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THE INFLUENCE OF THE TEMPERATURE-TEMPORAL FACTORS ON THE DIMENSIONAL STABILITY OF THE HIGH-STRONG ALUMINIUM ALLOYS

By Sergey Stephanovich Goncharov

Abstract

The object of investigation: the high-strong aluminium alloys D16, B95, B96C1. The purpose of the work: the insurance of the dimensional stability and the high-strong state of the aluminium alloys on the base of establishing of mechanisms of its relaxation and structural metastability and temperature-temporal parameters of the two-stage ageing. Developed have been the empirical models, adequately describing the variation of the B96C alloy mechanical properties characteristics with two-stage ageing. The methodology of determination of the temperature-temporal parameters of the two-stage ageing, ensuring the guaranteed dimensional stability of the aluminium alloys with the preset level of the strength characteristics, has been offered and justified. The empirical models and the methodology of determination of modes of the two-stage ageing, ensuring the high-strength condition and the dimensional stability, have been recommended for a selection of the modes and control by the technological process of the thermal treatment of the aluminium alloys. The complex of measures, providing the minimum warping of the parts of a special machine construction on the stages of hardening, ageing, operation and storage, has been developed. The results of the work have been used in the Design Bureau of the Instrument Building in Tula. The efficiency of introduction: the enterprises of the exact machine constructionAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio

Topics: 11F - Metallurgy, metallography, 20K - Solid-state physics, PHYSICS, METALLURGY, MECHANICAL ENGINEERING
Year: 1992
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Provided by: OpenGrey Repository
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