T - Aluminium Articles

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The aluminium industry in India

India’s economy is the 9th largest worldwide with a tendency of constant growth. This is a result of the continuous liberation of India’s controlled economy after 1991. The state still interferes strongly with private corporations but is also on a course towards an extensive liberalisation of the economy. Ever since 1997 the focus of economic

Types of corrosion

Uniform corrosion: As the name implies, uniform corrosion occurs uniformly over the whole metal surface with an almost uniform rate of metal loss. In general, it only occurs when acids or alkalis are involved. Alkaline lyes, (, such as caustic potash and caustic soda, in particular, are especially good at dissolving the oxide layer, as are halogen

The basics of age hardening

Age hardening depends on segregation processes that occur in supersaturated solid solution at room temperature or moderately elevated temperature. Unlike diffusionless martensitic transformation in steel, the segregation here is diffusion-controlled and markedly dependent on time and temperature. Segregation processes can occur when the solubility

Thermal spraying

Thermal spraying is a surface finishing process in which a protective layer is applied to aluminium at high temperature. It results in high wear resistance. Metals, ceramics and plastics, in powder or wire form, are used as coating materials. This type of coating is particularly necessary when aluminium components are subjected to exacting

The aluminium industry in Australia

Australia is the world’s biggest producer of bauxite. 40 Percent of worldwide bauxite and 30 percent of aluminium production happens ‘down under’. Australia’s aluminium industry includes five bauxite mines, as well as, among others, the branches of finishing, smelting and semi-finished products. The Bell Bay Smelter in Tasmania was the first

The basics of Aluminium modification

Modification is usually carried out using sodium or strontium. With strontium, one talks of permanent modification. Strontium has the advantage that it burns off considerably more slowly than sodium. This can be a major advantage, e.g. with permanent mould castings, if metal is cast over a prolonged period from a holding furnace. In France,

Thixoforming: Development

Forming processes for aluminium alloys with thixotropic properties are a relatively recent field of application for aluminium and offer great innovative potential. New developments are focussing particularly on the alloy spectrum that can be used and on process optimisation, both for the shaping process as well as for feedstock production. There