sigma-Phase Precipitation Mechanism of 15Cr-15Ni Titanium-Modified Austenitic Stainless Steel During Long-Term Thermal Exposure
文献类型：期刊论文
| 作者 | Wang, ZN; Liang, T; Xing, WW; Du, AB; Gao, M; Ma, YC; Liu, K; Liang, T (reprint author), Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Liaoning, Peoples R China. |
| 刊名 | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| 出版日期 | 2018-03-01 |
| 卷号 | 31期号:3页码:281-289 |
| 关键词 | Reactor Applications Creep Strength Temperature Cr Ti Kinetics Elements Cracking Fission Mo |
| ISSN号 | 1006-7191 |
| 英文摘要 | The sigma-phase precipitation in 20% cold-worked 15Cr-15Ni titanium-modified austenitic stainless steel was studied during long-term aging treatment. During the isothermal aging stage, the amount of sigma-phase was significantly increased at beginning and gradually became constant. The aging time only slightly affected the size and morphology of the sigma-phase. Conversely, during the isochronal aging stage, the amount of sigma-phase grew rapidly with the increase in the aging temperature. The sigma-phase with a large amount of stacking faults was prone to nucleate around the (Ti, Mo) C particles or at the grain boundaries. The (Ti, Mo) C particles can act as effective nucleation sites, where the sigma-phase directly precipitates from the austenitic matrix. From this work, the growth of sigma-phase is found to be influenced by the aging temperature, and a new mechanism of sigma-phase precipitation from austenite has been proposed.; The sigma-phase precipitation in 20% cold-worked 15Cr-15Ni titanium-modified austenitic stainless steel was studied during long-term aging treatment. During the isothermal aging stage, the amount of sigma-phase was significantly increased at beginning and gradually became constant. The aging time only slightly affected the size and morphology of the sigma-phase. Conversely, during the isochronal aging stage, the amount of sigma-phase grew rapidly with the increase in the aging temperature. The sigma-phase with a large amount of stacking faults was prone to nucleate around the (Ti, Mo) C particles or at the grain boundaries. The (Ti, Mo) C particles can act as effective nucleation sites, where the sigma-phase directly precipitates from the austenitic matrix. From this work, the growth of sigma-phase is found to be influenced by the aging temperature, and a new mechanism of sigma-phase precipitation from austenite has been proposed. |
| 学科主题 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 公开日期 | 2018-06-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/79453]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Liang, T (reprint author), Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Liaoning, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Wang, ZN,Liang, T,Xing, WW,et al. sigma-Phase Precipitation Mechanism of 15Cr-15Ni Titanium-Modified Austenitic Stainless Steel During Long-Term Thermal Exposure[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2018,31(3):281-289. |
| APA | Wang, ZN.,Liang, T.,Xing, WW.,Du, AB.,Gao, M.,...&Liang, T .(2018).sigma-Phase Precipitation Mechanism of 15Cr-15Ni Titanium-Modified Austenitic Stainless Steel During Long-Term Thermal Exposure.ACTA METALLURGICA SINICA-ENGLISH LETTERS,31(3),281-289. |
| MLA | Wang, ZN,et al."sigma-Phase Precipitation Mechanism of 15Cr-15Ni Titanium-Modified Austenitic Stainless Steel During Long-Term Thermal Exposure".ACTA METALLURGICA SINICA-ENGLISH LETTERS 31.3(2018):281-289. |
入库方式： OAI收割
来源：金属研究所
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