The eutectic carbides and creep rupture strength of 25Cr20Ni heat-resistant steel tubes centrifugally cast with different solidification conditions
文献类型：期刊论文
| 作者 | X. Q. Wu ; H. M. Jing ; Y. G. Zheng ; Z. M. Yao ; W. Ke ; Z. Q. Hu |
| 刊名 | Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
 |
| 出版日期 | 2000 |
| 卷号 | 293期号:1-2页码:252-260 |
| 关键词 | heat-resistant steel tubes centrifugal solidification electromagnetic field eutectic carbides creep rupture strength cooling curves alloy microstructure field |
| ISSN号 | 0921-5093 |
| 中文摘要 | The eutectic carbides and creep rupture strength of 25Cr20Ni heat-resistant steel tubes centrifugally cast with different solidification conditions were investigated in detail. The results reveal that the eutectic carbides precipitated primarily at the dendrite and grain boundaries show various morphologies from the outer wall to the inner wall along radial direction of the cast tubes, consisting of the thin film-like carbides, the blocky carbides, the lamellar carbide clusters resembling the pearlite and the skeleton-like carbides. The initial solidification conditions have significant influences on the grain morphologies and the distribution of the eutectic carbides in the cast tubes. Increasing the cooling rate markedly promotes the development of the columnar grains and restrains the precipitation of the eutectic carbides, while an applied electromagnetic field during the centrifugal solidification induces a notable grain refining and a marked change of the precipitation zones of the eutectic carbides from the dendrite boundaries to the grain boundaries. The applied electromagnetic markedly improves the creep rupture strength of the centrifugal cast 25Cr20Ni heat-resistant steel tubes. The relationships between the initial solidification conditions and the solidification processes as well as the creep rupture strength were discussed at length. (C) 2000 Elsevier Science S.A. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/37211]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | X. Q. Wu,H. M. Jing,Y. G. Zheng,et al. The eutectic carbides and creep rupture strength of 25Cr20Ni heat-resistant steel tubes centrifugally cast with different solidification conditions[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2000,293(1-2):252-260. |
| APA | X. Q. Wu,H. M. Jing,Y. G. Zheng,Z. M. Yao,W. Ke,&Z. Q. Hu.(2000).The eutectic carbides and creep rupture strength of 25Cr20Ni heat-resistant steel tubes centrifugally cast with different solidification conditions.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,293(1-2),252-260. |
| MLA | X. Q. Wu,et al."The eutectic carbides and creep rupture strength of 25Cr20Ni heat-resistant steel tubes centrifugally cast with different solidification conditions".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 293.1-2(2000):252-260. |
入库方式： OAI收割
来源：金属研究所
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