Experimental Investigation and Thermodynamic Verification for the Phase Relation around the ε-Mg<sub>23</sub> (Al, Zn)<sub>30</sub> Intermetallic Compound in the Mg-Zn-Al System

The appearance of the ε phase during the welding process can severely weaken the welding strength of dissimilar metals of Mg-Zn-Al alloy systems. An understanding of the accurate phase diagram, especially the equilibrium phase relation around the ε phase, is thus of particular importance. However, t...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Yan Zheng, Jiaxing Sun, Kaiming Cheng, Jin Wang, Chengwei Zhan, Jingrui Zhao, Xitao Wang, Shouqiu Tang, Jixue Zhou, Lijun Zhang, Yong Du
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	Mg-Zn-Al alloy ε phase phase equilibrium calculation of phase diagram (CALPHAD) diffusion Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/5881e04052a341568b0490926c89df56
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:5881e04052a341568b0490926c89df56
record_format	dspace
spelling	oai:doaj.org-article:5881e04052a341568b0490926c89df562021-11-25T18:14:29ZExperimental Investigation and Thermodynamic Verification for the Phase Relation around the ε-Mg<sub>23</sub> (Al, Zn)<sub>30</sub> Intermetallic Compound in the Mg-Zn-Al System10.3390/ma142268921996-1944https://doaj.org/article/5881e04052a341568b0490926c89df562021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/6892https://doaj.org/toc/1996-1944The appearance of the ε phase during the welding process can severely weaken the welding strength of dissimilar metals of Mg-Zn-Al alloy systems. An understanding of the accurate phase diagram, especially the equilibrium phase relation around the ε phase, is thus of particular importance. However, the phase interrelation near the <i>ε</i>-Mg<sub>23</sub>(Al, Zn)<sub>30</sub> phase has not yet been fully studied. In this work, the local phase diagrams of the ε phase and its surrounding phases in the Mg-Zn-Al system are systematically determined by experimental investigation and thermodynamic verification. Five Mg-Zn-Al alloys and one diffusion couple were fabricated and analyzed to get accurate phase constituents and relationships adjacent to ε phase. The current experimental data obtained from Scanning Electron Microscope (SEM), X-ray diffraction (XRD), Differential Scanning Calorimetry (DSC), and Electron Probe Micro Analysis (EPMA) were further compared with the thermodynamically computed phase relations around ε phase for verification, showing good agreements. Several important conclusions are drawn based on current experimental work, which can provide supporting information for the follow-up studies on ε phase in the Mg-Zn-Al alloy systems.Yan ZhengJiaxing SunKaiming ChengJin WangChengwei ZhanJingrui ZhaoXitao WangShouqiu TangJixue ZhouLijun ZhangYong DuMDPI AGarticleMg-Zn-Al alloyε phasephase equilibriumcalculation of phase diagram (CALPHAD)diffusionTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6892, p 6892 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Mg-Zn-Al alloy ε phase phase equilibrium calculation of phase diagram (CALPHAD) diffusion Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	Mg-Zn-Al alloy ε phase phase equilibrium calculation of phase diagram (CALPHAD) diffusion Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Yan Zheng Jiaxing Sun Kaiming Cheng Jin Wang Chengwei Zhan Jingrui Zhao Xitao Wang Shouqiu Tang Jixue Zhou Lijun Zhang Yong Du Experimental Investigation and Thermodynamic Verification for the Phase Relation around the ε-Mg<sub>23</sub> (Al, Zn)<sub>30</sub> Intermetallic Compound in the Mg-Zn-Al System
