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Effect of Hydrostatic Pressure on LPSO Kinking and Microstructure Evolution of Mg-11Gd-4Y-2Zn-0.5Zr Alloy
Zheng, Ce1,2; Chen, Shuai-Feng1,3,4; Wang, Rui-Xue1; Zhang, Shi-Hong1; Cheng, Ming1
Corresponding AuthorCheng, Ming(mcheng@imr.ac.cn)
2020-08-14
Source PublicationACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN1006-7191
Pages17
AbstractTwo different kinds of hot compressions, namely normal-compression and can-compression, were performed on the Mg-11Gd-4Y-2Zn-0.5Zr alloy, featured with long period stacking ordered (LPSO) phase. The kinking behavior of LPSO phase and microstructure evolution was investigated to clarify the effect of levels of imposed hydrostatic pressure. The results suggest that the LPSO phases including both the intragranular 14H-LPSO phase and intergranular 18R-LPSO phase suffer severe kinking behavior under higher hydrostatic pressure induced by can-compression, which is firstly characterized with more kinking times and smaller relative kinking width. The main reason for such enhanced LPSO kinking during can-compression may be mainly ascribed to the higher dislocation density under a higher level of hydrostatic pressure. Meanwhile, a competitive relationship between the kink behaviors of intergranular 18R-LPSO phase and intragranular 14H-LPSO phase was observed. That is, the intergranular 18R-LPSO phase only kinks obviously on the condition that the surrounded intragranular 14H-LPSO phase scarcely kinks. In contrast to the distinctive kinking of LPSO phase, the dynamic recrystallization (DRX) mechanism shows less dependence on the hydrostatic pressure. Resultantly, similar DRX fractions and crystallographic texture were attained for two compression processes owing to the similar operation of deformation mode.
KeywordMagnesium alloy Hydrostatic pressure Long period stacking ordered (LPSO) phase Kinking Dynamic recrystallization
Funding OrganizationNational Natural Science Foundation of China
DOI10.1007/s40195-020-01120-1
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51305188]
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000559682200006
PublisherCHINESE ACAD SCIENCES, INST METAL RESEARCH
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/140217
Collection中国科学院金属研究所
Corresponding AuthorCheng, Ming
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Seoul Natl Univ, Dept Mat Sci & Engn, Seoul 08826, South Korea
4.Seoul Natl Univ, Res Inst Adv Mat RIAM, Seoul 08826, South Korea
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Zheng, Ce,Chen, Shuai-Feng,Wang, Rui-Xue,et al. Effect of Hydrostatic Pressure on LPSO Kinking and Microstructure Evolution of Mg-11Gd-4Y-2Zn-0.5Zr Alloy[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2020:17.
APA Zheng, Ce,Chen, Shuai-Feng,Wang, Rui-Xue,Zhang, Shi-Hong,&Cheng, Ming.(2020).Effect of Hydrostatic Pressure on LPSO Kinking and Microstructure Evolution of Mg-11Gd-4Y-2Zn-0.5Zr Alloy.ACTA METALLURGICA SINICA-ENGLISH LETTERS,17.
MLA Zheng, Ce,et al."Effect of Hydrostatic Pressure on LPSO Kinking and Microstructure Evolution of Mg-11Gd-4Y-2Zn-0.5Zr Alloy".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2020):17.
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