Ductile rupture in metals is a phenomenon that affects a wide range of applications from
forming of automotive body panels to failure of pressure vessels. The incipient stage …

Most industrial alloys contain a matrix phase and dispersed second-phase particles. Several
thermomechanical processing (TMP) steps are usually needed to produce a final product …

7XXX series aluminum alloys (Al 7XXX alloys) are widely used in bearing components, such
as aircraft frame, spars and stringers, for their high specific strength, high specific stiffness …

For most safety-critical applications, the achievement of both high strength and high
toughness is one of the key requirements for structural materials. However, strength and …

Abstract An Al-Zn-Mg-Cu alloy with high zinc content was successfully produced by selective
laser melting (SLM). A small amount of discontinuous η particles precipitates into the inter …

This paper takes the recycled 7075 aluminum alloy as the object to study its smelting,
extrusion and heat treatment processes. The composition, microstructure, mechanical …

Compared to most thermomechanical processing methods, friction stir welding (FSW) is a
recent technique which has not yet reached full maturity. Nevertheless, owing to multiple …

In ultra-high strength Al-Zn-Mg-Cu alloys, traditional heat treatments such as peak aging,
two-stage aging and retrogression and re-aging cannot perfectly balance the relationship …

The size, distribution and chemical composition of grain boundary η-phase precipitates
(GBPs) and micro-segregation present in thick plate (140 mm) 7xxx Al alloys has been …

The effect of pre-aging treatment on the bake-hardening response of an Al-Zn-Mg-Cu alloy
was investigated. It was determined that pre-aging immediately after quenching is an …