journal article·2019-03-04

Effect of heat treatment on the microstructure and mechanical properties of spray-formed 7055 aluminium alloy

Xiaojie Zhao, Changzeng Fan, Ronghua Yu, Pengbin Yuan

Philosophical Magazine Letters· Volume 99· Issue 3
Publisher page

Abstract

7055 Al alloys samples were prepared by spray forming and hot-extrusion followed by two different aging treatment procedures. Their different distributions of GP zones, and nanoscale precipitates η′ (MgZn) and η (MgZn2) are extensively investigated by transmission electron microscope (TEM). The mechanical properties, including tensile strength, Vickers hardness and elongation of both aged 7055 Al alloys, have also been measured and analysed. It is found that T6 and T76 aging treatment results in quite different microstructure and mechanical properties. The outstanding performance of the 7055 Al alloys after T6 aging treatment is attributed to nanoscale semi-coherent dispersion precipitates.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Aluminum Alloy Microstructure Properties · Microstructure and mechanical properties · Aluminum Alloys Composites Properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, People's Republic of China

Shanghai Hilong Petroleum Tubular Goods Research Institute, Shanghai, People's Republic of China

Funding

College Science & Technology of Hebei Province

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