Study of age hardening in a Mg-2.2 wt%Nd alloy by in situ synchrotron X-ray diffraction and mechanical tests

doi:10.1016/j.msea.2017.10.011

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	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
刊名	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
	2017
卷号	708 期号:-页码:319-328
关键词	Mg-re Alloys Magnesium Alloys Precipitate Morphology Phase Microstructure Fabrication Simulation Evolution
ISSN号	0921-5093
DOI	10.1016/j.msea.2017.10.011
文献子类	期刊论文
英文摘要	Microstructure 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.
WOS关键词	MG-RE ALLOYS ; MAGNESIUM ALLOYS ; PRECIPITATE MORPHOLOGY ; PHASE ; MICROSTRUCTURE ; FABRICATION ; SIMULATION ; EVOLUTION
语种	英语
WOS记录号	WOS:000415770100033
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/28835]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
推荐引用方式 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.