ScholarLens Back to search
2006•Rejiagong gongyiRequires access

Effects of Ni on Hardness and Microstructure of Ultra High Strength Aluminum Alloy Al-Zn-Mg-Cu-RE

Chen Wu

Open publisher page 2 citations

Abstract

The microstructure and hardness of RE-grain-fined Al-Zn-Mg-Cu Aluminum alloy were researched and analyzed by means of optical microscope?hardness test?XRD?SEM after nickel was added in the alloy.The results show that the alloy's hardness as-cast increases with the increase of nickel content,and the maximum hardness after T5 heat treatment is 138HB when nickel content is 0.25%.Phase Al9FeNi and Al7Cu4Ni are found in the grain boundaries,which acts on precipitation hardening in aging process.The nickel content in Al-Zn-Mg-Cu aluminum alloy should be limited to around 0.25% because more Ni has the worse effect on the property of the alloy.

About this research paper

What this paper is about

The microstructure and hardness of RE-grain-fined Al-Zn-Mg-Cu Aluminum alloy were researched and analyzed by means of optical microscope?hardness test?XRD?SEM after nickel was added in the alloy.The results show that the alloy's hardness as-cast increases with the increase of nickel content,and the maximum hardness after T5 heat treatment is 138HB when nickel content is 0.25%.Phase Al9FeNi and Al7Cu4Ni are found in the grain boundaries,which acts on precipitation hardening in aging process.The nickel content in Al-Zn-Mg-Cu aluminum alloy should be limited to around 0.25% because more Ni has the worse effect on the property of the alloy.

Why it matters

OpenAlex reports 2 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

The microstructure and hardness of RE-grain-fined Al-Zn-Mg-Cu Aluminum alloy were researched and analyzed by means of optical microscope?hardness test?XRD?SEM after nickel was added in the alloy.The results show that the alloy's hardness as-cast increases with the increase of nickel content,and the maximum hardness after T5 heat treatment is 138HB when nickel content is 0.25%.Phase Al9FeNi and Al7Cu4Ni are found in the grain boundaries,which acts on precipitation hardening in aging process.The nickel content in Al-Zn-Mg-Cu aluminum alloy should be limited to around 0.25% because more Ni has the worse effect on the property of the alloy.

Key concepts: Alloy, Materials science, Microstructure, Metallurgy, 6111 aluminium alloy, Nickel, Precipitation hardening, Aluminium

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Effects of Ni on Hardness and Microstructure of Ultra High Strength Aluminum Alloy Al-Zn-Mg-Cu-RE — Research Paper | ScholarLens