Please use this identifier to cite or link to this item: http://localhost:8081/xmlui/handle/123456789/4002
Title: EFFECT OF TERNARY ADDITIONS ON THE AGEING CHARACTERISTICS OF SOME ALUMINIUM - COPPER ALLOYS
Authors: Kapur, K. K.
Keywords: METALLURGICAL MATERIAL ENGINEERING;TERNARY ADDITIONS;AGEING CHARACTERISTICS;ALUMINIUM - COPPER ALLOYS
Issue Date: 1971
Abstract: Effect of indium on the kinetics of pre-precipitation in Al-Cu alloys has been followed by measurements of electrical resistivity of quenched wires. The resistivity studies indicate that In has a marked effect on the pre-precipitation stage as it reduces the clustering rate to a large extent. , and. % for Al-Cu binary and Al-Cu-in ternary alloys are calculated and efforts made to correlate the effect of In addition in terms of high binding energy between an In atom and a vacancy. A simple analysis in terms of In/vacancy binding energy gives a value of 0,35 to 0.38 eV as compared to Cu vacancy binding energy of 0.10 eV. Hardness measurements carried out for Al-Cu binary alloys predicted the activation energy for the growth of 01 precipitate to be around 1.04 eV.
URI: http://hdl.handle.net/123456789/4002
Other Identifiers: M.Tech
Research Supervisor/ Guide: Rajan, T. v.
metadata.dc.type: M.Tech Dessertation
Appears in Collections:MASTERS' THESES (MMD)

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