Evolution of thermally-induced microstructural defects in the fe-9cr alloy
文献类型：期刊论文
| 作者 | Lian, Xiangyu1,2; Cao, Xingzhong2; Zhao, Yujie1; Jin, Shuoxue2; Luo, Jianbing1,2; Zhu, Te2; Gong, Yihao2; Wang, Baoyi2; Yu, Runsheng2 |
| 刊名 | Physica status solidi a-applications and materials science
 |
| 出版日期 | 2018 |
| 卷号 | 215期号:1页码:6 |
| ISSN号 | 1862-6300 |
| 关键词 | Defects Dislocation network Fe-9cr alloys Positron annihilation |
| DOI | 10.1002/pssa.201700349 |
| 通讯作者 | Cao, xingzhong(caoxzh@ihep.ac.cn) ; Zhao, yujie(jackzyj@ustc.edu.cn) |
| 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. |
| 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 |
| WOS类目 | Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| 语种 | 英语 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| WOS记录号 | WOS:000419754600001 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2177894 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Cao, Xingzhong; Zhao, Yujie |
| 作者单位 | 1.East China Univ Technol, Sch Nucl Sci & Engn, Nanchang 330013, Jiangxi, Peoples R China 2.Chinese Acad Sci, Inst High Energy Phys, Multidiscipline Res Ctr, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lian, Xiangyu,Cao, Xingzhong,Zhao, Yujie,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):6. |
| APA | Lian, Xiangyu.,Cao, Xingzhong.,Zhao, Yujie.,Jin, Shuoxue.,Luo, Jianbing.,...&Yu, Runsheng.(2018).Evolution of thermally-induced microstructural defects in the fe-9cr alloy.Physica status solidi a-applications and materials science,215(1),6. |
| MLA | Lian, Xiangyu,et al."Evolution of thermally-induced microstructural defects in the fe-9cr alloy".Physica status solidi a-applications and materials science 215.1(2018):6. |
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来源：高能物理研究所
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