Abstract
The paper specifies the results obtained during hot deformation tests of EP962NP heat-resistant granulated nickel alloy in the Gleeble System 3800, a thermo-mechanical physical simulation system, at deformation temperatures of 1100, 1150 and 1200 °C and deformation rates of 0,1 and 1 s–1. The data on changes in the sample microstructure during deformation are provided. Conditions are determined for obtaining ultrafine alloy structure required to implement the superplasticity mechanism. Based on rheological properties, the paper determines recommended modes for hot deformation treatment of products made of EP962NP that surpasses the most common domestic granulated nickel alloys by the complex of strength properties and heat-resistance. The possibility to make products of this alloy using the «HIP + deformation» technology is of interest: implementation of this approach will further improve the properties of this alloy.
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Schedule a callMore From: Izvestiya Vuzov Tsvetnaya Metallurgiya (Proceedings of Higher Schools Nonferrous Metallurgy
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