masato; Shibata, Koji; Nagai, Kotobu; Fujita, Toshio.
In: Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan, Vol. 69, No. 7, 05.1983, p. 806-814.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - PINE CONE LIKE FRACTURE SURFACE AND TEMPER EMBRITTLEMENT OF 5. 5%Ni STEELS.
AU - Murakami, Masato
AU - Shibata, Koji
AU - Nagai, Kotobu
AU - Fujita, Toshio
PY - 1983/5
Y1 - 1983/5
N2 - Pine cone fracture surfaces were observed in Charpy and compact tension specimens of cryogenic Ni steels containing retained austenite. These steels, especially those bearing no molybdenum, were embrittled on slow cooling from final tempering. ″Pine cone″ is a kind of intergranular fracture surface produced by fracture along P segregated alpha prime / gamma interfaces which formed at prior austenitic grain boundaries. Intercritical heat treatment promoted austenite formation and suppressed fracture.
AB - Pine cone fracture surfaces were observed in Charpy and compact tension specimens of cryogenic Ni steels containing retained austenite. These steels, especially those bearing no molybdenum, were embrittled on slow cooling from final tempering. ″Pine cone″ is a kind of intergranular fracture surface produced by fracture along P segregated alpha prime / gamma interfaces which formed at prior austenitic grain boundaries. Intercritical heat treatment promoted austenite formation and suppressed fracture.
UR - http://www.scopus.com/inward/record.url?scp=0020749667&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0020749667&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0020749667
VL - 69
SP - 806
EP - 814
JO - Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
JF - Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
SN - 0021-1575
IS - 7
ER -