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...composition. This album is concerned mainly with the interpretation of geological maps and the relationship between the landscape and underlying rocks. It reveals how the geological history of any area can be interpreted from a geological map. Dr Andrew Bell visits Morecambe Bay and the 'special' Siccar Point to investigate the rocks and stones in the area. This material...

...compositions include steels suitable for carburising or through-hardening applications, e.g. Fe-1.8Ni-0.45Mo-0.2Mn-0.35C with a tensile strength of 930 MPa and elongation of 13%. Pre-alloyed aluminium alloy powders include the following compositions: Al-1Mg-0.6Si-0.25Cu Al-4.5Cu-0.8Si-0.5Mg A major advantage of powder forged materials is that all the mechanical properties...

...composition. This album features The Open University's Glynda Easterbrook and fellow geologist Tony Lee as they visit Northern Ireland to look at some amazing rock forms and some fascinating successions of different depositional environments. This material forms part of The Open University course S260 Geology... Rocks in the field Intro to album, as per album description....

...composites, wood, paper, asbestos, leather, fabric, food and ceramics. Hard metals have not been successfully cut, but hard, dense, glass-like materials such as acrylics, polycarbonates and styrene do not cut well except in thin sheets. Laminated composites have a tendency to delaminate, but this can usually be avoided by reduction of cutting rate and careful control of...

...composition is such that the required hardness will be obtained on quenching from the austenite region: a minimum of 0.3% C. Most materials have at least 0.4% C, and up to 0.7% C. Plain carbon steels, alloy steels and grey, nodular and malleable cast irons; the temperature depends on the material: 750–760° C 0.5% plain carbon 900–800° C chromium–molybdenum alloy...