| Study on Laves phase in an advanced heat-resistant steel | |
| Alternative Title | Study on Laves phase in an advanced heat-resistant steel |
| Ping HU1; Wei YAN1; Wei SHA2; Wei WANG1; Zhanli GUO3; Yiyin SHAN1; Ke YANG1 | |
| 2009 | |
| Source Publication | Frontiers of Materials Science in China
 |
| ISSN | 1673-7377 |
| Volume | 3Issue:4Pages:434-441 |
| Abstract | The Laves phase is one of the most significant precipitates in ferritic/martensitic heat-resistant steels.Laves phase precipitates in the creep rupture specimens with different rupture life were studied on a 10 wt.% Cr heat-resistant steel. JMatPro thermodynamic and kinetic calculations were carried out to simulate and predict the precipitation behavior of the Laves phase in the steel at the equilibrium state. The morphologies of the Laves phase developed with creep time were characterized under both scanning electron microscope (SEM) and transmission electron microscope (TEM). Effects of Co on the growth behavior of Laves phase and the corresponding fracture mode were analyzed. It was found that the Laves phase in the steel grew to 200 nm in size after only 1598 h at 600℃,indicating that the addition of Co in the steel could accelerate the growth of Laves phase, and the coalescence of large Laves phase would lead to the brittle intergranular fracture. |
| Other Abstract | The Laves phase is one of the most significant precipitates in ferritic/martensitic heat-resistant steels.Laves phase precipitates in the creep rupture specimens with different rupture life were studied on a 10 wt.% Cr heat-resistant steel. JMatPro thermodynamic and kinetic calculations were carried out to simulate and predict the precipitation behavior of the Laves phase in the steel at the equilibrium state. The morphologies of the Laves phase developed with creep time were characterized under both scanning electron microscope (SEM) and transmission electron microscope (TEM). Effects of Co on the growth behavior of Laves phase and the corresponding fracture mode were analyzed. It was found that the Laves phase in the steel grew to 200 nm in size after only 1598 h at 600℃,indicating that the addition of Co in the steel could accelerate the growth of Laves phase, and the coalescence of large Laves phase would lead to the brittle intergranular fracture. |
| Keyword | heat-resistant steel Laves phase precipitate microstructure creep |
| Indexed By | CSCD |
| Language | 英语 |
| CSCD ID | CSCD:3797538 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/144833 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 1.中国科学院金属研究所 2.皇后大学 3.Sente Software Ltd., Surrey Technology Centre |
| Recommended Citation GB/T 7714 | Ping HU,Wei YAN,Wei SHA,et al. Study on Laves phase in an advanced heat-resistant steel[J]. Frontiers of Materials Science in China,2009,3(4):434-441. |
| APA | Ping HU.,Wei YAN.,Wei SHA.,Wei WANG.,Zhanli GUO.,...&Ke YANG.(2009).Study on Laves phase in an advanced heat-resistant steel.Frontiers of Materials Science in China,3(4),434-441. |
| MLA | Ping HU,et al."Study on Laves phase in an advanced heat-resistant steel".Frontiers of Materials Science in China 3.4(2009):434-441. |
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