in this article, failure and fracture mechanisms in an aluminum alloy (which has been used in diesel internal combustion engines), with and without ceramic thermal barrier coatings, have been investigated under isothermal and non-isothermal fatigue loadings. in this research, the base material is an aluminum-silicon-magnesium alloy and the thermal barrier coating includes a metallic bond coat l...

In this study the effect of Al–5Ti–1B grain refiner on the structural characteristics and wear properties of Al–12Zn–3Mg–2.5Cu alloy was investigated. The optimum amount for Ti containing grain refiners was selected as 2 wt.%. T6 heat treatment, (i.e. heating at 460 °C for 1 h before water quenching to room temperature and then aging at 120 °C for 24 h) was applied for all specimens before wear...

Water-soluble metal working fluids are used for processing of aluminum alloy materials. This short article describes properties of new additives in water-soluble metal working fluids for aluminum alloy materials. Many half esters or diesters were prepared from the reactions of higher alcohols with acid anhydrides. Interestingly, diesters of PTMG (tetrahydrofuran oligomer, MW = 650 and 1000) and...

To realize the high-efficiency and high-performance manufacture of complex high-web panels, this paper introduced electric pulse current (EPC) into the stress relaxation aging forming process of 2219 aluminum alloy and systematically studied the effects of EPC, stress, and aging time upon the microstructure and properties of 2219 aluminum alloy. It is discovered that: (a) EPC greatly enhanced t...

Aluminium base alloy (Al-Cu-Si) was reinforced with silicon carbide (SiC) particles, in various percentage compositions from 0-20 wt%. Silicon carbide particle size of 20µm was selected. The molten slurry of SiC reinforced base aluminium metal was casted through green and dry sand casting methods and solidification process was carried out under ambient conditions. A selected population...

Abstract This paper presents research into the creation of refill friction stir spot welding (RFSSW) single-lap joints 6082-T6 aluminum alloy and roll-bonded AlCu bimetallic sheet. The latter sheet comprises EN AW-1050A electrolytic copper M1E in Z6 temper condition (after rolling) with a 1:1 ratio Cu:Al layers. parameters involved variable plunge depth time. mechanical properties were determin...

The formation of low surface energy hybrid organic-inorganic micro-nanostructured zinc stearate electrodeposit transformed the anodic aluminum oxide (AAO) surface to superhydrophobic, having a water contact angle of 160 ̋. The corrosion current densities of the anodized and aluminum alloy surfaces are found to be 200 and 400 nA/cm2, respectively. In comparison, superhydrophobic anodic aluminum o...

Lightweight design using high‐strength aluminum alloys has gained importance due to the continuing need for weight reduction and increasing crash safety requirements in automotive industry. There are various manufacturing processes available processing alloys. Herein, production of parts by roll forming stamping based on example an AA7075‐T6 hat profile is compared. Roll represents a continuous...

The effects of dissolution the η′ phase by solution treatment on mechanical properties A7075-T6 alloy were investigated. Immediately after T6 sheet at 450 oC or higher, elongation significantly increased and occurred. is main hardening phase. After natural-aging, GPI, which coherent with aluminum matrix, was formed strength increased. When bake natural-aging performed, yield slightly due to par...

Since their development, third-generation aluminum–lithium alloys have been used in aeronautical and other applications due to good properties, replacing conventional Al-Cu Al-Zn resulting an increase payload fuel efficiency. The aim of this work was investigate the influence different heat treatments on electrochemical corrosion behavior AA2055 AA2024 presence three electrolytes at room temper...