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Evolution of Thermally-Induced Microstructural Defects in the Fe-9Cr Alloy
Lian XY(连相宇); Cao XZ(曹兴忠); Jin SX(靳硕学); Luo JB(罗见兵); Zhu T(朱特); Gong YH(龚毅豪); Wang BY(王宝义); Yu RS(于润升); Lian, XY; Cao, XZ; Zhao, YJ; Jin, SX; Luo, JB; Zhu, T; Gong, YH; Wang, BY; Yu, RS
2018
Source PublicationPHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
ISSN1862-6300
EISSN1862-6319
Volume215Issue:1Pages:1700349
SubtypeArticle
AbstractThe 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.
Keyworddefects dislocation network Fe-9Cr alloys positron annihilation
DOI10.1002/pssa.201700349
WOS KeywordVACANCY-TYPE DEFECTS ; POSITRON-ANNIHILATION ; FE-CR ; ION IRRADIATION ; IRON ; DISLOCATIONS ; PRECIPITATION ; LIFETIME ; STATES ; NI
Indexed BySCI ; ADS ; EI
Language英语
WOS Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000419754600001
EI Accession Number20180204645009
ADS Bibcode2018PSSAR.21500349L
ADS URLhttps://ui.adsabs.harvard.edu/abs/2018PSSAR.21500349L
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2018PSSAR.21500349L/citations
Citation statistics
Cited Times:1 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/285526
Collection多学科研究中心
Corresponding AuthorCao XZ(曹兴忠)
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Corresponding Author AffilicationInstitute of High Energy
Recommended Citation
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.,朱特.,...&Yu, RS.(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.
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