description	The appearance of the ε phase during the welding process can severely weaken the welding strength of dissimilar metals of Mg-Zn-Al alloy systems. An understanding of the accurate phase diagram, especially the equilibrium phase relation around the ε phase, is thus of particular importance. However, the phase interrelation near the <i>ε</i>-Mg<sub>23</sub>(Al, Zn)<sub>30</sub> phase has not yet been fully studied. In this work, the local phase diagrams of the ε phase and its surrounding phases in the Mg-Zn-Al system are systematically determined by experimental investigation and thermodynamic verification. Five Mg-Zn-Al alloys and one diffusion couple were fabricated and analyzed to get accurate phase constituents and relationships adjacent to ε phase. The current experimental data obtained from Scanning Electron Microscope (SEM), X-ray diffraction (XRD), Differential Scanning Calorimetry (DSC), and Electron Probe Micro Analysis (EPMA) were further compared with the thermodynamically computed phase relations around ε phase for verification, showing good agreements. Several important conclusions are drawn based on current experimental work, which can provide supporting information for the follow-up studies on ε phase in the Mg-Zn-Al alloy systems.
format	article
author	Yan Zheng Jiaxing Sun Kaiming Cheng Jin Wang Chengwei Zhan Jingrui Zhao Xitao Wang Shouqiu Tang Jixue Zhou Lijun Zhang Yong Du
author_facet	Yan Zheng Jiaxing Sun Kaiming Cheng Jin Wang Chengwei Zhan Jingrui Zhao Xitao Wang Shouqiu Tang Jixue Zhou Lijun Zhang Yong Du
author_sort	Yan Zheng
title	Experimental Investigation and Thermodynamic Verification for the Phase Relation around the ε-Mg<sub>23</sub> (Al, Zn)<sub>30</sub> Intermetallic Compound in the Mg-Zn-Al System
title_short	Experimental Investigation and Thermodynamic Verification for the Phase Relation around the ε-Mg<sub>23</sub> (Al, Zn)<sub>30</sub> Intermetallic Compound in the Mg-Zn-Al System
title_full	Experimental Investigation and Thermodynamic Verification for the Phase Relation around the ε-Mg<sub>23</sub> (Al, Zn)<sub>30</sub> Intermetallic Compound in the Mg-Zn-Al System
title_fullStr	Experimental Investigation and Thermodynamic Verification for the Phase Relation around the ε-Mg<sub>23</sub> (Al, Zn)<sub>30</sub> Intermetallic Compound in the Mg-Zn-Al System
title_full_unstemmed	Experimental Investigation and Thermodynamic Verification for the Phase Relation around the ε-Mg<sub>23</sub> (Al, Zn)<sub>30</sub> Intermetallic Compound in the Mg-Zn-Al System
title_sort	experimental investigation and thermodynamic verification for the phase relation around the ε-mg<sub>23</sub> (al, zn)<sub>30</sub> intermetallic compound in the mg-zn-al system
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/5881e04052a341568b0490926c89df56
work_keys_str_mv	AT yanzheng experimentalinvestigationandthermodynamicverificationforthephaserelationaroundtheemgsub23subalznsub30subintermetalliccompoundinthemgznalsystem AT jiaxingsun experimentalinvestigationandthermodynamicverificationforthephaserelationaroundtheemgsub23subalznsub30subintermetalliccompoundinthemgznalsystem AT kaimingcheng experimentalinvestigationandthermodynamicverificationforthephaserelationaroundtheemgsub23subalznsub30subintermetalliccompoundinthemgznalsystem AT jinwang experimentalinvestigationandthermodynamicverificationforthephaserelationaroundtheemgsub23subalznsub30subintermetalliccompoundinthemgznalsystem AT chengweizhan experimentalinvestigationandthermodynamicverificationforthephaserelationaroundtheemgsub23subalznsub30subintermetalliccompoundinthemgznalsystem AT jingruizhao experimentalinvestigationandthermodynamicverificationforthephaserelationaroundtheemgsub23subalznsub30subintermetalliccompoundinthemgznalsystem AT xitaowang experimentalinvestigationandthermodynamicverificationforthephaserelationaroundtheemgsub23subalznsub30subintermetalliccompoundinthemgznalsystem AT shouqiutang experimentalinvestigationandthermodynamicverificationforthephaserelationaroundtheemgsub23subalznsub30subintermetalliccompoundinthemgznalsystem AT jixuezhou experimentalinvestigationandthermodynamicverificationforthephaserelationaroundtheemgsub23subalznsub30subintermetalliccompoundinthemgznalsystem AT lijunzhang experimentalinvestigationandthermodynamicverificationforthephaserelationaroundtheemgsub23subalznsub30subintermetalliccompoundinthemgznalsystem AT yongdu experimentalinvestigationandthermodynamicverificationforthephaserelationaroundtheemgsub23subalznsub30subintermetalliccompoundinthemgznalsystem
_version_	1718411438469414912

Experimental Investigation and Thermodynamic Verification for the Phase Relation around the ε-Mg<sub>23</sub> (Al, Zn)<sub>30</sub> Intermetallic Compound in the Mg-Zn-Al System

Ejemplares similares