RESEARCH OF HEAT TREATMENT CONDITION INFLUENCE ON CR-NI-AL ALLOY MICROSTRUCTURE
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This article presents the study of heat treatment condition influence on Cr-Ni-Al alloy microstructure and its mechanical properties including dimensional stability characteristics which provide keeping high accuracy of float gyro precision details. Optimal annealing conditions are detected. Correlation between ageing conditions and dimensional stability characteristics such as precision elastic limit σ0,0001is determined. Ageing temperature range 400-550°Сis defined as allowing getting higher precision elastic limit with keeping alloy plasticity.