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The Basics of Nonferrous Metallurgy

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Aluminium – Copper Alloys

Copper has been the most common alloying element since the early days of the aluminum industry, with numerous copper-dominant aluminum alloys developed for various applications. These alloys typically fall into distinct compositional groups containing 4-14% copper, often with additional elements like magnesium, silicon, manganese, and nickel.

Aluminum Alloy 7075: The Relation between Microstructure and Toughness

The application of high strength aluminum alloys, particularly the Al-Zn-Mg-Cu-based 7000-series alloys, could be extended if it were not for their relatively low fracture toughness, and considerable research has been conducted on the factors affecting toughness of these alloys.
It is well established that one major variable is strength, since as strength is increased there is an accompanying decrease in toughness. There is also evidence that fracture is sensitive to heat treatment, and particularly that the toughness associated with an underaged structure is superior to that of an overaged structure having the same yield stress.

Aluminum Alloys: Terms, Definitions and Products

Aluminum alloys have numerous technical advantages that made them one of the dominant structural material families of the 20th century. Aluminum has low density (2.71 g/cm³) compared with competitive metallic alloy systems. It also has good inherent corrosion resistance because of the continuous, protective oxide film that forms very quickly in the air, and good workability that enables aluminum and its alloys to be economically rolled, extruded, or forged into useful shapes. In this article standardized terms and products made from aluminum alloys are described.

Aluminum and Aluminum Alloys

In high-purity form aluminum is soft and ductile. Most commercial uses, however, require greater strength than pure aluminum affords. This is achieved in aluminum first by the addition of other elements to produce various alloys, which singly or in combination impart strength to the metal. Further strengthening is possible by means that classify the alloys roughly into two categories, non-heat-treatable and heat-treatable ...

Aluminum and Aluminum Alloys Casting Problems

Aluminum castings have played an integral role in the growth of the aluminum industry since its inception in the late 19th century. The first commercial aluminum products were castings, such as cooking utensils and decorative parts, which exploited the novelty and utility of the new metal. Those early applications rapidly expanded to address the requirements of a wide range of engineering specifications.
Alloy development and characterization of physical and mechanical characteristics provided the basis for new product development through the decades that followed.

Aluminum Bronzes: Part One

Aluminum bronze is a type of bronze in which aluminum is the main alloying metal added to copper. A variety of aluminum bronzes of differing compositions have found industrial use, with most ranging from 5% to 11% aluminum by weight, the remaining mass being copper; other alloying agents such as iron, nickel, manganese, and silicon are also sometimes added to aluminum bronzes.