Abstract
The manufacturing technology of corrosion resistant alloy (CRA) clad UOE pipe by applying thermo-mechanical control process (TMCP) has been studies. In order to obtain good pitting corrosion resistance in the Incoloy 825 layer, it is necessary to ensure complete recrystallization and suppress the precipitation of chromium carbides in the Incoloy 825 layer after rolling. To this end the clad plate was finish-rolled at high temperature and water-cooled after appropriate air cooling. However, in conventional steel, high temperature rolling considerably deteriorates the low-temperature toughness, therefore, it was found that increasing the niobium content causes the microstructure to refine remarkably and provides an excellent balance of strength and low-temperature toughness at a niobium content of about 0.1% even in high temperature rolling. the grain refinement by adding high niobium is attributable to suppression of austenite grain coarsening during slab-reheating by Nb(CN) particles, a rise in recrystallization stop temperature of austenite.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the International Offshore and Polar Engineering Conference |
| Publisher | Publ by Int Soc of Offshore and Polar Engineerns (ISOPE) |
| Pages | 172-179 |
| Number of pages | 8 |
| ISBN (Print) | 1880653125 |
| Publication status | Published - Jan 1 1994 |
| Externally published | Yes |
| Event | Proceedings of the 4th International Offshore and Polar Engineering Conference. Part 2 (of 4) - Osaka, Jpn Duration: Apr 10 1994 → Apr 15 1994 |
Publication series
| Name | Proceedings of the International Offshore and Polar Engineering Conference |
|---|---|
| Volume | 2 |
Other
| Other | Proceedings of the 4th International Offshore and Polar Engineering Conference. Part 2 (of 4) |
|---|---|
| City | Osaka, Jpn |
| Period | 4/10/94 → 4/15/94 |
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All Science Journal Classification (ASJC) codes
- Energy Engineering and Power Technology
- Ocean Engineering
- Mechanical Engineering
Cite this
High-Niobium bearing steel for base material of CRA clad UOE pipe. / Terada, Y.; Tamehiro, H.; Uemori, Ryuji; Maruyama, N.; Takahashi, A.; Ogawa, H.
Proceedings of the International Offshore and Polar Engineering Conference. Publ by Int Soc of Offshore and Polar Engineerns (ISOPE), 1994. p. 172-179 (Proceedings of the International Offshore and Polar Engineering Conference; Vol. 2).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - High-Niobium bearing steel for base material of CRA clad UOE pipe
AU - Terada, Y.
AU - Tamehiro, H.
AU - Uemori, Ryuji
AU - Maruyama, N.
AU - Takahashi, A.
AU - Ogawa, H.
PY - 1994/1/1
Y1 - 1994/1/1
N2 - The manufacturing technology of corrosion resistant alloy (CRA) clad UOE pipe by applying thermo-mechanical control process (TMCP) has been studies. In order to obtain good pitting corrosion resistance in the Incoloy 825 layer, it is necessary to ensure complete recrystallization and suppress the precipitation of chromium carbides in the Incoloy 825 layer after rolling. To this end the clad plate was finish-rolled at high temperature and water-cooled after appropriate air cooling. However, in conventional steel, high temperature rolling considerably deteriorates the low-temperature toughness, therefore, it was found that increasing the niobium content causes the microstructure to refine remarkably and provides an excellent balance of strength and low-temperature toughness at a niobium content of about 0.1% even in high temperature rolling. the grain refinement by adding high niobium is attributable to suppression of austenite grain coarsening during slab-reheating by Nb(CN) particles, a rise in recrystallization stop temperature of austenite.
AB - The manufacturing technology of corrosion resistant alloy (CRA) clad UOE pipe by applying thermo-mechanical control process (TMCP) has been studies. In order to obtain good pitting corrosion resistance in the Incoloy 825 layer, it is necessary to ensure complete recrystallization and suppress the precipitation of chromium carbides in the Incoloy 825 layer after rolling. To this end the clad plate was finish-rolled at high temperature and water-cooled after appropriate air cooling. However, in conventional steel, high temperature rolling considerably deteriorates the low-temperature toughness, therefore, it was found that increasing the niobium content causes the microstructure to refine remarkably and provides an excellent balance of strength and low-temperature toughness at a niobium content of about 0.1% even in high temperature rolling. the grain refinement by adding high niobium is attributable to suppression of austenite grain coarsening during slab-reheating by Nb(CN) particles, a rise in recrystallization stop temperature of austenite.
UR - http://www.scopus.com/inward/record.url?scp=0027940764&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0027940764&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:0027940764
SN - 1880653125
T3 - Proceedings of the International Offshore and Polar Engineering Conference
SP - 172
EP - 179
BT - Proceedings of the International Offshore and Polar Engineering Conference
PB - Publ by Int Soc of Offshore and Polar Engineerns (ISOPE)
ER -