| Transformation Behavior of Precipitates in a W-alloyed 10 wt pct Cr Steel for Ultra-supercritical Power Plants | |
| X. Q. Hu; N. M. Xiao; X. H. Luo; D. Z. Li | |
| 2010 | |
| Source Publication | Journal of Materials Science & Technology
 |
| ISSN | 1005-0302 |
| Volume | 26Issue:9Pages:817-822 |
| Abstract | Thermodynamic calculation, thermal analysis, and identification and observation of precipitates have been carried out on a W-alloyed 10 wt pct Cr steel by means of ThermoCalc program, differential thermal analysis (DTA), X-ray diffraction (XRD) and transmission electron microscopy (TEM) with an energy dispersive X-ray spectrometer, respectively. Several critical phase transformation points were determined by combining experimental results with calculations. Two individually stable phases of Nb(C, N) and VN, instead of one single phase MX (X: C, N), M(23)C(6) or Laves phases, were predicted in the calculated equilibrium phase diagram. An unstable elongated M(7)C(3) with relatively higher Cr was detected unexpectedly in the normalized and tempered steel. Two kinds of spherical Nb(C, N) with different size were recognized as the primary and the secondary precipitates of Nb(C, N) which contain different V contents. It was observed that one kind of complex precipitate in a special V-wing shape was resulted from two plate-like VN adhering to coarse primary spherical Nb(C, N). |
| description.department | [hu, xiaoqiang; xiao, namin; luo, xinghong; li, dianzhong] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;li, dz (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;dzli@imr.ac.cn |
| Keyword | Heat Resistant Steel Mx (x: c Phase Transformation n) Microstructure Precipitate Creep-rupture Strength Modified 9cr-1mo Steel Microstructural Evolution Mx Carbonitride Phase |
| URL | 查看原文 |
| WOS ID | WOS:000282790800009 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/31162 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | X. Q. Hu,N. M. Xiao,X. H. Luo,et al. Transformation Behavior of Precipitates in a W-alloyed 10 wt pct Cr Steel for Ultra-supercritical Power Plants[J]. Journal of Materials Science & Technology,2010,26(9):817-822. |
| APA | X. Q. Hu,N. M. Xiao,X. H. Luo,&D. Z. Li.(2010).Transformation Behavior of Precipitates in a W-alloyed 10 wt pct Cr Steel for Ultra-supercritical Power Plants.Journal of Materials Science & Technology,26(9),817-822. |
| MLA | X. Q. Hu,et al."Transformation Behavior of Precipitates in a W-alloyed 10 wt pct Cr Steel for Ultra-supercritical Power Plants".Journal of Materials Science & Technology 26.9(2010):817-822. |
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