Microstructures and Mechanical Properties of a Newly Developed Austenitic Heat Resistant Steel
文献类型：期刊论文
| 作者 | Liu, Peng1,2; Chu, Zhao-Kuang1; Yuan, Yong3; Wang, Dao-Hong4; Cui, Chuan-Yong1; Hou, Gui-Chen1; Zhou, Yi-Zhou1; Sun, Xiao-Feng1 |
| 刊名 | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| 出版日期 | 2019-04-01 |
| 卷号 | 32期号:4页码:517-525 |
| 关键词 | Austenitic heat resistant steel Microstructure Mechanical property Fracture mode |
| ISSN号 | 1006-7191 |
| DOI | 10.1007/s40195-018-0770-0 |
| 通讯作者 | Cui, Chuan-Yong(chycui@imr.ac.cn) |
| 英文摘要 | The effect of heat treatment on the microstructures and mechanical properties of a newly developed austenitic heat resistant steel (named as T8 alloy) for ultra-supercritical applications have been studied. Results show that the main phases in the alloy after solution treatment are and primary MX. Subsequent aging treatment causes the precipitation of M23C6 carbides along the grain boundaries and a small number of nanoscale MX inside the grains. In addition, with increasing the aging temperature and time, the morphology of M23C6 carbides changes from semi-continuous chain to continuous network. Compared with a commercial HR3C alloy, T8 alloy has comparable tensile strength, but higher stress rupture strength. The dominant cracking mechanism of the alloy during tensile test at room temperature is transgranular, while at high temperature, intergranular cracking becomes the main cracking mode, which may be caused by the precipitation of continuous M23C6 carbides along the grain boundaries. Typical intergranular cracking is the dominant cracking mode of the alloy at all stress rupture tests. |
| 资助项目 | National Natural Science Foundation of China[11332010] ; National Natural Science Foundation of China[51671189] ; National Natural Science Foundation of China[51701210] ; China Huaneng Group Co. Ltd.[ZD-15-HJK02] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000461434000011 |
| 出版者 | CHINESE ACAD SCIENCES, INST METAL RESEARCH |
| 资助机构 | National Natural Science Foundation of China ; China Huaneng Group Co. Ltd. |
| 源URL | [http://ir.imr.ac.cn/handle/321006/132055]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Cui, Chuan-Yong |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China 3.Xian Thermal Power Res Inst Co Ltd, Xian 710032, Peoples R China 4.Jiangsu Feiyue Pump Grp Co Ltd, Taizhou 225300, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Peng,Chu, Zhao-Kuang,Yuan, Yong,et al. Microstructures and Mechanical Properties of a Newly Developed Austenitic Heat Resistant Steel[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2019,32(4):517-525. |
| APA | Liu, Peng.,Chu, Zhao-Kuang.,Yuan, Yong.,Wang, Dao-Hong.,Cui, Chuan-Yong.,...&Sun, Xiao-Feng.(2019).Microstructures and Mechanical Properties of a Newly Developed Austenitic Heat Resistant Steel.ACTA METALLURGICA SINICA-ENGLISH LETTERS,32(4),517-525. |
| MLA | Liu, Peng,et al."Microstructures and Mechanical Properties of a Newly Developed Austenitic Heat Resistant Steel".ACTA METALLURGICA SINICA-ENGLISH LETTERS 32.4(2019):517-525. |
入库方式： OAI收割
来源：金属研究所
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