Precipitation behavior and precipitates characterization of Al-Zn-Mg-Cu alloy during the non-isothermal aging process
Year: 2024
Type: article
Abstract: In this work, the precipitation behavior and precipitates characterization of Al-Zn-Mg-Cu alloy during non-isothermal aging (NIA) process were investigated by transmission electron microscopy (TEM) and microhardness testing. The existence state of the overall precipitates in the alloy has been studied, and the evolution sequence can be expressed as: SSS→ GP II zones→ GPII zones and η′ precipitates→ η precipitates→ η precipitates and GPII zones→ η precipitates. The results show that the η series precipitates can provide support for the hardening of Al-Zn-Mg-Cu alloy, especially the GPII zones and η′ precipitates. Besides, some interesting phenomena were observed and explained, and a new type of η precipitate (η 14 ) was characterized. • A detailed study of the non-isothermal aging process of a novel Al-Zn-Mg-Cu alloy. • SSS.→ GP II zones→ η t '→ η'→ η→ {GPII zone, η′ and η} → η. • The orientation relationship of η 14 precipitates with Al matrix was characterized.
Source: Vacuum
Authors: Zhongwei Chen, Congcong Ren, Wei Le, Bo An
Language: English
Subfield: Aerospace Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,990
OpenAlex ID: W4405569248