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Study of age hardening in a Mg-2.2 wt%Nd alloy by in situ synchrotron X-ray diffraction and mechanical tests
Zhou, BJ; Wang, LY; Chen, B; Jia, YW; Wen, W; Li, DJ; Shu, D; Jin, PP; Zeng, XQ; Ding, WJ
2017
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume708Issue:-Pages:319-328
Subtype期刊论文
AbstractMicrostructure evolution of a supersaturated solid solution Mg-2.2 wt%Nd alloy during aging at 240 degrees C for 6 h (stage I), at 295 degrees C for 3 h (stage II), and finally at 320 degrees C for 1 h (stage III) was studied by in situ synchrotron X-Ray diffraction. In stage I, diffraction from beta(1) (Mg3Nd, FCC) precipitates was observed after similar to 15 min. Evolution of the volume, size, and aspect ratio of beta(1) with the aging time were estimated from peak intensity and peak width analysis. In stage II, diffraction from beta (Mg12Nd, tetragonal) precipitates was observed after similar to 36 min while beta(1) remained in the material. In stage III, the volume of h reduced substantially in relative to beta. The identified precipitation sequence from the in situ aging experiment is supported by ex situ electron microscopy observations. beta', which had not been detected by synchrotron X-rays, was additionally found using transmission electron microscopy in the material by the end of aging stage I. Tension and hardness tests using specimens with different aging conditions were further performed to understand how different precipitates affect the strength and ductility of the Mg-Nd alloy.
KeywordMg-re Alloys Magnesium Alloys Precipitate Morphology Phase Microstructure Fabrication Simulation Evolution
DOI10.1016/j.msea.2017.10.011
WOS KeywordMG-RE ALLOYS ; MAGNESIUM ALLOYS ; PRECIPITATE MORPHOLOGY ; PHASE ; MICROSTRUCTURE ; FABRICATION ; SIMULATION ; EVOLUTION
Indexed BySCI
Language英语
WOS IDWOS:000415770100033
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/28835
Collection中科院上海应用物理研究所2011-2018年
Recommended Citation
GB/T 7714
Zhou, BJ,Wang, LY,Chen, B,et al. Study of age hardening in a Mg-2.2 wt%Nd alloy by in situ synchrotron X-ray diffraction and mechanical tests[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2017,708(-):319-328.
APA Zhou, BJ.,Wang, LY.,Chen, B.,Jia, YW.,Wen, W.,...&Ding, WJ.(2017).Study of age hardening in a Mg-2.2 wt%Nd alloy by in situ synchrotron X-ray diffraction and mechanical tests.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,708(-),319-328.
MLA Zhou, BJ,et al."Study of age hardening in a Mg-2.2 wt%Nd alloy by in situ synchrotron X-ray diffraction and mechanical tests".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 708.-(2017):319-328.
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