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Properties and applications of engineering materials
Published in Alan Darbyshire, Charles Gibson, Mechanical Engineering, 2023
Alan Darbyshire, Charles Gibson
Tin–bronzes are alloys in which the main constituents are copper and tin. Phosphorus is sometimes added in small amounts to prevent the tin from oxidising when molten. This gives rise to the name phosphor–bronze which is very malleable and ductile and widely used for plain bearings. Tin–bronzes which contain zinc are known as gunmetal. They have good fluidity when molten and can be cast into intricate shapes. When cooled they are strong, tough and corrosion resistant. Small amounts of lead are also sometimes added to tin–bronzes to improve their machinability. Four of the more common tin–bronzes are listed in Table 5.5.
Copper and its alloys
Published in William Bolton, R.A. Higgins, Materials for Engineers and Technicians, 2020
This contains 10% tin and 2% zinc, the latter acting as a deoxidiser, and also improving fluidity during casting. Since zinc is considerably cheaper than tin, the total cost of the alloy is reduced. Gunmetal is no longer used for naval armaments, but it is used as a bearing alloy, and also where a strong, corrosion-resistant casting is required. See Table 16.4 for data on gunmetals.
Centrifugal Pumps and Priming— Coolers and Cooling Systems— Pipelines and Corrosion
Published in H. D. McGeorge, General Engineering Knowledge, 2012
Naval brass tubeplates are used with aluminium brass tubes. Tube stacks are made up to have a fixed tube plate at one end and a tube plate at the other end which is free to move with the expansion of the tubes (Fig. 8). Other materials found in service are gunmetal, aluminium bronze and sometimes special alloys.
Machinability Analysis and Optimization in Micro turning on tool wear for Titanium Alloy
Published in Materials and Manufacturing Processes, 2021
S. Selvakumar, V. S. Sreebalaji, K Ravikumar
Miniaturization of business parts has been the progress of technical and scientific development that plays a major role in daily demand of the precision parts. Microturning is being the essential technologies to create miniaturized parts by using solid cutting tools for producing 3-D parts. Microcomponents might well be factory-made from a combination of fabric supported their application and necessity. Nataraj et al.[32] observed that the reinforcing of ash in composite will increases and density in composite decreases and from this investigation infers that the increase in reinforcement of fly ash decreases the elongation and ultimate tensile strength. Applicable materials are listed by major micromanufacturing firms embrace aluminum, beryllium, copper, brass, copper alloys, maraging steels, gunmetal, nickel, nickel alloys, spring steels, stainless steels, tantalum, tin, titanium, titanium alloys, tungsten, composite, and others based on the applications in various fields. Non-ferrous material like brass, copper, and nickel are used extensively within the field of medical as functional implants, nozzles, microfluidics, microrheometers, and mixers.