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Journal of Materials Engineering and Performance
Erschienen in: Journal of Materials Engineering and Performance 3/2022

25.10.2021

Characterizing Microstructure Evolution and Kinetics of a Spray Formed Ultrahigh Strength Aluminum Alloy during Isothermal Aging

verfasst von: Xiong Liu, Xiangdong Wang, Jian Chen, Weiyi Wang, Qinglin Pan

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 3/2022

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Abstract

To better understand microstructure evolution during thermal mechanical processes, electrical conductivity tests were introduced to evaluate microstructure change in a spray formed ultra-high strength aluminum alloy. The results showed that porosity significantly influenced electrical conductivity in as-deposited state, and dissolution of alloying elements was the main factor for the variation during heat treatments. Microstructure observations revealed that porosity closure led to the increase in electrical conductivity after hot extrusion. The depletion of these atoms from Al matrix through precipitation nucleation, growth and coarsen contributed to the increase in electrical conductivity during aging treatments. Each contribution of microstructure matched well with Matthiessen rule.
Vorheriger Artikel Comparative Study of Solution Heat Treatment of IN738LC Superalloy in Conventional Conditions and Salt Bath
Nächster Artikel Precipitation Behavior and Strengthening Mechanism of Extruded 2196 Al-Cu-Li Alloy Plate during Multi-Step Age-Hardening Treatment

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Metadaten
Titel
Characterizing Microstructure Evolution and Kinetics of a Spray Formed Ultrahigh Strength Aluminum Alloy during Isothermal Aging
verfasst von
Xiong Liu
Xiangdong Wang
Jian Chen
Weiyi Wang
Qinglin Pan
Publikationsdatum
25.10.2021
Verlag
Springer US
Erschienen in
Journal of Materials Engineering and Performance / Ausgabe 3/2022
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI
https://doi.org/10.1007/s11665-021-06349-0

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