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The influence of temperature on twinning behavior of a Mg-Gd-Y alloy during hot compression
Lu, S. H.1,2; Wu, D.1; Chen, R. S.1; Han, En-hou1
Corresponding AuthorWu, D.(dwu@imr.ac.cn) ; Chen, R. S.(rschen@imr.ac.cn)
2018-09-26
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume735Pages:173-181
AbstractThe microstructure evolution and plastic deformation mechanism of Mg-6.58Gd-5.7Y-0.55Zr alloy were investigated by uniaxial compression at temperatures ranging from 300 degrees C to 450 degrees C and with an initial strain rate of 0.1 s(-1), and characterized by optical microscope (OM), scanning electron microscope (SEM) and electron back-scattering diffraction (EBSD). The effect of temperature on twinning behavior was focused in detail. At relatively low temperature, such as 300 degrees C, multiple twin variant pairs can be activated in one grain, and the twining process was dominated by nucleation. However, at high temperature, most of the twins activated in one grain belong to the single twin variant pair with the highest Schmid Factor (SF), and twin growth seems to represent the twinning behavior at 450 degrees C. The twinning behavior of Mg-6.58Gd-5.7Y-0.55Zr alloy at temperatures ranging from 300 degrees C to 450 degrees C basically follows Schmid law, and can be well understood in terms of variation of stress state and activated deformation modes with compression temperature.
KeywordMg-Gd-Y alloy Hot compression Twin variant selection Schmid factor
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China (NSFC) ; National Science and Technology Major Project of China ; National Basic Research Program of China (973 Program)
DOI10.1016/j.msea.2018.08.004
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2016YFB0301104] ; National Natural Science Foundation of China (NSFC)[51531002] ; National Natural Science Foundation of China (NSFC)[<LF> 51301173<LF>51601193 <LF>51701218] ; National Science and Technology Major Project of China[2017ZX04014001] ; National Basic Research Program of China (973 Program)[2013CB632202]
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000447117300020
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/129761
Collection中国科学院金属研究所
Corresponding AuthorWu, D.; Chen, R. S.
Affiliation1.Chinese Acad Sci, Inst Met Res, Grp Magnesium Alloys & Their Applicat, 62 Wencui Rd, Shenyang 110016, Liaoning, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Lu, S. H.,Wu, D.,Chen, R. S.,et al. The influence of temperature on twinning behavior of a Mg-Gd-Y alloy during hot compression[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2018,735:173-181.
APA Lu, S. H.,Wu, D.,Chen, R. S.,&Han, En-hou.(2018).The influence of temperature on twinning behavior of a Mg-Gd-Y alloy during hot compression.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,735,173-181.
MLA Lu, S. H.,et al."The influence of temperature on twinning behavior of a Mg-Gd-Y alloy during hot compression".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 735(2018):173-181.
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