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HomeKey Engineering MaterialsKey Engineering Materials Vol. 887Relieving of Residual Stresses in Metal Workpieces...

Relieving of Residual Stresses in Metal Workpieces at High and Low Temperatures

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Abstract:

On the basis of previously accumulated irreversible deformations, and, consequently, residual stresses, the process of removing residual stresses in metal workpieces under the action of low and high temperatures is simulated. Boundary value problems are solved and here are described regularities that are responsible for removing residual stresses for processing modes: high-temperature heating - cooling, high-temperature heating - holding - cooling, low-temperature heating - holding - cooling. The holding stage is modeled, taking into account the creep properties of materials under Norton creep conditions. According to the dependences of the obtained exact solutions, it is shown that it is the holding process that leads to the relaxation of residual stresses.

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Periodical:

Key Engineering Materials (Volume 887)

Pages:

651-656

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.887.651

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Online since:

May 2021

Authors:

Marina V. Polonik*

Keywords:

Annealing, Elastic-Creep Deformation, Loading Pressure, Plastic Flow, Residual Stresses, Rheology, Temperature Influence

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© 2021 Trans Tech Publications Ltd. All Rights Reserved

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