Study of high strength pipeline steels with different microstructures
文献类型：期刊论文
| 作者 | W. Wang ; Y. Y. Shan ; K. Yang |
| 刊名 | Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
 |
| 出版日期 | 2009 |
| 卷号 | 502期号:1-2页码:38-44 |
| 关键词 | Pipeline steels Polygonal ferrite (PF) Acicular ferrite (AF) Mechanical properties Electron backscatter diffraction (EBSD) analysis low-carbon transformation |
| ISSN号 | 0921-5093 |
| 中文摘要 | In the present study, comparison studies on mechanical properties were made on a commercial X70 grade polygonal ferrite (PF) dominated pipeline steel and a laboratory developed X90 grade acicular ferrite (AF) dominated pipeline steel obtained by optimum thermo-mechanical controlled processing (TMCP). Charpy impact test results indicated that the upper shelfenergy (USE) of the AF pipeline steel was a little bit higher, but its energy transition temperature (ETT) was extremely low, about -162 degrees C, much lower than that of the PF pipeline steel of about -121 degrees C. It was analyzed that higher strength and better toughness of the AF pipeline steel came from its finer grain size and higher density of dislocations and subboundaries, which could be also further proved from the electron backscatter diffraction (EBSD) analysis for its finer effective grain size (EGS) and higher content of low angle grain boundaries (LAGBs), smaller cleavage fracture unit measured from the fracture surface around fracture origin fractured at -196 degrees C, and its more bent crack propagation path in the fracture. (C) 2008 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32378]  |
| 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 | W. Wang,Y. Y. Shan,K. Yang. Study of high strength pipeline steels with different microstructures[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2009,502(1-2):38-44. |
| APA | W. Wang,Y. Y. Shan,&K. Yang.(2009).Study of high strength pipeline steels with different microstructures.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,502(1-2),38-44. |
| MLA | W. Wang,et al."Study of high strength pipeline steels with different microstructures".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 502.1-2(2009):38-44. |
入库方式： OAI收割
来源：金属研究所
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