Evolution of Thermally-Induced Microstructural Defects in the Fe-9Cr Alloy
文献类型：期刊论文
| 作者 | Lian XY(连相宇); Cao XZ(曹兴忠) ; Jin SX(靳硕学); Luo JB(罗见兵); Yu, RS; Zhu T(朱特); Gong YH(龚毅豪); Wang BY(王宝义); Yu RS(于润升); Lian, XY
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| 刊名 | PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
 |
| 出版日期 | 2018 |
| 卷号 | 215期号:1页码:1700349 |
| 关键词 | defects dislocation network Fe-9Cr alloys positron annihilation |
| ISSN号 | 1862-6300 |
| DOI | 10.1002/pssa.201700349 |
| 文献子类 | Article |
| 英文摘要 | The purpose of the study detailed in this paper is to investigate the evolution of microstructural defects in the Fe-9Cr binary alloy induced by isochronal annealing from 373 to 1223 K. Positron annihilation lifetime spectroscopy ( PALS), Doppler broadening spectroscopy (DBS), positron annihilation lifetime calculation, and transmission electron microscope (TEM) are used to analyze and characterize the change of defect concentration, defect type and the micro-morphology in the Fe-9Cr alloy as a function of the annealing temperature. The experimental results showed that, a large number of vacancies and dislocations were found to exist in the untreated Fe-9Cr alloy. The monovacancy (186.2 ps) in the Fe-9Cr alloy migrated during annealing from room temperature to 573 K. The annealing temperature at 773 K produce aggregation of dislocations and the formation of dislocation networks, as well as their heterogeneous distribution. When the temperature is further increased to 1073 K, most of the vacancies and dislocations are recovered and a bcc-fcc phase transmition occurred in Fe-9Cr model alloy. The dislocation density is continuous decreased with the increase of annealing temperature, the recovery is obvious from 773 K annealing to 1073 K annealing in Fe-9Cr alloy. |
| 电子版国际标准刊号 | 1862-6319 |
| WOS关键词 | VACANCY-TYPE DEFECTS ; POSITRON-ANNIHILATION ; FE-CR ; ION IRRADIATION ; IRON ; DISLOCATIONS ; PRECIPITATION ; LIFETIME ; STATES ; NI |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000419754600001 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285526]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 通讯作者 | Cao XZ(曹兴忠) |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Lian XY,Cao XZ,Jin SX,et al. Evolution of Thermally-Induced Microstructural Defects in the Fe-9Cr Alloy[J]. PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE,2018,215(1):1700349. |
| APA | 连相宇.,曹兴忠.,靳硕学.,罗见兵.,Yu, RS.,...&Gong, YH.(2018).Evolution of Thermally-Induced Microstructural Defects in the Fe-9Cr Alloy.PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE,215(1),1700349. |
| MLA | 连相宇,et al."Evolution of Thermally-Induced Microstructural Defects in the Fe-9Cr Alloy".PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE 215.1(2018):1700349. |
入库方式： OAI收割
来源：高能物理研究所
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