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Portevin-Le Chatelier effect in Al-Zn-Mg-Cu-Zr aluminum alloy
Alternative TitlePortevin-Le Chatelier effect in Al-Zn-Mg-Cu-Zr aluminum alloy
Chen Junzhou1; Zhen Liang1; Fan Liwei3; Yang Shoujie2; Dai Shenglong2; Shao Wenzhu1
2009
Source PublicationTRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN1003-6326
Volume19Issue:5Pages:1071-1075
AbstractPortevin-Le Chatelier (PLC) effect in a severely cold-rolled Al-Zn-Mg-Cu-Zr aluminum alloy (AA7055 type) plate before and after annealing was investigated. The results show that the sample annealed at 300 degrees C undergoes PLC effect, whereas the PLC effect is not observed in the deformed sample or the samples annealed at 110 degrees C or 200 degrees C. The main precipitates in the sample annealed at 300 degrees C are the coarsened eta phases, while a mixture of small eta' phases and eta phases dominates in the sample annealed at 200 degrees C. In the deformed sample and sample annealed at 110 degrees C, GP zone are the main precipitates. The different flow behaviors are ascribed to the type of precipitates as well as the dislocation density differences.
Other AbstractPortevin-Le Chatelier (PLC) effect in a severely cold-rolled Al-Zn-Mg-Cu-Zr aluminum alloy (AA7055 type) plate before and after annealing was investigated. The results show that the sample annealed at 300 ℃ undergoes PLC effect, whereas the PLC effect is not observed in the deformed sample or the samples annealed at 110 ℃ or 200 ℃. The main precipitates in the sample annealed at 300 ℃ are the coarsened η phases, while a mixture of small η′ phases and η phases dominates in the sample annealed at 200 ℃. In the deformed sample and sample annealed at 110 ℃, GP zone are the main precipitates. The different flow behaviors are ascribed to the type of precipitates as well as the dislocation density differences.
KeywordSERRATED FLOW SUBSTITUTIONAL ALLOYS DEFORMATION BANDS PRECIPITATION aluminum alloy Portevin-Le Chatelier effect precipitation dislocation
Indexed ByCSCD
Language英语
CSCD IDCSCD:3712089
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/150561
Collection中国科学院金属研究所
Affiliation1.Harbin Institute Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China
2.Beijing Institute Aeronaut Mat, Beijing 100095, Peoples R China
3.中国科学院金属研究所
Recommended Citation
GB/T 7714
Chen Junzhou,Zhen Liang,Fan Liwei,et al. Portevin-Le Chatelier effect in Al-Zn-Mg-Cu-Zr aluminum alloy[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2009,19(5):1071-1075.
APA Chen Junzhou,Zhen Liang,Fan Liwei,Yang Shoujie,Dai Shenglong,&Shao Wenzhu.(2009).Portevin-Le Chatelier effect in Al-Zn-Mg-Cu-Zr aluminum alloy.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,19(5),1071-1075.
MLA Chen Junzhou,et al."Portevin-Le Chatelier effect in Al-Zn-Mg-Cu-Zr aluminum alloy".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 19.5(2009):1071-1075.
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