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Non-destructive identification of unknown minor phases in polycrystalline bulk alloys using three-dimensional X-ray diffraction
Yang, YM; Xu, L; Wang, YD; Du, GH; Yang, S; Xiao, TQ
2017
Source PublicationMATERIALS CHARACTERIZATION
ISSN1044-5803
Volume124Pages:206-214
Subtype期刊论文
AbstractMinor phases make considerable contributions to the mechanical and physical properties of metals and alloys. Unfortunately, it is difficult to identify unknown minor phases in a bulk polycrystalline material using conventional metallographic methods. Here, a non-destructive method based on three-dimensional X-ray diffraction (3DXRD) is developed to solve this problem. Simulation results demonstrate that this method is simultaneously able to identify minor phase grains and reveal their positions, orientations and sizes within bulk alloys. According to systematic simulations, the 3DXRD method is practicable for an extensive sample set, including polycrystalline alloys with hexagonal, orthorhombic and cubic minor phases. Experiments were also conducted to confirm the simulation results. The results for a bulk sample of aluminum alloy AA6061 show that the crystal grains of an unexpected gamma-Fe (austenite) phase can be identified, three-dimensionally and nondestructively. Therefore, we conclude that the 3DXRD method is a powerful tool for the identification of unknown minor phases in bulk alloys belonging to a variety of crystal systems. This method also has the potential to be used for in situ observations of the effects of minor phases on the crystallographic behaviors of alloys. (C) 2017 Elsevier Inc. All rights reserved.
KeywordUnknown Minor Phase Non-destructive Identification 3dxrd
DOI10.1016/j.matchar.2016.12.025
Indexed BySCI
Language英语
WOS IDWOS:000394061900025
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/27395
Collection中科院上海应用物理研究所2011-2018年
Recommended Citation
GB/T 7714
Yang, YM,Xu, L,Wang, YD,et al. Non-destructive identification of unknown minor phases in polycrystalline bulk alloys using three-dimensional X-ray diffraction[J]. MATERIALS CHARACTERIZATION,2017,124:206-214.
APA Yang, YM,Xu, L,Wang, YD,Du, GH,Yang, S,&Xiao, TQ.(2017).Non-destructive identification of unknown minor phases in polycrystalline bulk alloys using three-dimensional X-ray diffraction.MATERIALS CHARACTERIZATION,124,206-214.
MLA Yang, YM,et al."Non-destructive identification of unknown minor phases in polycrystalline bulk alloys using three-dimensional X-ray diffraction".MATERIALS CHARACTERIZATION 124(2017):206-214.
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