|
|
Effect of Cu Content on Precipitation During Continuous Cooling |
LI Chuang,WANG Xue-min,SHANG Cheng-jia,HE Xin-lai |
School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China |
|
|
Abstract The precipitation behavior of Cu-bearing steels during continuous cooling was investigated. Microstructure of ferrite was obtained by using 1℃/s cooling rates and interrupted cooling. The optical microscope and TEM were used to study the effect of different Cu content on the precipitation process. The results show that when the steels was cooled at 1℃/s, the second-phase precipitates occurs in the steels which Cu content is higher than 1.5%. However there are no obvious precipitates in the steels which Cu content is lower than 1%. The second-phase precipitates are copper-rich particles in the way of phase precipitation.
|
Received: 12 July 2010
Published: 28 September 2011
|
|
|
|
[1] |
Jun Zhao, Hai-bin Zuo, Chao Ling, Wen-tao Guo, Jing-song Wang, Qing-guo Xue. Microstructure evolution of coke under CO2 and H2O atmospheres[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2020, 27(7): 743-754. |
[2] |
Sheng-li Wu, Xiao-bo Zhai, Li-xin Su, Xu-dong Ma. Ore-blending optimization for Canadian iron concentrate during iron ore sintering based on high-temperature characteristics of fines and nuclei[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2020, 27(7): 755-769. |
[3] |
Feng Zhang, De-qing Zhu, Jian Pan, Zheng-qi Guo, Meng-jie Xu. Improving roasting performance and consolidation of pellets made of ultrafine and super high grade magnetite concentrates by modifying basicity[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2020, 27(7): 770-781. |
[4] |
Da‑peng Li, Hua‑zhang Wu, Hai‑feng Wang, Hong Li. Growth of solidified shell in bloom continuous casting mold of hypo-peritectic steel based on a FeS tracer method[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2020, 27(7): 782-787. |
[5] |
Jie Yang, Deng‑fu Chen, Miao‑yong Zhu. Crystallization and heat transfer of CaO–SiO2-based slag for high-Mn–high-Al steel[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2020, 27(7): 788-795. |
[6] |
Ping‑guo Jiang, Jin‑sheng Liu, Yi‑yu Xiao, Xiao‑heng Tan, Wen‑jie Liu. Recovery of iron from copper slag via modified roasting in CO–CO2 mixed gas and magnetic separation[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2020, 27(7): 796-806. |
|
|
|
|