Age hardening heat treatment behavior of as-cast Mg–Zn–Al alloys

Magnesium alloys have generated renewed interest as a light alloys; replacing some conventional structural materials for weight reduction in applications like aerospace, automotive and electronics industries. In interior components and powertrains, cast alloys are widely used and represent more tha...

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Autores principales:	Hiralal S. Patil, D. C. Patel
Formato:	article
Lenguaje:	EN
Publicado:	Gruppo Italiano Frattura 2021
Materias:	Magnesium alloy ZA85 DTA Solution treatment Ageing Microstructure Hardness Mechanical engineering and machinery TJ1-1570 Structural engineering (General) TA630-695
Acceso en línea:	https://doaj.org/article/f749086a5e464c19b02087bb73ef31f7
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spelling	oai:doaj.org-article:f749086a5e464c19b02087bb73ef31f72021-11-26T10:56:51ZAge hardening heat treatment behavior of as-cast Mg–Zn–Al alloys1971-8993https://doaj.org/article/f749086a5e464c19b02087bb73ef31f72021-06-01T00:00:00Zhttps://www.fracturae.com/index.php/fis/article/view/3045https://doaj.org/toc/1971-8993 Magnesium alloys have generated renewed interest as a light alloys; replacing some conventional structural materials for weight reduction in applications like aerospace, automotive and electronics industries. In interior components and powertrains, cast alloys are widely used and represent more than 99% of magnesium alloys used today, whereas only a few wrought products are used. Mostly in automotive applications, Mg-engine block can noticeably reduce the weight and consequently its fuel consumption and environmental impact. Due to solid-state precipitates, these alloys are strong in nature and are produced by an age-hardening heat treatment process. In the present work the age hardening behavior of the as cast Mg–Zn–Al alloys (ZA85 alloy) in the composition of 8 wt. %Zn, 5 wt. %Al has been investigated. Through the differential thermal analysis (DTA) studies, it has been found out that dissolution temperature of ternary eutectic precipitates is present in the alloy. Based on the DTA results, the as cast samples have been solutionised at 360 °C temperature for different intervals of time. Solutionising time has been optimized from the enthalpy values of un-dissolved precipitates. The solution treated samples have been then aged at temperature of 180° C for different time intervals. From the peak hardness values, the ageing conditions have been optimized. Hiralal S. PatilD. C. PatelGruppo Italiano FratturaarticleMagnesium alloy ZA85DTASolution treatmentAgeingMicrostructureHardnessMechanical engineering and machineryTJ1-1570Structural engineering (General)TA630-695ENFrattura ed Integrità Strutturale, Vol 15, Iss 57 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Magnesium alloy ZA85 DTA Solution treatment Ageing Microstructure Hardness Mechanical engineering and machinery TJ1-1570 Structural engineering (General) TA630-695
spellingShingle	Magnesium alloy ZA85 DTA Solution treatment Ageing Microstructure Hardness Mechanical engineering and machinery TJ1-1570 Structural engineering (General) TA630-695 Hiralal S. Patil D. C. Patel Age hardening heat treatment behavior of as-cast Mg–Zn–Al alloys
description	Magnesium alloys have generated renewed interest as a light alloys; replacing some conventional structural materials for weight reduction in applications like aerospace, automotive and electronics industries. In interior components and powertrains, cast alloys are widely used and represent more than 99% of magnesium alloys used today, whereas only a few wrought products are used. Mostly in automotive applications, Mg-engine block can noticeably reduce the weight and consequently its fuel consumption and environmental impact. Due to solid-state precipitates, these alloys are strong in nature and are produced by an age-hardening heat treatment process. In the present work the age hardening behavior of the as cast Mg–Zn–Al alloys (ZA85 alloy) in the composition of 8 wt. %Zn, 5 wt. %Al has been investigated. Through the differential thermal analysis (DTA) studies, it has been found out that dissolution temperature of ternary eutectic precipitates is present in the alloy. Based on the DTA results, the as cast samples have been solutionised at 360 °C temperature for different intervals of time. Solutionising time has been optimized from the enthalpy values of un-dissolved precipitates. The solution treated samples have been then aged at temperature of 180° C for different time intervals. From the peak hardness values, the ageing conditions have been optimized.
format	article
author	Hiralal S. Patil D. C. Patel
author_facet	Hiralal S. Patil D. C. Patel
author_sort	Hiralal S. Patil
title	Age hardening heat treatment behavior of as-cast Mg–Zn–Al alloys
title_short	Age hardening heat treatment behavior of as-cast Mg–Zn–Al alloys
title_full	Age hardening heat treatment behavior of as-cast Mg–Zn–Al alloys
title_fullStr	Age hardening heat treatment behavior of as-cast Mg–Zn–Al alloys
title_full_unstemmed	Age hardening heat treatment behavior of as-cast Mg–Zn–Al alloys
title_sort	age hardening heat treatment behavior of as-cast mg–zn–al alloys
publisher	Gruppo Italiano Frattura
publishDate	2021
url	https://doaj.org/article/f749086a5e464c19b02087bb73ef31f7
work_keys_str_mv	AT hiralalspatil agehardeningheattreatmentbehaviorofascastmgznalalloys AT dcpatel agehardeningheattreatmentbehaviorofascastmgznalalloys
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Age hardening heat treatment behavior of as-cast Mg–Zn–Al alloys

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